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ganesh227
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C++, Python, Java
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BASIC (18)
EASY (89)
MEDIUM (122)
HARD (18)
- Longest Even Length Substring
- Sorting Elements of an Array by Frequency
- Detect Loop in linked list
- Quick Sort on Linked List
- QuickSort on Doubly Linked List
- Check for BST
- Quick Sort
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection in Y Shaped Lists
- Heap Sort
- Merge two sorted linked lists
- Connect Nodes of Levels
- Flattening a Linked List
- Stack using Queue
- Directed Graph Cycle
- Largest subarray with 0 sum
- Topological Sort
- Vertical Tree Traversal
- Generate IP Addresses
- Remove loop in Linked List
- Dijkstra Algorithm
- Minimum Swaps to Sort
- Implement Atoi
- Palindrome Linked List
- Count distinct elements in every window
- Find triplets with zero sum
- Top View of Binary Tree
- Level order traversal
- Ancestors in Binary Tree
- Root to Leaf Paths
- XOR Linked List
- ZigZag Tree Traversal
- Min Heap implementation
- Count set bits
- Smallest Positive Missing
- Rearrange an array with O(1) extra space
- Kadane's Algorithm
- Two Repeated Elements
- Indexes of Subarray Sum
- Triplet Sum in Array
- Spirally traversing a matrix
- Longest Consecutive Subsequence
- Kth smallest element
- Minimum Cost of ropes
- Find median in a stream
- Activity Selection
- Job Sequencing Problem
- Longest Increasing Subsequence
- Longest Common Subsequence
- Sort according to an Array
- Zero Sum Subarrays
- Implement Trie
- Maximize The Cut Segments
- Word Break
- Word Search
- 4 Sum - All Quadruples
- Sort 0s, 1s and 2s
- Count Occurences of Anagrams
- Single Among Doubles
- Swapping pairs make sum equal
- Column name from a given column number
- Sum of two large numbers
- Length of the longest substring
- k largest elements
- Longest Substring with K Uniques
- String formation from substring
- Maximize the sum of selected numbers from a sorted array to make it empty
- Minimize the Heights II
- CamelCase Pattern Matching
- Lexicographically smallest string
- Unique Number II
- Bleak Numbers
- Angle between hour and minute hand
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Ways To Tile A Floor
- String Subsequence
- Gold Mine Problem
- Shreyansh and his bits
- Power Set
- nCr
- Maximum path sum in matrix
- Partition Equal Subset Sum
- Fill up buckets
- Unique partitions
- Nth Natural Number
- Choose and Swap
- Find the Safe Position
- Smaller on Left
- Filling Bucket
- Composite and Prime
- Decode the string
- Total Decoding Messages
- Maximum Sub-String after at most K changes
- Check If two Line segments Intersect
- 2D Hopscotch
- Geek and Strings
- Two odd Occuring
- Find all distinct subset (or subsequence) sums
- Queries on a Matrix
- Geek and Number String
- Save Your Life
- Hamiltonian Path
- Recursively Remove Adjacent Duplicates
- Substrings of length k with k-1 distinct elements
- BST to max heap
- Flatten binary tree to linked list
- IPL 2021 - Match Day 2
- Enemy
- Smallest sum contiguous subarray
- Validate Stack Operations
- Replace every element with the least greater element on its right
- Minimum Swaps
- Number of Distinct Islands
- Shortest Distance in a Binary Maze
- Number Of Islands
- Number of Ways to Arrive at Destination
- GCD Array
- Absolute difference divisible by K
- Find the first node of loop in linked list
- Geeks And The String
- Maximum average subarray
- Reverse a linked list
- Pairwise swap elements of a linked list
- Remove duplicates from an unsorted linked list
- Right View of Binary Tree
- K distance from root
- Maximum Width of Tree
- Height of Binary Tree
- Middle of a Linked List
- Left View of Binary Tree
- Delete Middle of Linked List
- Decimal Equivalent of Binary Linked List
- Remove Duplicates from a Sorted Linked List
- Reverse Level Order Traversal
- DFS of Graph
- Binary Search
- Largest subarray of 0's and 1's
- Remove Duplicates Sorted Array
- Level Order Line by Line
- Minimum Depth of a Binary Tree
- Unique rows in boolean matrix
- Longest Consecutive Subsequence
- Array Duplicates
- Level of a Node in Binary Tree
- Linked List Matrix
- Rotate doubly Linked List
- First Set Bit
- Rightmost different bit
- Check K-th Bit
- Longest Consecutive 1's
- Power of 2
- Swap odd and even bits
- Parenthesis Checker
- N meetings in one room
- Reach a given score
- Missing in Array
- Missing And Repeating
- Subarrays with given sum
- Next greater number set digits
- Search in a Row-Column sorted matrix
- Move All Zeroes to End
- Chocolate Distribution Problem
- Smallest subarray with sum greater than x
- Count Substrings
- Two Sum - Pair with Given Sum
- Rotate Bits
- Sort Unsorted Subarray
- Number of occurrence
- Convert an array to reduced form
- Longest Common Prefix of Strings
- Fitting The Array
- Shop in Candy Store
- Minimum Operations
- Number of 1 Bits
- Max Sum Subarray of size K
- Swap two nibbles in a byte
- Toggle bits in the given range
- Party of Couples
- The Bit Game
- Happy Number
- Minimum number of Coins
- Number Of Open Doors
- Smallest number with sum of digits as N and divisible by 10^N
- Maximize Toys
- Deficient Number
- Sum of First N Natural Numbers
- Tom and Jerry
- Help Ishaan
- Print the pattern
- Binary Tree K level sum
- Minimum Exchange
- Count all possible paths from top left to bottom right
- Ball coloring
- Modified Numbers and Queries
- Sum of k smallest elements in BST
- Print Diagonally
- Queue using stack
- Binary Search in forest
- Maximum number of 2X2 squares
- License Key Formatting
- Wave Array
- Smallest Subset with Greater Sum
- Minimum Sum of Absolute Differences of Pairs
- Move Last Element to Front of a Linked List
- Find pairs with given sum in doubly linked list
- Three Numbers
- Bus Ticket Change
- Bots on social media
- Min operations
- Reorder List
- Distinct occurrences
- LRU Cache
- Maximum subset XOR
- Alien Dictionary
- Merge Sort on Doubly Linked List
- Smallest window containing all characters
- Merge Without Extra Space
- Minimum sum partition
- Number Formation
- Word Break - 2
- N-Queen Problem
- Geek collects the balls
- Smallest Positive Integer that can not be represented as Sum
- Count occurrences of a given word in a 2-d array
- Min Chars to Add for Palindrome
- MaxSkill
- Min Time
- Count triplets with sum smaller than X
- Find Length of Linked List
- Queue using Linked List
- First Occurence
- Bit Difference
- Number is sparse or not
- Remove common characters and concatenate
- Anagram Palindrome
- Maximum product of two numbers
- Value equal to index value
- Last index of One
- First K natural numbers
- Check for Power
- Set kth bit
- Smallest power of 2 greater than or equal to n
- Find the fine
- 12 hour clock Multiplication
- Max Min