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215 submissions in current year
SCHOOL (6)
BASIC (51)
EASY (350)
MEDIUM (476)
HARD (160)
- 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
- 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
- Sum Tree
- Construct Binary Tree from Parent Array
- Tree Boundary Traversal
- Directed Graph Cycle
- Undirected Graph Cycle
- Min distance between two given nodes of a Binary Tree
- Absolute List Sorting
- Max sum path in two arrays
- The Celebrity Problem
- Topological sort
- 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
- Kth element in Matrix
- Is Binary Tree Heap
- Validate an IP Address
- Remove loop in Linked List
- Dijkstra Algorithm
- Distinct occurrences
- Additive sequence
- Largest BST
- Sorted subsequence of size 3
- Multiply two strings
- Minimum Swaps to Sort
- Implement Atoi
- Maximum Difference
- Palindrome Linked List
- Rat in a Maze Problem - I
- Find the Closest Element in BST
- BST with Dead End
- Merge two BST 's
- Root to leaf paths sum
- Bridge edge in a graph
- Find triplets with zero sum
- Duplicate subtree in Binary Tree
- k-th Smallest in BST
- Peak element
- 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
- Populate Inorder Successor for all nodes
- XOR Linked List
- Counting elements in two arrays
- Linked List that is Sorted Alternatingly
- K Sum Paths
- Leftmost and rightmost nodes of binary tree
- Construct Tree from Inorder & Preorder
- Arrange Consonants and Vowels
- Count the nodes at distance K from leaf
- Vertical sum
- Insert in Sorted way in a Sorted DLL
- Check if Tree is Isomorphic
- Maximum path sum from any node
- Predecessor and Successor
- Check for Children Sum Property in a Binary Tree
- Diagonal sum in binary tree
- Deletion and Reverse in Circular Linked List
- Duplicate Subtrees
- Sum of nodes on the longest path
- Kth Ancestor in a Tree
- ZigZag Tree Traversal
- Vertical Width of a Binary Tree
- Maximum sum of Non-adjacent nodes
- Mother Vertex
- Gray to Binary equivalent
- Smallest Positive Missing Number
- Power Of Numbers
- Maximum occured integer
- 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
- Union of Two Sorted Arrays
- Indexes of Subarray Sum
- Count the number of possible triangles
- Number of pairs
- 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
- 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
- K Sized Subarray Maximum
- Nearly sorted
- Activity Selection
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Largest number in K swaps
- Black and White
- Minimum Jumps
- Detect Cycle using DSU
- Stickler Thief
- Ways to Reach the n'th Stair
- Optimal Strategy For A Game
- Sum of all substrings of a number
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Lucky Numbers
- Sort an array according to the other
- Allocate Minimum Pages
- Preorder to PostOrder
- Zero Sum Subarrays
- Kth Smallest
- Implement Trie
- Shortest Common Supersequence
- Nth catalan number
- Rotten Oranges
- Maximize The Cut Segments
- Container With Most Water
- Print Anagrams Together
- Rotate by 90 degree
- Closest Three Sum
- Word Break
- Stock buy and sell II
- Word Search
- Find All Four Sum Numbers
- Sort 0s, 1s and 2s
- Paths to reach origin
- Missing And Repeating
- Complement
- Maximum Sub Array
- Pascal Triangle
- Maximum Index
- Number of subarrays with maximum values in given range
- Flip Bits
- Top k numbers in a stream
- Longest Span in two Binary Arrays
- Sum of Middle elements of two sorted arrays
- Consecutive 1's not allowed
- Find the element that appears once
- Pythagorean Triplet
- Painting the Fence
- Search in Rotated Sorted Array
- Sum of bit differences
- Count the Number of Full Binary Trees
- Largest Number formed from an Array
- Alternate Vowel and Consonant String
- Add Binary Strings
- 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
- Swapping pairs make sum equal
- Check if frequencies can be equal
- Column name from a given column number
- Substrings with K Distinct
- Palindrome SubStrings
- Form a palindrome
- Nuts and Bolts Problem
- Longest Subarray with Sum K
- Cutting Binary String
- Search Pattern (KMP-Algorithm)
- Shuffle integers
- Find the N-th character
- k largest elements
- Sum of XOR of all pairs
- Find missing in second array
- Longest Common Substring
- Smallest distinct window
- Longest K unique characters substring
- Longest Palindrome in a String
- Look and Say Pattern
- K-th element of two Arrays
- Arranging the array
- Rod Cutting
- K closest elements
- Missing element of AP
- LCS of three strings
- Longest Palindromic Subsequence
- Largest Sum Subarray of Size at least K
- Equalize the Towers
- Minimum sum
- Not a subset sum
- Build the smallest
- Minimize the Heights II
- Transform to prime
- First and last occurrences of x
- Minimum Deletions
- A difference of values and indexes
- Print N-bit binary numbers having more 1s than 0s
- Permutations of a String
- Number following a pattern
- CamelCase Pattern Matching
- Sum of Products
- Count the subarrays having product less than k
- Unique Number II
- Bleak Numbers
- Modular Exponentiation for large numbers
- Game of XOR
- Largest prime factor
- 3 Divisors
- Maximum Tip Calculator
- Modified Game of Nim
- 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
- Santa Banta
- String Subsequence
- Mobile numeric keypad
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Dice throw
- Perfect Sum Problem
- Fibonacci Sum
- Smallest number
- Shreyansh and his bits
- Longest subsequence-1
- Power Set
- Count ways to N'th Stair(Order does not matter)
- Knapsack with Duplicate Items
- nCr
- Geek and its Game of Coins
- Minimum steps to destination
- Partition Equal Subset Sum
- Longest Bitonic subsequence
- Count possible ways to construct buildings
- Count digit groupings of a number
- Array Pair Sum Divisibility Problem
- Matchsticks game
- Prime Pair with Target Sum
- Akku and Binary Numbers
- Number of paths
- Nth Natural Number
- Number of paths in a matrix with k coins
- A Game of LCM
- Game with String
- Count even length
- Smith Number
- Next Permutation
- Missing number in matrix
- Maximum sum of hour glass
- How Many X's?
- Longest Repeating Subsequence
- Longest alternating subsequence
- Left Rotate Matrix K times
- Decode the string
- Total Decoding Messages
- First non-repeating character in a stream
- Check If two Line segments Intersect
- 2D Hopscotch
- Print leaf nodes from preorder traversal of BST
- Number of Rectangles in a Circle
- Largest square formed in a matrix
- Integral Points Inside Triangle
- Transitive closure of a Graph
- Replace O's with X's
- Two numbers with odd occurrences
- Check Mirror in N-ary tree
- Express as sum of power of natural numbers
- Count all Possible Path
- Find the string in grid
- Count the paths
- Floyd Warshall
- Flood fill Algorithm
- Techfest and the Queue
- Largest subsquare surrounded by X
- Shortest Source to Destination Path
- Divisibility tree
- Police and Thieves
- Subset Sum Problem
- Search Pattern (Rabin-Karp Algorithm)
- All Palindromic Partitions
- Bellman-Ford
- Subarrays with sum K
- Coin Piles
- Remove K Digits
- Substrings of length k with k-1 distinct elements
- Maximum XOR of two numbers in an array
- Construct list using given q XOR queries
- Prefix match with other strings
- Find duplicate rows in a binary matrix
- Single valued subtree
- Find rectangle with corners as 1
- Paths from root with a specified sum
- Shortest Prime Path
- Insertion Sort for Singly Linked List
- Remove all occurences of duplicates in a linked list
- Minimize the Heights I
- Anti Diagonal Traversal of Matrix
- Unique Number III
- All Unique Permutations of an array
- Course Schedule
- Clone an Undirected Graph
- Min Cost Climbing Stairs
- Overlapping Intervals
- Buy and Sell a Share at most twice
- Find k-th smallest element in given n ranges
- Reverse a Stack
- Maximum product subset of an array
- K-th Largest Sum Contiguous Subarray
- Maximum Meetings in One Room
- Find Maximum Equal sum of Three Stacks
- Buy Maximum Stocks if i stocks can be bought on i-th day
- Exactly one swap
- Find shortest safe route in a matrix
- Largest subtree sum in a tree
- Wine Buying and Selling
- Is it a tree ?
- Construct Binary Tree from String with bracket representation
- Minimum Multiplications to reach End
- Number Of Enclaves
- Eventual Safe States
- City With the Smallest Number of Neighbors at a Threshold Distance
- Alex Travelling
- Path With Minimum Effort
- Shortest path in Undirected Graph
- Shortest path in Directed Acyclic Graph
- Majority Element II
- Koko Eating Bananas
- Longest subarray with Atmost two distinct integers
- Asteroid Collision
- Minimal Cost
- Aggressive Cows
- Smallest Divisor
- Combination Sum II
- Shortest Path in Weighted undirected graph
- Task Scheduler
- Hands of Straights
- Minimum Absolute Difference In BST
- Lemonade Change
- Maximum Sum Combination
- Non-overlapping Intervals
- Stickler Thief II
- Insert Interval
- Longest String Chain
- Partitions with Given Difference
- Floor in BST
- 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
- Count Cyclic Paths
- Second smallest number
- Special Palindrome Substrings
- 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
- 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
- Remove the balls
- Fraction pairs with sum 1
- Cursed Binary Tree
- Value of All Subarrays
- Empty the String
- Shortest Subarray with Sum K
- Shy Geek
- New Year Resolution
- Grinding Geek
- Flatten BST to sorted list
- Minimize the Difference
- Pairs violating the BST property
- Kth common ancestor in BST
- Best Price
- Maximise expression
- Geek's birthday party - II
- 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
- House Robber 4
- 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
- Tree Transformation
- Lexicographically Largest String After K Deletions
- Group Balls by Sequence
- 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
- Detect Loop in linked list
- Remove duplicates from an unsorted linked list
- Sorted insert for circular linked list
- Delete node in Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- Check for BST
- Right View of Binary Tree
- K distance from root
- Mirror 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
- Intersection of two sorted Linked lists
- Find Transition Point
- Remove duplicate element from sorted Linked List
- Level Order in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Insert a node in a BST
- BFS of graph
- Determine if Two Trees are Identical
- Root to leaf path sum
- Square root of a number
- Print all nodes that don't have sibling
- Lowest Common Ancestor in a BST
- Implement two stacks in an array
- Largest subarray of 0's and 1's
- Remove duplicate elements from sorted Array
- Largest subarray with 0 sum
- Remove duplicates in array
- Binary Tree to BST
- Unique rows in boolean matrix
- Remove every kth node
- Check if all leaves are at same level
- Multiply two linked lists
- You and your books
- Max distance between same elements
- Print matrix in diagonal pattern
- 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
- Special Stack
- Three way partitioning
- Find Common Nodes in two BSTs
- Level order traversal
- Inorder Successor in BST
- Index of an Extra Element
- Union of Two Linked Lists
- Insert in a Sorted List
- Split Linked List Alternatingly
- Sum of leaf nodes in BST
- Count More than n/k Occurences
- Symmetric Tree
- Delete Alternate Nodes
- Find the Sum of Last N nodes of the Linked List
- Count Pairs whose sum is equal to X
- Find length of Loop
- Median of BST
- Normal BST to Balanced BST
- Leaf under budget
- Linked List Matrix
- Reverse First K elements of Queue
- Remove Half Nodes
- Closest Neighbour in BST
- Brothers From Different Roots
- Delete middle element of a stack
- Swap the array elements
- Predict the Column
- Xoring and Clearing
- Reverse an Array
- Queue Operations
- Frequency Game
- Find first set bit
- Rightmost different bit
- Check whether K-th bit is set or not
- Wave Array
- Frequencies of Limited Range Array Elements
- Equilibrium Point
- Leaders in an array
- Rotate Array
- Floor in a Sorted Array
- Roof Top
- Subarray with given sum
- 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
- Anagram
- Subarray with 0 sum
- Winner of an election
- Check if string is rotated by two places
- Strings Rotations of Each Other
- Isomorphic Strings
- Reverse Words
- Minimum indexed character
- Panagram Checking
- Non Repeating Character
- Parenthesis Checker
- Minimum Cost of ropes
- N meetings in one room
- Reach a given score
- Count ways to N'th Stair
- Count number of hops
- First Repeating Element
- Union of Arrays with Duplicates
- Missing in Array
- Product array puzzle
- Roman Number to Integer
- Top K Frequent Elements in Array - |
- Sort an array of 0s, 1s and 2s
- Maximize Array Value After Rearrangement
- Pascal Triangle
- Non-Repeating Element
- Count the elements
- Find the closest number
- Adding Ones
- Common elements
- Find the element that appears once in sorted array
- Split the Array
- Sorted and Rotated Minimum
- Maximum no of 1's row
- Search in a Row-Column sorted matrix
- Move All Zeroes to End
- Remove all duplicates from a given string
- Min sum formed by digits
- Minimize the sum of product
- Chocolate Distribution Problem
- Search in a Rotated Array
- Count pairs Sum in matrices
- Count the triplets
- Find Pair Given Difference
- Pairs with difference k
- Swap and Maximize
- Bitonic Point
- Smallest subarray with sum greater than x
- Single Number
- Alternate positive and negative numbers
- Check if actual binary representation of a number is palindrome
- Remaining String
- Convert a sentence into its equivalent mobile numeric keypad sequence
- Kth distance
- Palindrome Sentence
- Remove Duplicates
- Nearest multiple of 10
- Reorganize The Array
- Facing the sun
- Max Sum without Adjacents
- Second Largest
- Convert array into Zig-Zag fashion
- Two Sum - Pair with Given Sum
- Rotate Bits
- Second most repeated string in a sequence
- Find all pairs with a given sum
- Number of occurrence
- K-Pangrams
- Reversing the equation
- Does array represent Heap
- Modify the Array
- Convert an array to reduced form
- Sum Pair closest to target
- String's Count
- Longest Common Prefix of Strings
- Longest substring with distinct characters
- Find first repeated character
- Substrings with same first and last characters
- Count pairs with given sum
- Segregate 0s and 1s
- Play With OR
- First element to occur k times
- Find the closest pair from two arrays
- Array Subset of another array
- Palindrome String
- Total count
- Pair with given sum in a sorted array
- Print Bracket Number
- Balanced string
- Odd Even Problem
- Binary representation of next number
- Is Binary Number Multiple of 3
- Padovan Sequence
- Extract the Number from the String
- Minimum Operations
- Check if a number is divisible by 8
- Number of 1 Bits
- Find the Highest number
- Armstrong Numbers
- Reverse Bits
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Swap two nibbles in a byte
- Copy Set Bits in Range
- Maximum Sum Problem
- Party of Couples
- Maximize dot product
- Shortest path from 1 to n
- Sum of all divisors from 1 to n
- Count numbers containing 4
- Trail of ones
- K-Palindrome
- Reach the Nth point
- Break a number
- Perfect Numbers
- Minimum Cost To Make Two Strings Identical
- Maximum height of the staircase
- Within The Range
- The Game
- Non-Palindromes
- Count Prime Factors
- Complete String
- Make Strings Anagrams
- Maximize Toys
- Largest number possible
- Recamans sequence
- Compare two fractions
- Form a number divisible by 3 using array digits
- Least Prime Factor
- Triangular Number
- Reverse Coding
- Recursive sequence
- Juggler Sequence
- Summed Matrix
- Maximum Diamonds
- Arithmetic Number
- Row with minimum number of 1's
- Surround the 1's
- Coverage of all Zeros in a Binary Matrix
- Exit Point in a Matrix
- Trace Path
- Inorder Traversal and BST
- Letters Collection
- Print Pattern
- Print the pattern
- Check if it is possible to convert one string into another with given constraints
- Array to BST
- Sum of dependencies in a graph
- Find maximum volume of a cuboid
- Smallest window containing 0, 1 and 2
- Insert an Element at the Bottom of a Stack
- Sort a k sorted doubly linked list
- Fibonacci series up to Nth term
- Stock Buy and Sell – Max one Transaction Allowed
- Maximum Depth Of Binary Tree
- Divisor Game
- Total Cuts
- Geek and Balls
- Find the final array
- Minimize the number
- Bit Magic
- Split Employees
- 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
- Is it Fibonacci
- High Frequency
- Last cell in a Matrix
- Max Sum without Adjacents
- Count number of free cell
- Balloon Everywhere
- Apple Sequences
- Juggling
- Min Jump
- Range OR
- Reverse both parts
- Cutting Rectangles
- Make the array beautiful
- Is it Fibonacci
- Nice Array
- Max Level Sum in Binary Tree
- Maximum Identical Bowls
- Bus Conductor
- Wifi Range
- Minimum Number
- Seating Arrangement
- String Mirror
- Powerfull Integer
- Make Palindrome
- Binary Modulo
- Total Cuts
- Bit Magic
- Array Operations
- Dominant Pairs
- Total Traversal Time
- Min Index
- Ticket Counter
- Geek's Plants
- Hard Game
- Unique Number of Occurrences
- Separate Stone
- GCD 1
- Lower Case to Upper Case
- Weird Island
- Construction of a string
- Virus Infection
- Find Bots on Geeklandster
- Is it a Leap Year
- Negative Prefix
- Build Adjacency List
- Candy shop I
- Minimum Distance
- Count Indices
- Min Query
- Magic Array
- Not a palindromic string
- Chocolate Distribution
- Two Smallests in Every Subarray
- Split an array into two equal Sum subarrays
- Largest Pair Sum
- Validate distribution
- Find Smallest
- Max Splits
- Two Swaps
- Maximize partitions in a String
- Count pairs with given sum
- Make Perfect Array
- 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
- Min AND
- Virus Infection
- MAX Array
- Maximum Happiness
- Minimize Array Score
- Unique Number I
- Reorder List
- Binary Tree to DLL
- Clone List with Next and Random
- Wildcard Pattern Matching
- Max rectangle
- Subtraction in Linked List
- LRU Cache
- Box Stacking
- 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
- Pattern Search
- 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)
- Allocate minimum number of pages
- 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
- Longest Prefix Suffix
- Number of distinct subsequences
- Wildcard string matching
- Circle of strings
- Longest repeating and non-overlapping substring
- Sum-string
- Print all LCS sequences
- Sub-arrays with equal number of occurences
- Edit Distance
- Minimum Points To Reach Destination
- 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
- Median in a row-wise sorted Matrix
- The Palindrome Pattern
- Nth Natural Number
- Return two prime numbers
- Generalised Fibonacci numbers
- Boolean Parenthesization
- Longest valid Parentheses
- Bike Racing
- Possible Paths in a Tree
- Word Break - Part 2
- N-Queen Problem
- Brackets in Matrix Chain Multiplication
- nCr mod M | Part 1
- Convex Hull
- Phone directory
- Rohan's Love for Matrix
- Adventure in a Maze
- Closest Palindrome
- Articulation Point - II
- Longest Path in a matrix
- Word Wrap
- Let's Play!!!
- Huffman Encoding
- Water Connection Problem
- Find the Maximum Flow
- Smallest Positive Integer that can not be represented as Sum
- Secret Cipher
- 132 Geeky Buildings
- Corona Vaccine
- Elixir of Life
- Find all possible palindromic partitions of a String
- 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
- Count occurrences of a given word in a 2-d array
- 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
- Min Chars to Add for Palindrome
- 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
- Vertex Cover
- Check if all levels of two trees are anagrams or not
- Maximum Connected group
- Expression Add Operators
- Burst Balloons
- Minimize Max Distance to Gas Station
- Candy
- Geek's favourite elements
- Account Merge
- 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
- 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
- Secret Cipher
- Making A Large Island
- Two maximum
- Splitting Edges
- Meeting Rooms III
- Friendly Neighborhood
- Minimum Weight Cycle
- Count Linked List Nodes
- Implement Stack using Linked List
- Implement stack using array
- Binary Search
- Replace all 0's with 5
- Third largest element
- Implement strstr
- Linked List Insertion
- Minimum element in BST
- Is Linked List Length Even?
- Identical Linked Lists
- Queue Reversal
- Triplet Family
- Power of 2
- Reverse array in groups
- Search an Element in an array
- Searching an element in a sorted array
- Binary Array Sorting
- Check if strings are rotations of each other or not
- Reverse a String
- Union of two arrays
- Check if two arrays are equal or not
- Print first n Fibonacci Numbers
- C++ Hello World
- Maximize sum(arr[i]*i) of an Array
- Swap and Maximize
- Anagram Palindrome
- Alternative Sorting
- Remove Consecutive Characters
- Uncommon characters
- Convert array into Zig-Zag fashion
- Repeated Character
- Merge two strings
- Largest Element in Array
- Cyclically rotate an array by one
- First element to occur k times
- Rotating an Array
- Find the smallest and second smallest element in an array
- Find minimum and maximum element in an array
- Prime Number
- Closest Number
- Function With No Arguments
- Function With Arguments
- Function With Return Value
- For Loop - 1
- Print the Kth Digit
- Small Sum
- Naughty Geek
- Friend of x
- Naughty Geek
- Valid Strings
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