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khushavantwagh21
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C++, Java, C, Javascript, Python
Coding Score
1770
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567
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282 points
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282 points
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SCHOOL (2)
BASIC (54)
EASY (186)
MEDIUM (283)
HARD (42)
- Reverse alternate nodes in Link List
- 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
- Detect Loop in linked list
- QuickSort on Doubly Linked List
- Quick Sort
- Bottom View of Binary Tree
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Heap Sort
- Merge two sorted linked lists
- Sum Tree
- Flattening a Linked List
- Diagonal Tree Traversal
- Tree Boundary Traversal
- Directed Graph Cycle
- Undirected Graph Cycle
- Absolute List Sorting
- Two Stacks in an Array
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological sort
- Vertical Tree Traversal
- Merge K sorted linked lists
- Find the number of islands
- Find kth element of spiral matrix
- Get Min from Stack
- Gas Station
- Validate an IP Address
- Remove loop in Linked List
- Interleaved Strings
- Multiply two strings
- Implement Atoi
- Palindrome Linked List
- Closest in BST
- Count distinct elements in every window
- Longest Palindrome in Linked List
- Find triplets with zero sum
- Top View of Binary Tree
- k-th Smallest in BST
- Find Common Nodes in two BSTs
- Polynomial Addition
- Delete nodes greater than k
- Union of Two Linked Lists
- Leftmost and rightmost nodes of binary tree
- Isomorphic Trees
- Predecessor and Successor
- Kth Ancestor in a Tree
- Mother Vertex
- Smallest Positive Missing
- Power Of Numbers
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Maximum Index
- Stock buy and sell
- Rotate Array
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Union of 2 Sorted Arrays
- Indexes of Subarray Sum
- Triplet Sum in Array
- Merge Without Extra Space
- Make Matrix Beautiful
- Boolean Matrix
- Spirally traversing a matrix
- Determinant of a Matrix
- Distance of nearest cell having 1
- Subarray with 0 sum
- Longest Consecutive Subsequence
- Case-specific Sorting of Strings
- Stock span problem
- Next Greater Element
- K Sized Subarray Maximum
- Minimum Platforms
- Black and White
- Minimum Jumps
- Stickler Thief
- Egg Dropping Puzzle
- Optimal Strategy For A Game
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Lucky Numbers
- X Total Shapes
- Zero Sum Subarrays
- Kth Smallest
- Nth Catalan Number
- Maximize The Cut Segments
- Container With Most Water
- Top K Frequent in Array
- Stock Buy and Sell – Multiple Transaction Allowed
- Word Search
- 4 Sum - All Quadruples
- Sort 0s, 1s and 2s
- Complement
- Maximum Sub Array
- Maximum Index
- Flip Bits
- Sum of Middle elements of two sorted arrays
- Count of Subarrays
- Pythagorean Triplet
- Search in Rotated Sorted Array
- Count Full Binary Trees
- Alternate Vowel and Consonant String
- Add Binary Strings
- Maximum Product Subarray
- Check if a string is repetition of its substring of k-length
- Row with max 1s
- Column name from a given column number
- Substrings with K Distinct
- Cutting Binary String
- Sum of two large numbers
- Factorials of large numbers
- k largest elements
- Longest Common Substring
- Smallest distinct window
- Longest substring with distinct characters
- Longest Substring with K Uniques
- Longest Palindrome in a String
- K-th element of two Arrays
- Arranging the array
- Maximize the sum of selected numbers from a sorted array to make it empty
- Longest Palindromic Subsequence
- Build the smallest
- Minimize the Heights II
- First and Last Occurrences
- A difference of values and indexes
- Valid Substring
- Find patterns
- Permutations of a String
- CamelCase Pattern Matching
- Lexicographically smallest string
- Subarrays Product Less than K
- Unique Number II
- Largest prime factor
- 3 Divisors
- Coin Change (Count Ways)
- Santa Banta
- Coin Change (Minimum Coins)
- Perfect Sum Problem
- Power Of 2 and Subsequences
- Kth Smallest Factor
- Shreyansh and his bits
- nCr
- Partition Equal Subset Sum
- Longest Bitonic subsequence
- Array Pair Sum Divisibility Problem
- Magic Triplets
- Fill up buckets
- Matchsticks game
- Unique partitions
- Akku and Binary Numbers
- Stepping Numbers
- LCM Triplet
- Jumping Numbers
- A Game of LCM
- Count even length
- Grouping Of Numbers
- Find the Safe Position
- Missing number in matrix
- Smaller on Left
- Geek and knots
- Filling Bucket
- Longest Repeating Subsequence
- Composite and Prime
- Decode the string
- Stream First Non-repeating
- Maximum Sub-String after at most K changes
- 2D Hopscotch
- Print leaf nodes from preorder traversal of BST
- Longest Perfect Piece
- Geek and Strings
- The Smurfs
- Transitive closure of a Graph
- Replace O's with X's
- Find all distinct subset (or subsequence) sums
- Express as sum of power of natural numbers
- Find the string in grid
- Shortest Source to Destination Path
- Reverse Spiral Form of Matrix
- Geek and Number String
- Save Your Life
- Hamiltonian Path
- Recursively Remove Adjacent Duplicates
- Bellman-Ford
- Prefix match with other strings
- Maximum sum leaf to root path
- Single valued subtree
- BST to max heap
- Anti Diagonal Traversal of Matrix
- IPL 2021 - Match Day 2
- Remove and Reverse
- Find k-th smallest element in given n ranges
- Even Swap
- Reverse a Stack
- Max Equal sum of 3 Stacks
- Smallest sum contiguous subarray
- Minimum Cost to cut a board into squares
- Stack Permutations
- Largest subtree sum in a tree
- Wine Buying and Selling
- Replace every element with the least greater element on its right
- Minimum Swaps
- Construct Binary Tree from String with bracket representation
- Check if all levels of two trees are anagrams or not
- Number of Distinct Islands
- Shortest Distance in a Binary Maze
- Minimum Multiplications to reach End
- Number Of Enclaves
- Alex Travelling
- Number Of Islands
- Merging Details
- Number of Ways to Arrive at Destination
- Shortest path in Directed Acyclic Graph
- Sum of Beauty of All Substrings
- Asteroid Collision
- Aggressive Cows
- Task Scheduler
- Lemonade Change
- Maximum Sum Combination
- Floor in BST
- GCD Array
- Minimize number of Students to be removed
- Maximum Value
- Shortest Prime Path
- Flattening a Linked List
- Absolute difference divisible by K
- Make array elements unique
- Next Greater Element in Circular Array
- Carpet into Box
- Minimum X (xor) A
- Geeks And The String
- Find the longest string
- Maximum Profit By Choosing A Subset Of Intervals
- Max Sum without Adjacents
- BST Downward Traversal
- Count number of free cell
- Apple Sequences
- Connect Nodes at Same Level
- Unique Paths in a Grid
- Valid Compressed String
- Optimal Array
- Best Node
- Maximum Intersecting Lines
- String rp or pr
- Knight in Geekland
- Shy Geek
- Count Special Numbers
- Minimum Steps Required
- Maximum Triplet product
- Second smallest number
- Special Palindrome Substrings
- Maximum Possible Value
- Distinct Difference
- Anagrams in Linked List
- Yet another query problem
- Geek hates too many 1s
- Maximum Length
- Remove the balls
- Unequal Arrays
- Job Sequencing Problem
- Smaller Sum
- Shortest XY distance in Grid
- BST Maximum Difference
- Find Number
- Max Coins
- Subtree In N-ary Tree
- 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
- Minimize Top Speed
- Maximum Score of Array
- String Constraints
- Reverse a linked list
- Pairwise swap elements of a linked list
- Delete nodes having greater value on right
- Remove duplicates from an unsorted linked list
- Inorder Traversal
- Bubble Sort
- Check for BST
- Right View of Binary Tree
- Mirror Tree
- Delete without head pointer
- Height of Binary Tree
- Balanced Tree Check
- Kth from End of Linked List
- Middle of a Linked List
- Check If Circular Linked List
- Left View of Binary Tree
- Find Transition Point
- Remove Duplicates from a Sorted Linked List
- Stack using two queues
- Level Order in spiral form
- DFS of Graph
- Stack using Linked List
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Square Root
- Nodes without a Sibling
- Lowest Common Ancestor in a BST
- Binary Search
- Remove Duplicates Sorted Array
- Binary Tree to BST
- Unique rows in boolean matrix
- Third largest element
- Delete in a Singly Linked List
- Kth largest element in BST
- Minimum distance in an Array
- Array Duplicates
- Three way partitioning
- Level order traversal
- Inorder Successor in BST
- Insert in a Sorted List
- Reverse Using Stack
- Next Right Node
- Find length of Loop
- Median of BST
- Leaf under budget
- Queue Reversal
- Delete Mid of a Stack
- Frequency in Queue
- Frequency Game
- First Set Bit
- Power of 2
- Wave Array
- Frequencies in a Limited Array
- Equilibrium Point
- Array Leaders
- Floor in a Sorted Array
- Print adjacency list
- Transpose of Matrix
- Matrix Boundary Traversal
- Anagram
- String Rotated by 2 Places
- Strings Rotations of Each Other
- Isomorphic Strings
- Reverse Words
- Minimum indexed character
- Non Repeating Character
- Parenthesis Checker
- Minimum Cost of ropes
- N meetings in one room
- Count number of hops
- First Repeating Element
- Union of Arrays with Duplicates
- Check Equal Arrays
- Missing in Array
- Product array puzzle
- Roman Number to Integer
- Intersection of Arrays with Distinct
- Max Value Permutation
- Missing And Repeating
- Find Kth Rotation
- Adding Ones
- Common in 3 Sorted Arrays
- Chocolate Distribution Problem
- Count the triplets
- Find Pair Given Difference
- Alternate Positive Negative
- 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
- Reversing the equation
- Convert an array to reduced form
- Check if array is sorted
- Longest Common Prefix of Strings
- First Repeated Character
- Two sum -Pairs with 0 Sum
- Play With OR
- At Least K Occurrences
- Element with left side smaller and right side greater
- Find the closest pair from two arrays
- Palindrome String
- Fitting The Array
- Balanced string
- Is Binary Number Multiple of 3
- Divisibility by 8
- Number of 1 Bits
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Copy Set Bits in Range
- Count Digits
- Maximum Sum Problem
- The Bit Game
- Number Of Open Doors
- Break a number
- Perfect Numbers
- Smallest number with sum of digits as N and divisible by 10^N
- Largest number possible
- Least Prime Factor
- Sum of First N Natural Numbers
- Maximum Diamonds
- Surround the 1's
- Trace Path
- Sequence Fun
- Primes sum
- Print the pattern
- Maximum Sum LCM
- Check if it is possible to convert one string into another with given constraints
- Minimum Exchange
- Earthquake and the Paint Shop
- Count all possible paths from top left to bottom right
- Ball coloring
- Sum of k smallest elements in BST
- Print Diagonally
- Maximum number of 2X2 squares
- License Key Formatting
- Count the Substrings
- 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
- Find pairs with given sum in doubly linked list
- Maximum Depth Of Binary Tree
- Minimize the sum
- Last modified ball
- Transform to Sum Tree
- Parent of Max GCD Siblings in a Binary Tree
- Find the first node of loop in linked list
- Maximum Weight Node
- Type it!
- Min operations
- Balloon Everywhere
- Reverse both parts
- Cutting Rectangles
- Frogs and Jumps
- 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
- Maximum Identical Bowls
- Wifi Range
- Minimum Number
- Minimum Integer
- Seating Arrangement
- String Mirror
- Powerfull Integer
- Make Palindrome
- Binary Modulo
- Total Cuts
- Bit Magic
- Dominant Pairs
- Total Traversal Time
- Ticket Counter
- Unique Number of Occurrences
- Unique Positions
- Unleashing the Array's Potential
- Organic Tree
- High Frequency
- Linked List Group Reverse
- Reorder List
- Binary Tree to DLL
- AVL Tree Deletion
- Nodes at given distance in binary tree
- Max Path Sum 2 Special Nodes
- String Permutations
- Trapping Rain Water
- Max Circular Subarray Sum
- Smallest window containing all characters of another string
- Solve the Sudoku
- Next Smallest Palindrome
- Longest Prefix Suffix
- Number of distinct subsequences
- Wildcard string matching
- Edit Distance
- Minimum sum partition
- Number Formation
- Next Happy Number
- Phone directory
- Count occurrences of a given word in a 2-d array
- Distribute candies in a binary tree
- Split Array Largest Sum
- Find number of closed islands
- Shortest Path by Removing K walls
- Maximum Number of Toys
- Articulation Point - I
- Largest rectangular sub-matrix whose sum is 0
- Minimum time to fulfil all orders
- Expression Add Operators
- MaxSkill
- Count Lucky Permutations
- Redundant Parenthesis
- Partition the Array
- Divide in Incremental Groups
- Maximum Number of coins
- Median of the Subarrays
- Minimum BST Sum Subtree
- Special Digits
- Min Time
- Long Drive
- Geek's Journey
- Print Linked List
- Count Linked List Nodes
- Check for Binary String
- Count Leaves in Binary Tree
- Postorder Traversal
- Implement stack using array
- Queue Using Array
- Print number pattern
- Preorder Traversal
- First Occurence
- Sum Except First and Last
- Palindromic Array
- Peak element
- Linked List Insertion At End
- Minimum element in BST
- Identical Linked Lists
- Insert in Middle of Linked List
- Alternates in an Array
- Print 1 To N Without Loop
- Reverse array in groups
- Array Search
- Sorted Array Search
- Binary String
- Most Frequent Character
- Sum of numbers in string
- Reverse a String
- First n Fibonacci
- C++ Hello World
- Sum of Array
- Sum of Natural Numbers
- Searching in an Array
- Sort The Array
- Value equal to index value
- Immediate Smaller Element
- Uncommon characters
- Repeated Character
- Find element at a given Index
- Largest Element in Array
- Rotate Array by One
- Game with nos
- Exceptionally odd
- Array Subset
- Rotating an Array
- Count of smaller elements
- First and Second Smallests
- Min and Max in Array
- LCM And GCD
- Median of an Array
- Factorial
- Prime Number
- Closest Number
- Count Squares
- Product of factors of number
- Max Min
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