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nikunj_sonigara
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C++, Python, Java, Javascript, C
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2792
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1643
878 points
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185 submissions in current year
SCHOOL (125)
BASIC (497)
EASY (1000)
MEDIUM (984)
HARD (186)
- Reverse alternate nodes in Link List
- Reverse a Linked List in groups of given size
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Add Number Linked Lists
- Rearrange a linked list
- Add 1 to a Linked List Number
- Merge 2 sorted linked list in reverse order
- Detect Loop in linked list
- Delete nodes having greater value on right
- Quick Sort on Linked List
- Insert in Sorted Circular Linked List
- Merge Sort
- Quick Sort
- Construct Binary Tree from Inorder and Postorder
- Bottom View of Binary Tree
- Intersection Point in Y Shaped Linked Lists
- Diameter of a Binary Tree
- Heap Sort
- Merge two sorted linked lists
- Add all greater values to every node in a BST
- Sum Tree
- Construct Binary Tree from Parent Array
- Connect Nodes at Same Level
- Flattening a Linked List
- Diagonal Traversal of Binary Tree
- Tree Boundary Traversal
- Delete a node from BST
- Directed Graph Cycle
- Undirected Graph Cycle
- Lowest Common Ancestor in a Binary Tree
- Min distance between two given nodes of a Binary Tree
- Square root of a number
- Maximum difference between node and its ancestor
- Range Minimum Query
- Absolute List Sorting
- Binary Heap Operations
- Max sum path in two arrays
- The Celebrity Problem
- Topological sort
- Vertical Traversal of Binary Tree
- Merge K sorted linked lists
- Find the number of islands
- Find kth element of spiral matrix
- Max sum in the configuration
- Get Min from Stack
- Serialize and deserialize a binary tree
- Gas Station
- Make Binary Tree From Linked List
- Toeplitz matrix
- Generate IP Addresses
- Check if subtree
- Extreme nodes in alternate order
- Kth element in Matrix
- Is Binary Tree Heap
- Clone a Binary Tree
- Validate an IP Address
- Remove loop in Linked List
- Dijkstra Algorithm
- Distinct occurrences
- Max length chain
- Minimum Spanning Tree
- Additive sequence
- Largest BST
- Interleaved Strings
- Sum of permutations
- Sorted subsequence of size 3
- Sum of subset differences
- Count Palindromic Subsequences
- Multiply two strings
- Minimum Swaps to Sort
- Implement Atoi
- Maximum Difference
- Count of distinct substrings
- Palindrome Linked List
- Strongly Connected Components (Kosaraju's Algo)
- Rat in a Maze Problem - I
- Bipartite Graph
- Max sum subarray by removing at most one element
- Number of root to leaf paths
- Find the Closest Element in BST
- BST with Dead End
- Pots of Gold Game
- Merge two BST 's
- Minimum four sum subsequence
- Trie | (Delete)
- Merge k Sorted Arrays
- Root to leaf paths sum
- Length of longest palindrome in linked list
- Bridge edge in a graph
- Print Nodes having K leaves
- Find triplets with zero sum
- Sort a stack
- Duplicate subtree in Binary Tree
- Find the missing no in string
- Top View of Binary Tree
- k-th Smallest in BST
- Peak element
- Polynomial Addition
- Delete nodes greater than k
- Merge Sort for Linked List
- Maximum Bipartite Matching
- Euler Circuit in an Undirected Graph
- Euler circuit and Path
- Merge Sort on Doubly Linked List
- Ancestors in Binary Tree
- Binary Tree to CDLL
- Pair Sum in BST
- Root to Leaf Paths
- Occurences of 2 as a digit
- Complete Binary Tree
- Populate Inorder Successor for all nodes
- XOR Linked List
- Counting elements in two arrays
- Construct expression tree
- Linked List that is Sorted Alternatingly
- K Sum Paths
- Foldable Binary Tree
- Leftmost and rightmost nodes of binary tree
- Construct Tree from Inorder & Preorder
- Construct tree from Inorder and LevelOrder
- Arrange Consonants and Vowels
- Node at distance
- Vertical sum
- Mirror of a given node
- Insert in Sorted way in a Sorted DLL
- Check if Tree is Isomorphic
- Maximum path sum from any node
- Predecessor and Successor
- Leaves to DLL
- Largest Independent Set Problem
- Check for Children Sum Property in a Binary Tree
- Diagonal sum in binary tree
- Deletion and Reverse in Circular Linked List
- Duplicate Subtrees
- Construct Tree from Preorder Traversal
- Sum of nodes on the longest path
- Kth Ancestor in a Tree
- Construct a Full Binary Tree
- Check if two Nodes are Cousins
- Convert Level Order Traversal to BST
- ZigZag Tree Traversal
- Count Number of SubTrees having given Sum
- Vertical Width of a Binary Tree
- C++ Friend function
- C++ Generic sort
- Cat and Hat - Python
- Zero Converter - Python
- Add two numbers represented by Linked List
- Maximum sum of Non-adjacent nodes
- Mother Vertex
- Ceil in BST
- Count total set bits
- Gray to Binary equivalent
- Maximum AND Value
- Tower Of Hanoi
- Smallest Positive Missing Number
- Power Of Numbers
- Maximum occured integer
- Possible Words From Phone Digits
- Rotate and delete
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Maximum Index
- Trapping Rain Water
- Stock buy and sell
- Rotate Array
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Two Repeated Elements
- Smallest Positive missing number
- Unique BST's
- Union of Two Sorted Arrays
- Indexes of Subarray Sum
- Count the number of possible triangles
- Triplet Sum in Array
- Number of pairs
- Possible paths between 2 vertices
- Level of Nodes
- Make Matrix Beautiful
- Boolean Matrix
- Spirally traversing a matrix
- Search in a sorted Matrix
- Distance of nearest cell having 1
- Unit Area of largest region of 1's
- Subarray with 0 sum
- Subarray range with given sum
- Subarrays with equal 1s and 0s
- Sorting Elements of an Array by Frequency
- Longest Consecutive Subsequence
- Case-specific Sorting of Strings
- Evaluation of Postfix Expression
- Stock span problem
- Next Greater Element
- Infix to Postfix
- K Sized Subarray Maximum
- K largest elements
- Nearly sorted
- Activity Selection
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Largest number in K swaps
- Black and White
- Combination Sum
- Unique Subsets
- M-Coloring Problem
- Minimum Jumps
- Detect Cycle using DSU
- Ways to write n as sum
- Stickler Thief
- Ways to Reach the n'th Stair
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Optimal Strategy For A Game
- Sum of all substrings of a number
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Lucky Numbers
- Number of Unique Paths
- Sort an array according to the other
- Allocate Minimum Pages
- Preorder to PostOrder
- X Total Shapes
- Zero Sum Subarrays
- Find whether path exist
- Kth Smallest
- Implement Trie
- Shortest Common Supersequence
- Nth catalan number
- Rotten Oranges
- Steps by Knight
- Most frequent word in an array of strings
- Count subsequences of type a^i, b^j, c^k
- Maximize The Cut Segments
- Container With Most Water
- Print Anagrams Together
- Rotate by 90 degree
- Convert Integer to English Word
- Radix Sort
- K closest point to origin
- Closest Three Sum
- Word Break
- Stock buy and sell II
- Generate Parentheses
- Word Search
- Prerequisite Tasks
- Find All Four Sum Numbers
- Excel Sheet | Part - 1
- Paths to reach origin
- Taking 1 out of 3 consecutives
- Missing And Repeating
- Complement
- Maximum Sub Array
- Pascal Triangle
- Maximum Index
- Number of subarrays with maximum values in given range
- Flip Bits
- Sum of Subarrays
- Equal Sum
- Top k numbers in a stream
- Large Factorial
- Longest Span in two Binary Arrays
- Maximize Number of 1's
- Max and Min Products
- Median of two sorted arrays
- Pair array product sum
- Equivalent Sub-Arrays
- Mr. Modulo and Arrays
- Count Number
- Consecutive 1's not allowed
- Count Occurences of Anagrams
- Count of Subarrays
- Find the element that appears once
- Pythagorean Triplet
- Happiest Triplet
- Painting the Fence
- Sum of two elements with sum nearest to zero
- Search in Rotated Sorted Array
- Smallest factorial number
- Sum of bit differences
- Sonam Bewafa asks questions
- Print Binary Tree levels in sorted order
- Count the Number of Full Binary Trees
- Maximum Intervals Overlap
- Minimums in Array
- Maximize The Array
- Largest Number formed from an Array
- Efficiently sorting numbers in range from 0 to n^2 - 1
- Marks of PCM
- Water Collection
- Alternate Vowel and Consonant String
- Add Binary Strings
- Super Primes
- Sub-Array sum divisible by K
- Maximum Product Subarray
- Longest subarray with sum divisible by K
- Check if a string is repetition of its substring of k-length
- Sort the given array after applying the given equation
- Row with max 1s
- Max value after m range operation
- Swapping pairs make sum equal
- Check if frequencies can be equal
- Column name from a given column number
- Comment Removal
- Concatenation of Zig-Zag String in n Rows
- Design a tiny URL or URL shortener
- Substrings with K Distinct
- Count of Palindromic substrings in an Index range
- Palindrome SubStrings
- Form a palindrome
- Smallest subarray with all occurrences of a most frequent element
- Nuts and Bolts Problem
- Rotate a 2D array without using extra space
- Numbers with one absolute difference
- Longest Subarray with Sum K
- Transform String
- Count the Reversals
- Combine the strings
- Number of positive integral solutions
- Cutting Binary String
- Sum of two large numbers
- Sick Pasha
- Equal 0, 1 and 2
- Beautiful SubSequence
- Factorials of large numbers
- Search Pattern (KMP-Algorithm)
- Find length of longest subsequence
- Maximum length Bitonic Subarray
- Shuffle integers
- Reverse each word in a given string
- Find the N-th character
- Length of the longest substring
- Remove leading zeros from an IP address
- The Tiny Miny
- Maximum Sum Path in Two Arrays
- k largest elements
- Sum of XOR of all pairs
- Find missing in second array
- Magnet Array Problem
- Longest Common Substring
- Smallest distinct window
- Longest common substring value of two numbers
- Count of substrings containing K ones
- Longest Substring with K Uniques
- Longest Palindrome in a String
- Look and Say Pattern
- Minimum steps to get desired array
- Pass the semester
- Find the position
- Valid Expression
- Tic Tac Toe
- Integer to Words
- String Conversion
- K-th element of two Arrays
- Arranging the array
- String formation from substring
- Possible groups
- Longest Arithmetic Progression
- Count triplets with sum smaller than X
- Rod Cutting
- Save Gotham!
- Aditya and his building blocks
- K closest elements
- Number of pairs
- Subset with no pair sum divisible by K
- Smallest Subarray GCD
- Missing element of AP
- Minimum swaps and K together
- Maximize the sum of selected numbers from a sorted array to make it empty
- Smallest Absolute Difference
- LCS of three strings
- Longest Palindromic Subsequence
- Largest Sum Subarray of Size at least K
- Longest Common Increasing Subsequence
- Smallest Non-Zero Number
- Find the number of subarrays having even sum
- Find k-th character in string
- Longest Prefix Suffix
- Maximum difference of zeros and ones in binary string
- Equalize the Towers
- Number of palindromic strings
- Minimum sum
- Not a subset sum
- Build the smallest
- Maximum possible sum
- Minimize the Heights II
- Large Factorials
- Surpasser Count
- Transform to prime
- First and last occurrences of x
- Check if any valid sequence is divisible by M
- Reaching the heights
- Construct binary palindrome by repeated appending and trimming
- Next higher number in one swap
- Next higher palindromic number using the same set of digits
- Smaller on Left
- Minimum Deletions
- A difference of values and indexes
- Maximum Product of Increasing Subsequence of Size 3
- Print N-bit binary numbers having more 1s than 0s
- Nine Divisors
- Valid Substring
- Find patterns
- Minimum number of deletions.
- Minimum Swaps for Bracket Balancing
- Permutations of a String
- Missing Intervals
- Print kth character
- Number following a pattern
- Previous number in one swap
- Challenge by Nikitasha
- Mapped String
- Substring - Subsequence problem
- Find largest word in dictionary
- Rotate String
- Friends Pairing Problem
- String Subsequence Game
- Special Numbers
- CamelCase Pattern Matching
- Pallindrome Patterns
- Count divisors of product of array elements
- Maximum Sum Subsequence of length k
- Lexicographically smallest string
- Sum of Products
- Count the subarrays having product less than k
- Unique Number II
- Bleak Numbers
- Queries for counts of multiples in an array
- Ways to sum to N
- Skip the work
- Maximum bitonic subarray sum
- Max possible amount
- Maximum calorie
- Modular Exponentiation for large numbers
- Edit Distance
- Game of XOR
- Largest prime factor
- 3 Divisors
- Maximum Tip Calculator
- Find the element at given index
- Min cut Square
- Modified Game of Nim
- Disarrangement of balls
- Minimum number of deletions and insertions.
- Maximum sum increasing subsequence
- Minimum cost to fill given weight in a bag
- Coin Change (Count Ways)
- Sequence of Sequence
- Count of n digit numbers whose sum of digits equals to given sum
- Santa Banta
- Minimum steps to delete a string
- String Subsequence
- Minimum Time
- Mobile numeric keypad
- Modify array to maximize sum of adjacent differences
- Gold Mine Problem
- Non-decreasing subsequence
- Coin Change (Minimum Coins)
- Dice throw
- Number of subsequences in a string divisible by n
- Palindromic Strings
- Perfect Sum Problem
- Fibonacci Sum
- Smallest number
- Power Of 2 and Subsequences
- Dyck Path
- Kth Smallest Factor
- Firing employees
- Shreyansh and his bits
- Longest subsequence-1
- Find the largest number
- Power Set
- Count ways to N'th Stair(Order does not matter)
- First Digit
- Subset with sum divisible by m
- Knapsack with Duplicate Items
- Printing Maximum Sum Increasing Subsequence
- Temple Offerings
- nCr
- Number of ways
- Count Integral Points
- Count of sum of consecutives
- Subsets with XOR value
- Geek and its Game of Coins
- Maximum path sum in matrix
- Minimum steps to destination
- k-th smallest number using digits of a given number
- Special Keyboard
- Partition Equal Subset Sum
- XOR Game
- Longest Bitonic subsequence
- Min Coin
- Get Minimum Squares
- Maximum GCD Pair
- Part of it.
- Lucky alive person in a circle
- Handshakes
- Count possible ways to construct buildings
- Count distinct pairs with difference k
- Count digit groupings of a number
- Jumbled Strings
- Dimensions of Rectangle
- Probability of Knight
- Array Pair Sum Divisibility Problem
- Count the number of ways to tile the floor of size n x m using 1 x m size tiles
- Digit multiplier
- Magic Triplets
- Brain Game
- Money Distributions
- Fill up buckets
- Matchsticks game
- Median in a row-wise sorted Matrix
- N trailing zeroes in factorials
- Killing Spree
- Subset Sums
- Unique partitions
- Prime Pair with Target Sum
- N Digit numbers with digits in increasing order
- Carmichael Numbers
- Square Numbers
- Count Numbers in Range
- Yes XOR No
- Fill the Tank
- Akku and Binary Numbers
- Number of paths
- Sisters and coins
- Nth Natural Number
- Knight Walk
- Stepping Numbers
- Permutation with Spaces
- Path of greater than equal to k length
- Coins and Game
- Number of paths in a matrix with k coins
- Card Rotation
- Bell Numbers
- Game of Chocolates
- Choose and Swap
- Find the last digit when factorial of A divides factorial of B
- LCM Triplet
- Count Total Setbits
- Sum of Query II
- Fact Digit Sum
- Find Prime numbers in a range
- Arrange Balls
- Power of Largest Prime
- Count Divisors of Factorial
- Jumping Numbers
- A Game of LCM
- Count in array
- Party in Town
- Game with String
- Two water Jug problem
- Count even length
- A Simple Fraction
- Numbers with alternative 1's
- Grouping Of Numbers
- Find the Safe Position
- Smith Number
- Fraction Trouble
- Cows of FooLand
- Count of AP Subsequences
- Next Permutation
- Missing number in matrix
- Rank The Permutations
- Prime factorization and geek number
- Element left after performing alternate OR & XOR operation
- Smallest number on left
- Maximum sum of hour glass
- Geek and knots
- Nitika and her queries
- Filling Bucket
- Divisibility
- How Many X's?
- Large Product-2
- Matrix Exponentiation
- Longest Repeating Subsequence
- Longest alternating subsequence
- Composite and Prime
- Finding Profession
- Left Rotate Matrix K times
- Decode the string
- Is Sudoku Valid
- Total Decoding Messages
- Distributing Balls
- First non-repeating character in a stream
- Maximum Sub-String after at most K changes
- Count Divisors
- Mathematical manipulation
- Check If two Line segments Intersect
- 2D Hopscotch
- Buying Vegetables
- Villain Con
- Possible paths
- Segregate even and odd nodes in a Linked List
- Print leaf nodes from preorder traversal of BST
- Geek collects the balls
- Number of Rectangles in a Circle
- Largest square formed in a matrix
- Pizza Mania
- Tricky Subset Problem
- Longest Geometric Progression
- Water Overflow
- Longest Perfect Piece
- Rat Maze With Multiple Jumps
- Integral Points Inside Triangle
- Kth largest element in a stream
- Easy Query
- Snake and Ladder Problem
- Geek and Strings
- Sum of Query I
- Pairs of Non Coinciding Points
- The Smurfs
- Divide and Subtract Game
- Satisfy the equation
- 7 Segment Display
- Product of Primes
- Eulerian Path in an Undirected Graph
- Transitive closure of a Graph
- Replace O's with X's
- nCr mod M | Part 2
- Two numbers with odd occurrences
- Mail System Design
- Find all distinct subset (or subsequence) sums
- Cost of Sweets
- Check Mirror in N-ary tree
- Your Social Network
- Queries on Strings
- Special Matrix
- Recurrence Matrix
- Leftmost Divisor
- Express as sum of power of natural numbers
- Count all Possible Path
- Find the string in grid
- Shortest Uncommon Subsequence
- Number of Palindromic paths in a Matrix
- Nodes at even distance
- Biconnected Graph
- Reverse Delete Algorithm for Minimum Spanning Tree
- Help a Thief!!!
- Count the paths
- Floyd Warshall
- Negative weight cycle
- Flood fill Algorithm
- Form coils in a matrix
- Techfest and the Queue
- Largest subsquare surrounded by X
- Shortest Source to Destination Path
- Divisibility tree
- Base Equivalence
- Maximum sum Rectangle
- Shortest Path between Cities
- Fun With Expresions
- Special Number
- Moving on grid
- Height Using Parent Array
- Reverse Spiral Form of Matrix
- Police and Thieves
- Geek in a Maze
- Geek and Number String
- Print the Sequence
- Save Your Life
- Image Multiplication
- Missing Point of a Parallelogram
- Huffman Encoding
- Hamiltonian Path
- Recursively remove all adjacent duplicates
- Theft at World Bank
- Number of minimum picks to get 'k' pairs of socks from a drawer
- Spiral Matrix
- Coins of Geekland
- Valid Pair Sum
- Dam of Candies
- Transfiguration
- Repeated String Match
- Ruling Pair
- Count Triplets
- Restrictive Candy Crush
- Help Classmates
- Restricted Pacman
- Valentine Sum
- Lucy's Neighbours
- Spidey Sense
- Project Manager
- Water the plants
- Escape the Forbidden Forest
- Jump Game
- Maximum value of difference of a pair of elements and their Index
- Inorder Traversal (Iterative)
- Triplets with sum with given range
- Preorder traversal (Iterative)
- Postorder Traversal (Iterative)
- Subset Sum Problem
- Form a palindrome
- Search Pattern (Z-algorithm)
- Search Pattern (Rabin-Karp Algorithm)
- Find all possible palindromic partitions of a String
- Covid Spread
- 3 sum closest
- Bellman-Ford
- Player with max score
- Gray Code
- Subarrays with sum K
- Remove BST keys outside given range
- Partition a Linked List around a given value
- Minimum XOR value pair
- Searching an element in a sorted array (Ternary Search)
- Open the gates
- Capacity To Ship Packages Within D Days
- Sort a 2D vector diagonally
- Coin Piles
- Rearrange characters
- Distribute N candies among K people
- Remove K Digits
- Substrings of length k with k-1 distinct elements
- Clone a stack without using extra space
- Maximum XOR of two numbers in an array
- Count pairs in array divisible by K
- Construct list using given q XOR queries
- Number of Provinces
- Prefix match with other strings
- Binary Matrix with at most K 1s
- Maximum sum leaf to root path
- Find duplicate rows in a binary matrix
- Maximum GCD of siblings of a binary tree
- Single valued subtree
- BST to max heap
- Maximum sum of elements not part of LIS
- BST to greater sum tree
- Find rectangle with corners as 1
- Paths from root with a specified sum
- Shortest Prime Path
- Shortest Prime Path
- Cousins of a given node
- Division without using multiplication, division and mod operator
- Insertion Sort for Singly Linked List
- Remove all occurences of duplicates in a linked list
- Minimize the Heights I
- Subsets
- Flatten binary tree to linked list
- Rank The Permutations
- Anti Diagonal Traversal of Matrix
- Design Browser History
- IPL 2021 - Match Day 2
- IPL 2021 - Match Day 4
- Neeman's Shoes
- Unique Number III
- All Unique Permutations of an array
- Course Schedule
- License Key Formatting
- Find and Replace in String
- Clone an Undirected Graph
- Min Cost Climbing Stairs
- Minimum times A has to be repeated such that B is a substring of it
- Bitwise AND of the Array
- Overlapping Intervals
- Bitwise AND of the Array
- Remove and Reverse
- Buy and Sell a Share at most twice
- Maximum number of events that can be attended
- Longest Possible Route in a Matrix with Hurdles
- Find k-th smallest element in given n ranges
- Even Swap
- Reverse a Stack
- Farthest number
- Maximum product subset of an array
- Robots
- K-th Largest Sum Contiguous Subarray
- Hit most Balloons
- Maximum Meetings in One Room
- Enemy
- Find Maximum Equal sum of Three Stacks
- Buy Maximum Stocks if i stocks can be bought on i-th day
- Exactly one swap
- Maximum Winning score
- Compute Before Matrix
- Interleave the First Half of the Queue with Second Half
- Levels Of Game
- Smallest sum contiguous subarray
- Array Removals
- Max Sum without Adjacents 2
- Find shortest safe route in a matrix
- Minimum Cost to cut a board into squares
- Stack Permutations
- Largest subtree sum in a tree
- Calculate the coefficient
- Expression contains redundant bracket or not
- Assembly Line Scheduling
- Wine Buying and Selling
- Maximum trains for which stoppage can be provided
- Is it a tree ?
- Replace every element with the least greater element on its right
- Geek fight
- Minimum time taken by each job to be completed given by a Directed Acyclic Graph
- Minimum Cost Car
- Maximum selections
- LCP
- Next element with greater frequency
- Minimize Cash Flow
- Minimum edges
- Minimum Swaps
- Construct Binary Tree from String with bracket representation
- Number of Distinct Islands
- Shortest Distance in a Binary Maze
- Minimum Multiplications to reach End
- Number Of Enclaves
- Eventual Safe States
- City With the Smallest Number of Neighbors at a Threshold Distance
- Alex Travelling
- Number Of Islands
- Merging Details
- Number of Ways to Arrive at Destination
- Pattern
- Path With Minimum Effort
- Cheapest Flights Within K Stops
- Connecting the graph
- Shortest path in Undirected Graph
- Maximum Stone Removal
- Shortest path in Directed Acyclic Graph
- Majority Element II
- Sum of Beauty of All Substrings
- Koko Eating Bananas
- Search in Rotated Array 2
- Count Good numbers
- Longest subarray with Atmost two distinct integers
- Longest Repeating Character Replacement
- Count Subarray with k odds
- Count Substring
- Binary subarray with sum
- Sum of subarray minimum
- Asteroid Collision
- Minimal Cost
- Geek's Training
- Grid Path 2
- Sum of subarray ranges
- Maximum point you can obtain from cards
- Subarrays with K Different Integers
- Buy Stock 2
- Buy Stock with Cooldown
- Combination Sum III
- Aggressive Cows
- Smallest Divisor
- Subset II
- Combination Sum II
- Check if there exists a subsequence with sum K
- Next Greater Element 2
- Number of NGEs to the right
- Combination Sum II
- Shortest Path in Weighted undirected graph
- Prime Factorization using Sieve
- Prefix to Infix Conversion
- Prefix to Postfix Conversion
- Word Search
- Minimum days to make M bouquets
- Generate all binary strings
- Delete all occurrences of a given key in a doubly linked list
- Postfix to Prefix Conversion
- Postfix to Infix Conversion
- Task Scheduler
- Hands of Straights
- Minimum Absolute Difference In BST
- Buy Stock with Transaction Fee
- Number of Longest Increasing Subsequence
- Lemonade Change
- Maximum Sum Combination
- Non-overlapping Intervals
- Stickler Thief II
- Replace elements by its rank in the array
- Convert Min Heap to Max Heap
- Insert Interval
- Shortest Job first
- Partition Array for Maximum Sum
- Count Square Submatrices with All Ones
- Count Number of Nodes in a Binary Tree
- Introduction to DP
- Longest String Chain
- Printing Longest Increasing Subsequence
- Partitions with Given Difference
- Index of the First Occurrence of pattern in a text
- Floor in BST
- Triangle Path Sum
- Largest Divisible Subset
- GCD Array
- Minimize number of Students to be removed
- Maximum Value
- Shortest Prime Path
- Flattening a Linked List
- Make array elements unique
- Next Greater Element
- Carpet into Box
- Minimum X (xor) A
- Find minimum number of Laptops required
- Geeks And The String
- Find the longest string
- Maximum Profit By Choosing A Subset Of Intervals
- Minimum repeat to make substring
- Distinct Coloring
- Intersection Point in Y Shaped Linked Lists
- BST Downward Traversal
- Length of the longest subarray with positive product
- Maximum Bipartite Matching
- Minimum Days
- Prime List
- Walls Coloring
- Water the plants
- Geeks Island
- Connect Nodes at Same Level
- Unique Paths in a Grid
- Valid Compressed String
- Fill the Matrix
- Number of Good Components
- Optimal Array
- Best Node
- Update Queries
- Good Stones
- Maximum Intersecting Lines
- String rp or pr
- Knight in Geekland
- Shy Geek
- Count Special Numbers
- Minimum Steps Required
- Count Cyclic Paths
- Maximum Triplet product
- Second smallest number
- Special Palindrome Substrings
- Maximum Possible Value
- Find anagrams in linked list
- Yet another query problem
- Geek hates too many 1s
- Maximum Length
- Remove the balls
- Unequal Arrays
- Job Sequencing Problem
- Bheem Wants Ladoos
- Prefix Suffix String
- Smaller Sum
- Shortest XY distance in Grid
- BST Maximum Difference
- Nearest smaller tower
- Another Coin Change Problem
- Geek's Village and Wells
- Find Number
- Max Coins
- Good Subtrees
- Subtree In N-ary Tree
- Easy Task
- Add Minimum Characters
- Maximum subset sum
- Palindrome with minimum sum
- Count Total Setbits
- Tree Transformation
- Construct a Full Binary Tree
- Modify Linked List-1
- Find Kth permutation
- Fraction pairs with sum 1
- Make best team for World Cup 2023
- Sort last M elements
- New Year Resolution
- Friendly Neighbourhood Geek App
- Serialize and Deserialize a Binary Tree
- Unique BST's
- Grinding Geek
- Flatten BST to sorted list
- Minimize the Difference
- Pairs violating the BST property
- Kth common ancestor in BST
- Kth Missing Positive Number in a Sorted Array
- Count Subarrays with given XOR
- Set Matrix Zeroes
- Minimum cost to connect all houses in a city
- Meeting Rooms
- Find All Triplets with Zero Sum
- Split array in three equal sum subarrays
- Search in an almost Sorted Array
- Find H-Index
- Longest Subarray with Majority Greater than K
- Count all triplets with given sum in sorted array
- Implement Pow
- K Closest Points to Origin
- Longest Bounded-Difference Subarray
- Lexicographically Largest String After Deleting K Characters
- Group Balls by Sequence
- Reverse an Array
- Check for Binary
- Replace all 0's with 5
- Print the pattern | Set-1
- Palindromic Array
- Multiply Matrices
- C++ Pointers ( Incrementing a variable) | Set 1
- C++ Functions (Sum of numbers) | Set 1
- Print alternate elements of an array
- Java Inheritance
- Java Abstract keyword
- Java Override
- Java Classes Introduction
- Print 1 To N Without Loop
- Sum of Array Elements
- Perfect Arrays
- Multiply Array
- Find Index
- Sum of Array
- Sum of Series
- Print Elements of Array
- At least two greater elements
- Fascinating Number
- Value equal to index value
- Check String
- Convert a list of characters into a String
- Remove characters from alphanumeric string
- Count of camel case characters
- Remove vowels from string
- Compete the skills
- Count type of Characters
- Swap kth elements
- Reversing the vowels
- Extract the integers
- Lower case to upper case
- Smaller and Larger
- Average in a stream
- Remove Spaces
- Print the left element
- Display longest name
- Arrays (Sum of array)
- C++ Array (print an element) | Set 2
- Upper case conversion
- Front-Back Transformation - copy
- Split Strings
- Java Arrays | Set 1
- C++ Strings
- Count of smaller elements
- Pattern of Strings
- Convert String to LowerCase
- Triangle shrinking downwards
- Program to print reciprocal of letters
- Delete alternate characters
- Reverse a String
- Java Strings | Set 1
- Java Substring
- GCD of two numbers
- C++ if-else (Decision Making)
- Addition of Two Numbers
- C++ Input / Output
- 1s Complement
- Odd or Even
- C++ Switch Case Statement
- Number of Diagonals
- C++ Operators | Set 1 (Arithmetic)
- Binary representation
- Even Odd Sum
- Vowel or Not
- if-else (Decision Making)
- Combinational Logic
- Java Hello World
- Java Input/Output
- Armstrong Numbers
- Java loops | Set 1
- Full Prime
- Small Factorial
- Mean
- C++ Data Types
- Find n-th term of series 1, 3, 6, 10, 15, 21
- Count Digits
- Find the median
- Sum Of Digits
- Automorphic Number
- Palindrome
- Sum of odd and even elements
- Number of divisors
- Sum of Digit is Pallindrome or not
- Perfect Number
- Sum of an AP
- Greatest of three numbers
- Sum of AP series
- Sum of GP
- Simple Interest
- Reverse digits
- Power of Pow | Even Number
- Power of Pow | Odd Numbers
- Java Operators(Relational) | Set - 2
- Check if two given circles touch each other
- Series AP
- Floyd's triangle
- Distance between 2 points
- Sum of elements in a matrix
- Identical Matrices
- Find difference between sum of diagonals
- C++ 2-D Arrays | Set-1
- Multiplication Table
- The dice problem
- Java Basic Data Types
- Remainder Evaluation
- Pattern Printing
- Print 1 to n without using loops
- Swap two numbers
- Number Pattern
- 12 hour clock Multiplication
- 12 hour clock addition
- 12 hour clock subtraction
- Decimal to any base conversion
- Sum Palindrome
- Surface Area and Volume of Cuboid
- nPr
- Determine focal length of a spherical mirror
- Parallel or Perpendicular?
- Diagonal sum
- Java Switch Case statement
- Time to Words
- Reverse a linked list
- Occurence of an integer in a Linked List
- Pairwise swap elements of a linked list
- Given a linked list of 0s, 1s and 2s, sort it.
- linked list of strings forms a palindrome
- Compare two linked lists
- Linked List in Zig-Zag fashion
- Detect Loop in linked list
- Rearrange linked list in-place
- Remove duplicates from an unsorted linked list
- Sorted insert for circular linked list
- Split a Circular Linked List into two halves
- Delete node in Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- Count BST nodes that lie in a given range
- Bubble Sort
- Insertion Sort
- Check for BST
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Delete without head pointer
- Height of Binary Tree
- Check for Balanced Tree
- Nth node from end of linked list
- Middle of a Linked List
- Left View of Binary Tree
- Delete Middle of Linked List
- Decimal Equivalent of Binary Linked List
- Transform to Sum Tree
- Intersection of two sorted Linked lists
- Find Transition Point
- Queue using two Stacks
- Remove duplicate element from sorted Linked List
- Stack using two queues
- Level Order in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Reverse alternate levels of a perfect binary tree
- Insert a node in a BST
- BFS of graph
- Determine if Two Trees are Identical
- Root to leaf path sum
- Print all nodes that don't have sibling
- Postorder traversal from given Inorder and Preorder traversals
- Lowest Common Ancestor in a BST
- Implement two stacks in an array
- Max sum path in two arrays
- Run Length Encoding
- Largest subarray of 0's and 1's
- Remove duplicate elements from sorted Array
- Level order traversal Line by Line
- Print BST elements in given range
- Print all possible strings
- Largest subarray with 0 sum
- Minimum Depth of a Binary Tree
- Remove duplicates in array
- Odd even level difference
- Almost Prime Numbers
- Binary Tree to BST
- K-Palindrome
- Equilibrium index of an array
- Unique rows in boolean matrix
- Remove every kth node
- Check if all leaves are at same level
- Match specific pattern
- Find Maximum value
- Multiply two linked lists
- C++ STL | Set 2 (pair)
- Josephus problem
- Java Collection | Set 1 (ArrayList) Part-2
- Java Collection | Set 2 (Set)
- You and your books
- Expression Tree
- Max distance between same elements
- Print matrix in diagonal pattern
- Generate Grey Code Sequences
- Check whether BST contains Dead End
- Delete a Node in Single Linked List
- Kth largest element in BST
- Minimum distance between two numbers
- Find duplicates in an array
- Count distinct elements in every window
- Check if two strings are k-anagrams or not
- Max Level Sum in Binary Tree
- Special Stack
- Root to leaf paths sum
- Three way partitioning
- String Modification
- Longest consecutive sequence in Binary tree
- Find Common Nodes in two BSTs
- Level order traversal
- Peak element
- Inorder Successor in BST
- Index of an Extra Element
- Union of Two Linked Lists
- Intersection of Two Linked Lists
- Disjoint set (Union-Find)
- Insert in a Sorted List
- Split Linked List Alternatingly
- Ancestors in Binary Tree
- Level of a Node in Binary Tree
- Sum of leaf nodes in BST
- Mountain Subarray Problem
- Count More than n/k Occurences
- Root to Leaf Paths
- Max and min element in Binary Tree
- Perfect Binary Tree
- XOR Linked List
- Sum of digits in factorial of a number
- Reverse a string using Stack
- XOR of a given range
- Full binary tree
- Symmetric Tree
- Delete Alternate Nodes
- Construct BST from Postorder
- Merge Lists Alternatingly
- Arrange Consonants and Vowels
- Find the Sum of Last N nodes of the Linked List
- Huffman Decoding-1
- Next Right Node
- Count Pairs whose sum is equal to X
- Insert in Sorted way in a Sorted DLL
- Depth of node
- Maximum Node Level
- Children Sum Parent
- Find length of Loop
- Deletion and Reverse in Linked List
- Change of Key in BST
- Median of BST
- Normal BST to Balanced BST
- Leaf under budget
- Linked List Matrix
- Reverse First K elements of Queue
- Remove Half Nodes
- Height of Spiral Tree
- Magical Number
- Sum of Leaf Nodes
- Sum of Right Leaf Nodes
- Sum of Left Leaf Nodes
- Deletion in a Binary Tree
- Nodes at Odd Levels
- Closest Neighbour in BST
- Brothers From Different Roots
- Exchange the Leaf Nodes
- ZigZag Tree Traversal
- Sum of Leaf Nodes at Min Level
- C++ STL Priority Queue
- Tilt of Binary Tree
- Move all zeros to the front of the linked list
- Delete middle element of a stack
- Vertical Width of a Binary Tree
- C++ Multi-level inheritance
- Java Collections | Set 7 (LinkedList)
- C++ Function overloading
- C++ complex number addition (operator overloading)
- C++ Template
- Java Exception Handling
- The New Line
- The Size of
- Taking input
- Learn to Comment
- GetLine and Ignore
- Learning to be precise
- Bitwise Operators
- Even Odd
- For Loop- primeCheck
- While loop- printTable
- Learning Macros
- Step by Step Condition
- Start Coding - Java
- The New Line - Java
- Data Types - Java
- Taking input - Java
- Learn to Comment - Java
- nextLine and next
- Precise Format - Java
- logical Operators - Java
- Bitwise Operators - Java
- Even Odd - Java
- For Loop- primeCheck - Java
- While loop- printTable - Java
- Step by Step Condition - Java
- Count Odd Even
- Swap the array elements
- Count the Specials
- Predict the Column
- Xoring and Clearing
- Consonants and Vowels check
- Even Subsets
- Almost Equal
- The Pattern Matcher
- Count Odd Even - Java
- The Pattern Matcher - Java
- Need Some Change - Java
- Almost Equal -Java
- Count the Specials - Java
- Even Subsets - Java
- Matrix Interchange - Java
- Consonants and Vowels check - Java
- Predict the Column - Java
- Xoring and Clearing - Java
- Magic in CPP
- Swap the objects
- Structs and Objects
- Two Dimensional World
- Learning Structs
- Delete Array
- Pair in Java
- Maximum Area Rectangle
- Sum of Big Integers
- BigInteger Multiply
- BigInteger mod
- Find the Frequency
- Back to Front
- Pair Sum in Vector
- Student of the Year
- ArrayList Operation
- Reverse an Array
- Stack Operations
- Queue Operations
- Operations on PriorityQueue
- Get min at pop
- Deque Implementations
- Frequency Game
- Greater and Smaller Ones
- Duplicate Elements
- Multiset Operations
- Multimap Operations
- Pair Sum Existence
- Pair Sum Existence- Revisited
- Using Calendar - Java
- If conditional statement- Python
- Check the status - Python
- Mark Even and Odd - Python
- For loop - Python
- For Loop 2- Python
- While loop in Python
- Jumping through While - Python
- Slicing in String - Python
- Repeat the Strings - Python
- Regular Expressions 2 - Python
- String Functions - II - Python
- String Functions I - Python
- Intro to Dictionary - Python
- Dictionary in Python - II
- Dictionary in Python - III
- Set in Python - I
- Set in Python - II
- Max and Second Max
- Find first set bit
- Rightmost different bit
- Check whether K-th bit is set or not
- Longest Consecutive 1's
- Gray to Binary equivalent
- Modular Multiplicative Inverse
- Swap all odd and even bits
- Wave Array
- Frequencies of Limited Range Array Elements
- Equilibrium Point
- Leaders in an array
- Rotate Array
- Floor in a Sorted Array
- Minimum Number in a sorted rotated array
- Two Repeated Elements
- Roof Top
- Union of Two Sorted Arrays
- Subarray with given sum
- Intersection of two sorted arrays
- Closet 0s 1s and 2s
- Sort by Absolute Difference
- Print adjacency list
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Transpose of Matrix
- Rotate by 90 degree
- Determinant of a Matrix
- Boundary traversal of matrix
- Linear Probing in Hashing
- Quadratic Probing in Hashing
- Anagram
- Subarray with 0 sum
- Winner of an election
- Check if string is rotated by two places
- Strings Rotations of Each Other
- Isomorphic Strings
- The Modified String
- Reverse Words
- Minimum indexed character
- Panagram Checking
- Non Repeating Character
- Parenthesis Checker
- Minimum indexed character
- Evaluation of Postfix Expression
- Generate Binary Numbers
- Minimum Cost of ropes
- N meetings in one room
- Largest number with given sum
- Reach a given score
- Union-Find
- Count number of hops
- Sum of all substrings of a number
- Pattern searching
- First Repeating Element
- Unique Substrings
- Union of Arrays with Duplicates
- Common Elements
- Nth number made of prime digits
- Numbers containing 1, 2 and 3
- Positive Negative Pair
- Pair with largest sum which is less than K in the array
- Two Sum
- Missing in Array
- First Non Repeating Character
- Product array puzzle
- Needle in a Haystack
- Roman Number to Integer
- Compare Version Number
- Top K Frequent Elements in Array - |
- Search an element in sorted and rotated array
- Three Sum Closest
- Intersection of two arrays
- Excel Sheet | Part - 2
- Sort 0s, 1s and 2s
- Paths to reach origin
- Count the pairs with maximum difference
- Sachin's love for runs
- Maximum value
- Find Unique pair in an array with pairs of numbers
- Mean of range in array
- Adding One
- Number of subarrays whose minimum and maximum are same
- Maximize Array Value After Rearrangement
- Find k-th missing element
- Faulty wiring and Bulbs
- Subarrays with given sum
- Equal Sums
- Cumulative frequency of count of each element in an unsorted array
- Buildings receiving sunlight
- Pascal Triangle
- Non-Repeating Element
- Last seen array element
- Sum equals to Sum
- Max value
- Count the elements
- Maximum Gap
- Rotation
- Find the closest number
- Number of pairs with maximum sum
- Sort by Set Bit Count
- Minimum Energy
- Count Increasing Subsequences
- Left or Right Positioned Array
- Pairs which are Divisible by 4
- k sorted array
- Maximum AND Value
- Balance with respect to an array
- Maximize sum after K negations
- Max Length Removal
- Adding Ones
- Pairs with certain difference
- Pairs with Difference less than K
- Equal Point in Sorted Array
- Find Maximum Sum Strictly Increasing Subarray
- Common elements
- Good Pairs
- Number and the Digit Sum
- Split the Array
- First Come First Serve
- Greedy Fox
- Sorted and Rotated Minimum
- Maximum no of 1's row
- Sum of elements between k1'th and k2'th smallest elements
- Next greater number set digits
- Search in a Row-Column sorted matrix
- Move All Zeroes to End
- Remove all duplicates from a given string
- Equal Sum and Product
- Find pairs with given relation
- Min sum formed by digits
- Min Subsets with Consecutive Numbers
- Minimize the sum of product
- Move all negative elements to end
- Unusual String Sort
- String Manipulation
- Chocolate Distribution Problem
- Search in a Rotated Array
- Minimum Steps
- Minimum Distinct Ids
- Count pairs Sum in matrices
- Count the triplets
- Sort the way !
- Punish the Students
- Find Pair Given Difference
- Pairs with difference k
- Largest Permutation
- Maximum Sum Bitonic Subsequence
- Form a Triangle
- Drive the car
- Max sum in sub-arrays
- Next Greater Even Number
- Swap and Maximize
- Sum of length
- Bitonic Point
- Left most and right most index
- Smallest subarray with sum greater than x
- Partition Point in the Array
- Amend The Sentence
- Closest Strings
- Single Number
- Count increasing Subarrays
- Rearrange array such that even positioned are greater than odd
- Alternate positive and negative numbers
- Remove minimum elements
- Check if actual binary representation of a number is palindrome
- Maximum Possible Sum of Products
- 1[0]1 Pattern Count
- Largest Even Number
- Sort the given array after applying the given equation
- Remaining String
- Check if a given string is a rotation of a palindrome
- Closing bracket index
- Check if frequencies can be equal
- Common Subsequence
- Convert a sentence into its equivalent mobile numeric keypad sequence
- Remove b and ac from a given string
- Kth distance
- Palindrome Sentence
- Addition of submatrix
- Check if the number is balanced
- Count Alphabets
- Rearrange a string
- Ordering of strings
- Rearrange string as alternate x and y occurences
- Arya's Long String
- Remove Duplicates
- Reverse alternate words
- Maximum distinct elements after removing K elements
- Same characters in two strings
- Convert the string
- Nearest multiple of 10
- Add two numbers represented by two arrays
- Toppers Of Class
- Reorganize The Array
- Sum of two numbers represented as arrays
- Facing the sun
- Maximum product
- Jumping Caterpillars
- Count Substrings
- Difficulty of sentence
- Twice Counter
- Distinct Substrings
- Word with maximum frequency
- Max Sum without Adjacents
- Swap the closest and farthest digits
- Bitonic Generator Sort
- Second Largest
- Convert array into Zig-Zag fashion
- Two Sum - Pair with Given Sum
- Rotate Bits
- Second most repeated string in a sequence
- Shoot, Reload, Repeat
- Check if array contains contiguous integers with duplicates allowed
- Rearrange an array such that arr[i] = i
- Equal point in a string of brackets
- Length Unsorted Subarray
- Find all pairs with a given sum
- Number of occurrence
- The Even Array
- K-Pangrams
- Reversing the equation
- Find the most frequent digit
- Divisibility by 999
- Divisible by 8
- Does array represent Heap
- Longest common prefix
- C++ Visible Numbers
- Rope Cutting
- The Non-repetitive String
- Modify the Array
- Pair the minimum
- Convert an array to reduced form
- Three consecutive duplicates
- Check if array is sorted
- Consecutive Array Elements
- Sum Pair closest to target
- Count even substrings
- String's Count
- Longest Common Prefix of Strings
- Longest substring with distinct characters
- Largest Fibonacci Subsequence
- Smallest number in one swap
- Find first repeated character
- Prime String
- Numbers with prime frequencies greater than or equal to k
- Palindromic Subsequences
- Cut rope to maximise product
- Product Pair
- Special array reversal
- Even and odd elements at even and odd positions
- String comparison
- Meta Strings
- Min Manipulations to make Strings Anagram
- Min Number of Flips
- Maximum number of characters between any two same character
- Maximum difference Indexes
- Count subsets having distinct even numbers
- Counts Zeros Xor Pairs
- Substrings with same first and last characters
- Count pairs with given sum
- Segregate 0s and 1s
- Absolute distinct count
- Maximum number of zeroes
- Large number division
- Play With OR
- Hungry Pizza Lovers
- Three Great Candidates
- K closest elements
- First element to occur k times
- Fill array with 1's
- Max sum submatrix
- Element with left side smaller and right side greater
- Ishaan and Sticks
- Pick Values
- Find the closest pair from two arrays
- Common Divisor
- Missing element of AP
- Minimum Swaps required to group all 1s together
- The Inverting Factor
- Maximum sum of increasing order elements from n arrays
- Merging two unsorted arrays in sorted order
- Array Subset of another array
- Count the Zeros
- Distinct absolute array elements
- First negative integer in every window of size k
- Length of longest subarray
- Multiply by 11
- Transform the array
- Merge two binary Max heaps
- Sum of Lengths of Non-Overlapping SubArrays
- Maximum value K
- Maximum sum of subarray less than or equal to x
- Sort the pile of cards
- Four Elements
- Palindrome String
- Roll the characters of a String
- Missing ranges of numbers
- Maximum average subarray
- Charul and vessels
- Maximum number of partitions that can be sorted individually to make sorted
- Total count
- Searching in an array where adjacent differ by at most k
- Left out candies
- Palindromic Series
- The Optimal Selection
- Sorting all array elements except one
- Delete array elements which are smaller than next or become smaller
- Lucky Ishaan
- Chocolate Station
- Smallest greater elements in whole array
- Fitting The Array
- Pangram Strings
- K-th missing element
- Pair with given sum in a sorted array
- Pattern Searching
- Count number of words
- Print Bracket Number
- Easy string
- Does robot moves circular
- Divisible by 5 or not
- Divisible by 7
- Balanced string
- Shop in Candy Store
- Minimum changes to make all substrings distinct
- Sort string
- Tom and String
- Minimal moves to form a string
- Decode It
- Odd Even Problem
- Binary representation of next number
- Mr. Binary
- Lucas Number
- Convertible string
- Largest number in one swap
- Generate binary string
- Last Match
- Partition a number into two divisible parts
- Ways to split string such that each partition starts with distinct letter
- Split the string
- Colorful Strings
- Encrypt the string - 2
- Common Subsequence OldP
- Is Binary Number Multiple of 3
- Bitwise OR in a given Range
- Kth LSB
- RegEx matching
- Maximum prefix sum for a given range
- Padovan Sequence
- Replace a word
- Cross character
- Karatsuba Algorithm
- Extract the Number from the String
- Days of Our Lives
- Minimum Operations
- Check if a number is divisible by 8
- Circle and Lattice Points
- Check if divisible by 10
- Adding Array Elements
- Empty The Tank
- Number of 1 Bits
- Find the Highest number
- Check if a Integer is power of 8 or not
- The Nth Fibonnaci
- Armstrong Numbers
- Compute sum of digits in all numbers from 1 to n
- AND operation
- Love For The Twins
- Lucky Number
- Candy Packets
- Perfect XOR
- Pairs with Positive Negative values
- Remove minimum number of elements
- Reverse Bits
- Semi Prime
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Change Bits
- Swap two nibbles in a byte
- Count digits in a factorial
- Copy Set Bits in Range
- Number of factors
- Star elements
- Set all the bits in given range of a number
- Completing tasks
- Product of Prime Factors
- Divisor Product
- Maximum Sum Problem
- High Effort vs Low Effort
- Number of digits
- Generate all palindromic numbers less than n
- Minimum insertions to sort an array
- Minimum number of deletions to make a sorted sequence
- Party of Couples
- Count numbers
- Maximize dot product
- Shortest path from 1 to n
- GCD and Fibonacci Numbers
- Count Odd Factors
- Count binary strings
- Make Number Odd
- Sum of all divisors from 1 to n
- nCr
- Mighty Divisor
- Twisted Prime Number
- Find sum of divisors
- Minimum steps to minimize n as per given condition
- Element in a Sequence
- Sieve of Eratosthenes
- Magic Number
- Count numbers containing 4
- Exponentiation (Set 2)
- Amicable Pair
- Divisible Numbers
- Assign Mice Holes
- Find maximum number
- Faithful Numbers
- N-divisors
- Trail of ones
- The Bit Game
- Largest power of prime
- Swap bits
- Euler Totient Function
- K-Palindrome
- Arrange the Balls
- Happy Number
- Possible Timings
- Withdrawing Money
- Power Set
- Reach the Nth point
- Nearest Perfect Square
- Minimum number of Coins
- Number Of Open Doors
- Number of Groups
- Right most non zero digit
- Number of Days
- Break a number
- Find unit digit in a Product
- Numbers with same first and last digit
- Perfect Numbers
- Pell Number
- Last two digit Fibonacci
- Pair cube count
- Kaprekar Number
- Minimum Cost To Make Two Strings Identical
- Find distinct elements
- Ticket sellers
- Nth item through sum
- Palindrome numbers
- Number Game
- Optimal walk
- Maximum height of the staircase
- Day of the week
- Even Fibonacci Numbers Sum
- Geek and his Binary Strings
- Geek and its Game of Coins
- Count numbers with unit digit K in given range
- Cereals Box
- Incomplete Array
- Kth Prime Factor
- Smallest number with sum of digits as N and divisible by 10^N
- Discovering Atlantis
- Magic numbers
- Recursively find sum of digits
- Repeating GCD
- Modified Fibonacci
- Non Fibonacci Number
- Game of cells
- Adjacents are not allowed
- Maximize Toys
- C++ Exception Handling
- Raju and coins
- Largest number possible
- Page Faults in LRU
- Grouping values
- Cutting Rectangles
- Check if it is possible to survive on Island
- Tricky Sorting Cost
- Letter Writer
- Sum Indexes
- Final Destination
- Maximum Volume of a Rectangular Box
- Recamans sequence
- Number that are not divisible
- Carry counter
- Print this pattern!
- Penalty Shooters
- Count ways to express N as the sum of 1,3 and 4
- Remainder of array multiplication
- Integral Root
- Rectangles in N*N Board
- Squares in N*N Chessboard
- Number of divisors in a given range
- Primorial of a number
- Sum of K Primes
- Compare two fractions
- Print all bitwise subsets of a number N
- Good Numbers
- Deficient Number
- Trailing zeroes in factorial
- Equalize an array in minimum operations
- Find smallest values of x and y
- Find the minimum time
- Form a number divisible by 3 using array digits
- Number of ways to find two numbers
- Odd Game
- Number of compositions of a natural number
- Different Kinds of Objects
- Number of subsets and mean
- Sum of all prime numbers between 1 and N.
- Series GP
- Total number of Strings
- Maximum sum difference
- Product of two digit numbers
- Least Prime Factor
- Natural Sum
- Minimum rotations to unlock a circular lock
- Subtraction and two numbers
- Euler Totient
- Triangular Number
- Count unset bits in a given Range
- Reverse Coding
- Right angled triangles
- BBT counter
- Save Knights
- Smallest number by rearranging digits of a given number
- Subarray with least average
- Seeds of a number
- Find Nth root of M
- The Prime Twins
- Sixy Primes
- Largest Product Pallindrome
- Summing the Sum
- Woodall Number
- Finding Position
- Prime Adjacent
- Money Division
- Prime Factors
- Permutations and Sum
- Circular Prime Number
- Ordered Prime Signature
- Recursive sequence
- Is Square
- Juggler Sequence
- Sum of product of all pairs
- Tom and Jerry
- Increasing Sub Sequence
- Sphenic Number
- Sum of average of all subsets
- Maximum Height Tree
- Required Rooms
- Summed Matrix
- Find n-th Fortunate Number
- Maximum Diamonds
- Convert floating point to natural number
- The Light Problem
- Arithmetic Number
- C++ Matrix Rotation by 180 degree
- Row with minimum number of 1's
- Make Zeroes
- Surround the 1's
- LCS of '0' K Repeated String
- Rotate matrix elements clockwise
- Maximum sum of hour glass
- Maximum Collatz sequence length
- Geek and his Tricky Series
- Count Primes In Range
- Boundary Elements of Matrix
- Coverage of all Zeros in a Binary Matrix
- Exit Point in a Matrix
- Next Prime Palindrome
- Help Ishaan
- Playing with mobile numbers
- Collection of pens
- Damon Prime
- Mysterious Series
- Find the highest occurring digit in prime numbers in a range
- Prime number of set bits
- Next sparse binary number
- Multiply two polynomials
- Trace Path
- Inorder Traversal and BST
- Value of polynomial
- Choose and Swap
- Sequence Fun
- Letters Collection
- Java Collections | Set 6 (Stack)
- Longest Perfect Piece
- Largest zigzag sequence
- Find the Number
- Overlapping rectangles
- Inverted triangle of stars
- Print Pattern
- Y shaped pattern
- Mansi and her series
- Primes sum
- Crack the series
- Print the pattern
- Chicks in a Zoo
- Break Numbers[Duplicate problem]
- Maximum Sum LCM
- K-Ary Tree
- Binary Tree K level sum
- Check if it is possible to convert one string into another with given constraints
- Minimum Exchange
- Earthquake and the Paint Shop
- Count the paths
- Array to BST
- Sum of dependencies in a graph
- Count all possible paths from top left to bottom right
- Ball coloring
- Rearrange Geek and his Classmates
- Modified Numbers and Queries
- Fraction Trouble
- Shortest distance in infinite tree
- Sum of k smallest elements in BST
- Matrix Game - 1
- Print Diagonally
- Find maximum volume of a cuboid
- Gadgets of Doraland
- Plus One
- Reverse Bits
- Sum of two numbers without using arithmetic operators
- Minimum steps to make product equal to one
- Even and Odd
- Search insert position of K in a sorted array
- Queue using stack
- Binary Search in forest
- Largest value in each level
- Maximum number of 2X2 squares
- Max Min
- Count the Substrings
- Min Cost Climbing Stairs
- Find all possible paths from top to bottom
- Split the binary string into substrings with equal number of 0s and 1s
- Smallest Subset with Greater Sum
- Minimum Sum of Absolute Differences of Pairs
- Smallest window containing 0, 1 and 2
- Move Last Element to Front of a Linked List
- Insert an Element at the Bottom of a Stack
- Can Make Triangle
- Matrix Operations
- Find pairs with given sum in doubly linked list
- Arrange the array
- Number of Triangles
- Triangle and Square
- Sort a k sorted doubly linked list
- Choice
- Pattern 1
- Pattern 2
- Pattern 3
- Pattern 4
- Pattern 14
- Pattern 15
- Pattern 16
- Pattern 17
- Pattern 18
- Pattern 19
- Pattern 20
- Pattern 21
- Print N to 1 without loop
- Print GFG n times
- Fibonacci series up to Nth term
- Pattern 12
- Pattern 22
- Largest odd number in string
- Maximum Nesting Depth of the Parentheses
- All divisors of a Number
- Geek Jump
- Find XOR of numbers from L to R.
- Outermost Parentheses
- Maximum Depth Of Binary Tree
- Divisor Game
- Search in Linked List
- Remove duplicates from a sorted doubly linked list
- Assign Cookies
- Introduction to Linked List
- Bit Manipulation
- Introduction to Trees
- Binary Search Trees
- Introduction to Doubly Linked List
- Pass by Reference and Value
- Implementation of Priority Queue using Binary Heap
- Graph and Vertices
- Unique Binary Tree Requirements
- Binary Tree Representation
- Minimize the sum
- Absolute difference divisible by K
- Last modified ball
- Transform to Sum Tree
- Make array elements unique
- Find the Node with maximum GCD of the siblings of a Binary Tree
- Find the first node of loop in linked list
- Maximum Weight Node
- Type it!
- Min operations
- Last cell in a Matrix
- Max Sum without Adjacents
- Count number of free cell
- Balloon Everywhere
- Apple Sequences
- Reverse both parts
- Cutting Rectangles
- Frogs and Jumps
- Leaders in an array
- Make Array Elements Equal
- Equal Left and Right Subarray Sum
- Make the array beautiful
- Remainder on dividing by 11
- Is it Fibonacci
- Taxi Booking
- Max Level Sum in Binary Tree
- Binary matrix having maximum number of 1s
- Number of Subarrays of 0's
- Distinct Difference
- Maximum Identical Bowls
- Bus Conductor
- Wifi Range
- Minimum Number
- Minimum Integer
- Seating Arrangement
- String Mirror
- Powerfull Integer
- Make Palindrome
- Binary Modulo
- Total Cuts
- Bit Magic
- Array Operations
- Dominant Pairs
- Total Traversal Time
- Valuable String
- Ticket Counter
- Unique Number of Occurrences
- Evaluation of Postfix Expression
- Eye's Contact
- Two Smallests in Every Subarray
- Split an array into two equal Sum subarrays
- Largest Pair Sum
- Two Swaps
- Maximize partitions in a String
- Count pairs with given sum
- Count Pairs whose sum is less than target
- Union of Two Sorted Arrays with Distinct Elements
- Intersection of Two arrays with Duplicate Elements
- Find All Triplets with Zero Sum
- Search in a row-wise sorted matrix
- Find Only Repetitive Element from 1 to n-1
- Unique Number I
- Print Linked List elements
- Count Linked List Nodes
- Node at a given index in linked list
- Power of Four
- Delete node in Doubly Linked List
- Size of Binary Tree
- Inorder Traversal
- Count Leaves in Binary Tree
- Check If Circular Linked List
- Postorder Traversal
- Implement Stack using Linked List
- Implement stack using array
- Implement Queue using array
- Doubly linked list Insertion at given position
- Binary Search
- Add two fractions
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Largest product
- Third largest element
- Convert to Roman No
- Preorder Traversal
- Implement strstr
- C++ STL | Set 1 (vector)
- C++ STL | Set 3 (map)
- C++ STL | Set 4 (stack)
- C++ STL | Set 5 (queue)
- Middle Pattern
- Search a node in BST
- Equal Sum and XOR
- C++ STL | Set 7 (unordered map)
- C++ STL | Set 8 (unordered set)
- Smallest divisible number
- Remainder with 7
- HashMap Operations
- TreeMap Operations
- Java Collection | Set 5 (LinkedHash Set)
- Find Number of Numbers
- Operating an array
- Linked List Insertion
- Play with an array
- Minimum element in BST
- Anagram of String
- Circular Linked List Traversal
- Is Linked List Length Even?
- Identical Linked Lists
- Find the Sum of Last N nodes of the Linked List
- Modular Node
- Find n/k th node in Linked list
- Maximum in Struct Array
- Queue Reversal
- Triplet Family
- Sum of Binary Tree
- Insert in Middle of Linked List
- longest substring containing '1'
- Pairwise Consecutive Elements
- Count Non-Leaf Nodes in Tree
- C++ STL Deque
- C++ Classes Introduction
- Mrs. S- JAVA Bits Set 1
- Product of array elements
- C++ Inheritance introduction
- C++ Call by reference
- Java Interface
- Java Generic Class
- Java Collections | Set 9 (Queue)
- Start Coding
- Logical Operators
- Sort and Reverse Vector
- Front to Back
- Stack designer
- Queue Push & Pop
- Sum the common elements
- Parties and seats
- Set Operations
- Map Operations
- Sum Array Puzzle
- Welcome aboard - Python
- Regex - Python
- Sum of diagonals
- Decimal to binary
- Operations on Queue
- Bit Difference
- Number is sparse or not
- Power of 2
- Reverse array in groups
- Search an Element in an array
- Searching an element in a sorted array
- Binary Array Sorting
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Check if a string is Isogram or not
- Binary String
- Check if strings are rotations of each other or not
- Maximum Occuring Character
- Remove common characters and concatenate
- Sum of numbers in string
- Reverse a String
- Union of two arrays
- Keypad typing
- Check if two arrays are equal or not
- Print first n Fibonacci Numbers
- Binary Array Sorting
- C++ Hello World
- How many pizzas ?
- Minimum Product of k Integers
- Maximize sum(arr[i]*i) of an Array
- Merge and Sort
- Rearranging array
- Count number of elements between two given elements in array
- Perfect Array
- Mega Sale
- Find the closest number
- Sandwiched_Vowels
- Professor and Parties
- Minimum move to front operations
- Finding-Pairs
- Searching a number
- Doubling the value
- Count pair sum
- Elements before which no element is bigger
- Ishaan's Internship
- Missing number
- Remove consonants from a string
- Strange Sort - copy
- Friendly Array
- Balanced Array
- Sort the Half Sorted
- Part Sort
- Max Odd Sum
- Permutations in array
- King's War
- Swap and Maximize
- Minimum Difference among K
- Longest Equal Prefix
- Check Arithmetic Progression
- Find duplicates under given constraints
- Ishwar and his proposals
- Type of array
- Sort a String
- Anagram Palindrome
- Sort The Array
- Distinct Elements in a Stream
- Fibonacci in the array
- Make Co-prime Array
- Alternative Sorting
- Check if divisible by 11
- Check if divisible by 4
- Check Binary String
- Change the string
- Remove all characters other than alphabets
- Maximum product of two numbers
- Check for subsequence
- Remove Consecutive Characters
- Compare two Large Numbers
- Confused pappu
- Segregate Even and Odd numbers
- Odd to Even
- Count number of equal pairs in a string
- Stuffs Division
- Sort in specific order
- Form largest number from digits
- Learning Output
- Encrypt the string - 1
- Maximum triplet sum in array
- Rahul lucky-unlucky
- Fighting the darkness
- Sorting Employees
- Count Pairs Odd Xor
- The problem of identical arrays
- Minimize sum of alternate product
- Reverse sub array
- Greater on right side
- Immediate Smaller Element
- Sum of distinct elements
- Count the characters in each word in a given sentence
- Count the characters
- Uncommon characters
- Sum of all sub-sequences of a number
- Quick Left Rotation
- Same frequency in two halves
- Rock Paper Scissors!
- Max-Min conversion
- Shortest direction
- Stable Sort and Position
- Duck Number
- Fake Profile
- Tiger Zinda Hai
- Maximum repeating number
- String Reversal
- A guy with a mental problem
- Remove repeated digits in a given number
- Repeated Character
- Replace the Bit
- Reverse a string with spaces intact
- Index of first 1 in a sorted array of 0s and 1s
- Length of Last word
- Find the Number which contain the digit d
- Missing number in shuffled array
- Product of maximum in first array and minimum in second
- The Penalty Shootout
- Elements in the Range
- Last index of One
- Distinct Adjacent Element
- Making elements distinct
- Floating point number even or odd
- Sort the string in descending order
- Merge two strings
- Message decoding
- Sum of distinct elements for a limited range
- Good String
- Crazy String
- String with numbers at its end
- Countries at war
- Substrings with same first and last characters
- Last duplicate element in a sorted array
- Sum of f(a[i], a[j]) over all pairs in an array of n integers
- Largest Element in Array
- Cyclically rotate an array by one
- Sum Triangle for given array
- Print an array in Pendulum Arrangement
- Inverse Permutation
- Game with nos
- Play With OR
- Why is Melody so chocolaty?
- Tywin's War Strategy
- Digits in a set
- Tracks
- First element to occur k times
- Exceptionally odd
- Ishaan Loves Chocolates
- Jay's Apples
- Wrong Ball
- Rotating an Array
- Total distance travelled in an array
- Product is even or odd?
- Remove Duplicates from unsorted array
- Find Substring from last of the Given String
- Minimum sum of two elements from two arrays
- Even occurring elements
- Find the smallest and second smallest element in an array
- Total count
- Find minimum and maximum element in an array
- Reducing Walls
- Multiply left and right array sum.
- Maximum Perimeter of Triangle from array
- Average Count Array
- Positive and negative elements
- Equalization of an array
- Extract Maximum
- Smallest number repeating K times
- Print first letter of every word in the string
- Extraction of secret message
- Last index of a character in the string
- Good or Bad string
- Perfect Square String
- Perfect Reversible String
- Minimize string value
- Remove character
- Maximum Integer Value
- Demonitisation
- Red OR Green
- Just One Mismatch
- Binary representation of previous number
- Snake Case
- Anagram Strings
- The Muskteers
- Triangle growing downwards
- No of Carry Operations
- Sort the fest
- C++ Basic Data types
- Java Date and Day
- Magical String[Duplicate Problem]
- Factors Sum
- First and last Bit
- Difference between highest and lowest occurrence
- GCD of Array
- Minimum product pair
- Find unique element
- Check set bits
- One's Complement
- XOR of all elements
- The OR Gate
- The AND Gate
- Gray Code
- C++ Nega Bit
- Check an Integer is power of 3 or not
- Check if a number is power of another number
- Even-Odd turn game
- Find position of set bit
- Set kth bit
- Set the rightmost unset bit
- Factor OR Multiple
- Check if divisible by 36
- Odd Divisors
- The XOR Gate
- Midori and chocolates
- Number Series
- Print K smallest elements in their original order
- Maximize OR
- Smallest power of 2 greater than or equal to n
- Sum of Consecutives
- Change all even bits in a number to 0
- Numbers having alternate bits
- XOR Count Zero and One
- XOR play
- Find the fine
- An Easy problem
- Strong Numbers
- Count digits in given number N which divide N
- Set all odd bits
- Nth Even Fibonacci Number
- Check if divisible by 5
- set-bits and number
- Check perfect square
- Rearrange the array
- Check if a number can be expressed as x^y
- Sum of Digits Prime/Non-Prime
- Ceil The Floor
- LCM And GCD
- nth digit of Fibonacci
- LCM of given array elements
- Swap two nibbles in a byte
- Maximum money
- Maximum Area
- Longest increasing subarray
- Shortest un-ordered subarray
- Message Spreading
- Repeated IDs
- Binary Shift to Divide
- Leap Year
- Find the remainder
- Carol Number
- Area of a triangle
- Check perfect square
- Fibonacci to N
- Krishnamurthy number
- Product Sum
- Strong Numbers
- Sort first half in ascending and second half in descending
- Find N-th term in the series
- Maximum weight difference
- Celsius to Fahrenheit Conversion
- Factorial Number
- Factorial
- Toggle bits given range
- Parity of unsigned integer
- Special Odd Series Sum
- Special Series Sum
- Difference series
- Binary number to decimal number
- Check for three consecutive numbers
- Total digits
- Tough Competitors
- Finger Game
- Prime Number
- Absolute Difference of 1
- Adam Number
- Closest Number
- Check squares
- Find The Sequence
- Common Divisors
- Sum of divisors
- Powers game
- Multiples Power
- Angle between hour and minute hand
- Count numbers divisible by M
- Count zero
- Check if the door is open or closed
- Chocolate lengths
- Help Joey
- Find sum of even factors of a number
- Is digital root of N a prime?
- Sum of first n terms
- Tidy Number
- Java 1-d and 2-d Array
- Divide the number
- Jumpy Ball
- Pronic Number
- Square Divisors
- Sum of fifth powers of the first n natural numbers
- G.F Series
- Find the nth number in the sequence
- Count numbers containing 4
- Ways To Tile A Floor
- Spell a Number
- Ladoo problem
- Disarium Number
- Jumping Geek
- Min value of x
- Count Squares
- Matching Pair
- Find X and Y in Linear Equation
- Find the position of M-th item
- Check if the number is Fibonacci
- Middle of Three
- Euler Totient Sum and Divisors
- Check if date is valid
- Difference between sums of odd and even digits
- Anshuman's Favourite Number
- Repeated sum of digits
- Sum of Digit Modified
- Sum of Digits Divisibility
- K-th distinct element
- Product of factors of number
- Mind Game
- Check whether two numbers differ at one bit position only
- Extended Euclidean Algorithm
- Narcissistic number
- Print the Kth Digit
- Trimorphic Number
- Numbers containing 0's from 1 to N
- Unique Numbers
- Find all factorial numbers less than or equal to N
- Find number of days between two given dates
- Height of Heap
- Smallest number with maximum and minimum divisor in an array
- Decimal to Base K conversion
- Prime Palindrome Sum
- Series X1
- The Spider Steps
- Doctors Clinic
- Modulus of two double numbers
- The Modulo Task
- Smallest K digit number divisible by X
- Three distinct factors
- Composite Series
- Number of Integer solutions
- Repetitive Addition Of Digits
- Largest subarray with GCD one
- Binary Addition of 1
- Maximum Handshakes
- Half N by M
- Evaluate the x + a = b statement
- Pairs of prime number
- Pattern Jumping
- Evaluate the expression
- Weird Number
- Perfect Squares in a Range
- Point lies or not
- The amazing number
- Sophie Germain Prime
- Flying Jet
- Corner Digits Sum
- Sum of large numbers
- Rectangle Number
- Sum Terms Nth Row
- Geek's Weight
- String of Commons
- Make a Distinct Digit Array
- Face off Tournament
- Perfect Cubes in a Range
- Minimum difference pair
- Long Long Decimal
- The Lazy Caterer's Problem
- Reading books
- Dull Jack
- The Cycle Game
- Sum of product of x and y with floor(n/x) = y
- Thief trying to escape
- Juggler Sequence
- Squares in a Matrix
- Sums of i-th row and i-th column
- 2's Complement
- Cricket Average
- Multiply 2 matrices
- Sum of primes
- Minimum sum of factors
- Swapping Triangles
- Java Operators(Arithmetic) | Set 1
- Prime number validation-JAVA regex
- Count Sorted Rows
- Left Rotate Matrix K times
- Check if given four points form a square
- Java Collection | Set 3 (HashMap) Part-1
- The Remaining Cake
- Java Iterator
- Interesting Patterns
- Squares Difference
- Pattern-1
- Repeated Sum and then Multiply
- Sorted matrix
- Student record
- C++ | A Speed Breaker
- Base Conversion
- Starting Point
- Java Collection | Set 1 (ArrayList) Part-1
- First and last occurrences of X
- Pattern 5
- Pattern 6
- Pattern 7
- Pattern 8
- Pattern 10
- Pattern 11
- Pattern 13
- Data Type
- Valid Triangle
- Reorder List
- Binary Tree to DLL
- Clone List with Next and Random
- Wildcard Pattern Matching
- Max rectangle
- Subtraction in Linked List
- LRU Cache
- Points in Straight Line
- AVL Tree Insertion
- Partition array to K subsets
- Maximum subset XOR
- Merge two BST 's
- Longest Palindromic Substring in Linear Time
- Alien Dictionary
- Smallest range in K lists
- AVL Tree Deletion
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Maximum Path Sum between 2 Special Nodes
- Huffman Decoding
- Number of Turns in Binary Tree
- String Permutations
- Max Circular Subarray Sum
- Merge Without Extra Space
- Smallest window in a string containing all the characters of another string
- Histogram Max Rectangular Area
- Maximum of minimum for every window size
- Find median in a stream
- Solve the Sudoku
- Strongly connected component (Tarjans's Algo)
- Minimum Cost Path
- Word Ladder I
- Median of 2 Sorted Arrays of Different Sizes
- Burning Tree
- Next Smallest Palindrome
- Count Pairs in an Array
- The Painter's Partition Problem-II
- Form a palindrome
- Distinct palindromic substrings
- Count Smaller elements
- Largest rectangle of 1s with swapping of columns allowed
- Sid and his prime money
- Number of distinct subsequences
- Minimum number to make median X
- Wildcard string matching
- Circle of strings
- Longest repeating and non-overlapping substring
- Sum-string
- Print all LCS sequences
- All numbers with specific difference
- Maximum XOR subset
- Sub-arrays with equal number of occurences
- Minimum Points To Reach Destination
- Doctor Strange
- Minimum sum partition
- Number Formation
- Palindromic Partitioning
- Next Happy Number
- Stock Buy and Sell – Max K Transactions Allowed
- Check Tree Traversal
- Matrix Chain Multiplication
- Strictly Increasing Array
- Bit Difference
- Find Last Digit Of a^b for Large Numbers
- The Palindrome Pattern
- Very Tough Problem
- Nth Natural Number
- Kill Captain America
- Return two prime numbers
- Generalised Fibonacci numbers
- Boolean Parenthesization
- Longest valid Parentheses
- Longest Zig-Zag Sub Sequence
- Bike Racing
- Possible Paths in a Tree
- Word Break - Part 2
- N-Queen Problem
- Brackets in Matrix Chain Multiplication
- Joey doesn't share food
- nCr mod M | Part 1
- Convex Hull
- Phone directory
- Rohan's Love for Matrix
- Queries on a Matrix
- Adventure in a Maze
- Closest Palindrome
- Articulation Point - II
- Optimal binary search tree
- Find the pattern
- Travelling Salesman Problem
- Longest Path in a matrix
- Interesting Queries
- Word Wrap
- Hexadecimal to decimal counter
- Create your own Calculator
- Let's Play!!!
- Nth digit of pi
- Water Connection Problem
- Find the Maximum Flow
- Find minimum s-t cut in a flow network
- Smallest Positive Integer that can not be represented as Sum
- Secret Cipher
- 132 Geeky Buildings
- Corona Vaccine
- Shortest Range In BST
- Elixir of Life
- Number of subsets with product less than k
- Maximum XOR subarray
- Minimum X (xor) A
- Find all Critical Connections in the Graph
- Word Break (Trie)
- Minimum operations to convert array A to B
- Sorted Link List to BST
- Longest Increasing Path in a Matrix
- Palindrome Pairs
- Array Partition
- Count occurrences of a given word in a 2-d array
- Number of distinct words with K maximum contiguous vowels
- Reverse a sublist of a linked list
- Word Ladder II
- Distribute candies in a binary tree
- Search Query Auto Complete
- IPL 2021 - Final
- Split Array Largest Sum
- Find number of closed islands
- Scrambled String
- Shortest Path by Removing K walls
- Count the number of subarrays
- Find the String
- Maximum Number of Toys
- Articulation Point - I
- Kth Smallest Number in Multiplication Table
- Rearrange the array
- Min Chars to Add for Palindrome
- Number of pairs
- Maximum difference between pair in a matrix
- Largest rectangular sub-matrix whose sum is 0
- Minimum swap required to convert binary tree to binary search tree
- Remove Invalid Parentheses
- Minimum time to fulfil all orders
- Maximum number of overlapping Intervals
- Longest Path in a Directed Acyclic Graph
- Cut woods
- Geek in a Maze
- Vertex Cover
- Partition a set into two subsets such that the difference of subset sums is minimum (Set-2)
- Check if all levels of two trees are anagrams or not
- K Centers Problem
- Maximum Triple Product
- Maximum Connected group
- Minimum travel time
- Expression Add Operators
- Burst Balloons
- Minimum Cost to Merge Stones
- Minimize Max Distance to Gas Station
- Count Reverse Pairs
- Candy
- Minimum Window Subsequence
- Account Merge
- Maximum XOR With an Element From Array
- Chocolates Pickup
- Better String
- Count Lucky Permutations
- Count the Substring
- Select Nodes
- Largest Sum Cycle
- Fixing Two swapped nodes of a BST
- Shortest Path Using Atmost One Curved Edge
- Avoid Explosion
- Walls Coloring II
- Redundant Parenthesis
- Partition the Array
- Count Binary Strings With No Consecutive 1s
- Divide in Incremental Groups
- Max min Height
- Maximum Number of coins
- Median of the Subarrays
- Minimum BST Sum Subtree
- Special Digits
- Cake Distribution Problem
- Min Time
- Game Of Subsets
- Geekina Hate 1s
- Making A Large Island
- Meeting Rooms III
- Minimum Weight Cycle
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