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Language Used
C++, Java, C
Coding Score
1113
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372
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1639
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sksinha2410186 points
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186 points
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BASIC (31)
EASY (107)
MEDIUM (196)
HARD (38)
- Longest Even Length Substring
- Sorting Elements of an Array by Frequency
- Rearrange characters
- Nearly Sorted Algorithm
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Rearrange a linked list
- Add 1 to a Linked List Number
- Detect Loop in linked list
- Quick Sort on Linked List
- Count BST nodes that lie in a given range
- Merge Sort
- 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
- Connect Nodes of Levels
- Flattening a Linked List
- Diagonal Tree Traversal
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Absolute List Sorting
- Binary Heap Operations
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological sort
- Vertical Tree Traversal
- Merge K sorted linked lists
- Find the number of islands
- Get Min from Stack
- Gas Station
- Generate IP Addresses
- Kth element in Matrix
- Is Binary Tree Heap
- Dijkstra Algorithm
- Minimum Spanning Tree
- Largest BST
- Multiply two strings
- Minimum Swaps to Sort
- Implement Atoi
- Palindrome Linked List
- Strongly Connected
- Rat in a Maze Problem - I
- Bipartite Graph
- BST with Dead End
- Delete keys in a Linked list
- Count distinct elements in every window
- Merge k Sorted Arrays
- Top View of Binary Tree
- k-th Smallest in BST
- Merge Sort for Linked List
- Euler Circuit in an Undirected Graph
- Euler circuit and Path
- Complete Binary Tree
- Populate Inorder Successor for all nodes
- Isomorphic Trees
- Maximum path sum from any node
- Predecessor and Successor
- Largest Independent Set Problem
- Check if two Nodes are Cousins
- ZigZag Tree Traversal
- C++ Generic sort
- Count set bits
- Smallest Positive Missing
- Rearrange Array Alternately
- Stock buy and sell
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Indexes of Subarray Sum
- Triplet Sum in Array
- Merge Without Extra Space
- Spirally traversing a matrix
- Distance of nearest cell having 1
- Unit Area of largest region of 1's
- Subarray with 0 sum
- Longest Consecutive Subsequence
- Case-specific Sorting of Strings
- Next Greater Element
- K Sized Subarray Maximum
- Activity Selection
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Minimum Jumps
- Stickler Thief
- Egg Dropping Puzzle
- Optimal Strategy For A Game
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Number of Unique Paths
- Sort according to an Array
- Allocate Minimum Pages
- X Total Shapes
- Zero Sum Subarrays
- Kth Smallest
- Implement Trie
- Shortest Common Supersequence
- Steps by Knight
- Most frequent word in an array of strings
- Maximize The Cut Segments
- Print Anagrams Together
- Word Break
- Word Boggle
- Prerequisite Tasks
- 4 Sum - All Quadruples
- Sort 0s, 1s and 2s
- Top k numbers in a stream
- Sum of Middle elements of two sorted arrays
- Single Among Doubles in a Sorted
- Count Occurences of Anagrams
- Single Among Doubles
- Pythagorean Triplet
- Happiest Triplet
- Search in Rotated Sorted Array
- Maximum Product Subarray
- Row with max 1s
- Swapping pairs make sum equal
- Design a tiny URL or URL shortener
- Substrings with K Distinct
- Palindrome SubStrings
- Form a palindrome
- Rotate a Matrix
- Count the Reversals
- Max Sum without Adjacents
- Factorials of large numbers
- Length of the longest substring
- k largest elements
- Longest Common Substring
- Longest substring with distinct characters
- Longest Palindrome in a String
- K-th element of two Arrays
- Rod Cutting
- K closest elements
- Longest Palindromic Subsequence
- First negative in every window of size k
- Find the number of subarrays having even sum
- Maximum difference of zeros and ones in binary string
- Minimize the Heights II
- First and Last Occurrences
- A difference of values and indexes
- Minimum number of deletions
- Permutations of a String
- Combination Sum - Part 2
- Subarrays Product Less than K
- Max possible amount
- Modular Exponentiation
- Minimum number of deletions and insertions
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Sieve of Eratosthenes
- String Subsequence
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Smallest number
- Count ways to N'th Stair(Order does not matter)
- Minimum Cost To Make Two Strings Identical
- Knapsack with Duplicate Items
- nCr
- Maximum path sum in matrix
- Partition Equal Subset Sum
- Longest Bitonic subsequence
- Array Pair Sum Divisibility Problem
- Subset Sums
- Number of paths
- Stepping Numbers
- Choose and Swap
- Return two prime numbers
- Jumping Numbers
- Longest Repeating Subsequence
- Stream First Non-repeating
- Buying Vegetables
- Kth Largest in a Stream
- Snake and Ladder Problem
- Replace O's with X's
- Negative weight cycle
- Flood fill Algorithm
- Shortest Source to Destination Path
- Recursively Remove Adjacent Duplicates
- Form a palindrome
- Covid Spread
- 3 Sum Closest
- Bellman-Ford
- Player with max score
- IPL 2021 - Match Day 2
- Course Schedule
- Overlapping Intervals
- Number of Distinct Islands
- Eventual Safe States
- Geekland Colosseum
- Shortest Path in Undirected Graph
- String Ignorance
- Geek and his Marks
- Reverse a linked list
- Node at a given index in linked list
- Remove duplicates from an unsorted linked list
- Split a Linked List into two halves
- Delete in a Doubly Linked List
- Inorder Traversal
- Bubble Sort
- Selection Sort
- Insertion 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
- Delete Middle of Linked List
- Transform to Sum Tree
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Stack using two queues
- Reverse Level Order Traversal
- DFS of Graph
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Lowest Common Ancestor in a BST
- Binary Search
- Largest subarray of 0's and 1's
- Binary Tree to BST
- Leaves at Same Level or Not
- Convert to Roman No
- Josephus problem
- You and your books
- Kth largest element in BST
- Max Level Sum in Binary Tree
- Level order traversal
- Symmetric Tree
- Brothers From Different Roots
- First Set Bit
- Rightmost different bit
- Check K-th Bit
- Longest Consecutive 1's
- Power of 2
- Swap odd and even bits
- Wave Array
- Equilibrium Point
- Array Leaders
- Anagram
- Winner of an election
- Strings Rotations of Each Other
- Isomorphic Strings
- Reverse Words
- Minimum indexed character
- Parenthesis Checker
- K largest elements
- Minimum Cost of ropes
- N meetings in one room
- Reach a given score
- Count ways to N'th Stair
- Count number of hops
- Union of Arrays with Duplicates
- Common Elements
- Missing in Array
- Product array puzzle
- Missing And Repeating
- Common in 3 Sorted Arrays
- Sorted and Rotated Minimum
- Min Subsets with Consecutive Numbers
- Minimize the sum of product
- Chocolate Distribution Problem
- Count the triplets
- Remove Duplicates
- Convert array into Zig-Zag fashion
- Second most repeated string in a sequence
- Find all pairs with a given sum
- Number of occurrence
- Convert an array to reduced form
- Counts Zeros Xor Pairs
- Two sum -Pairs with 0 Sum
- Element with left side smaller and right side greater
- Palindrome String
- Shop in Candy Store
- Minimum Operations
- Reverse Bits
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Toggle bits in the given range
- Maximum Sum Problem
- Minimum number of deletions to make a sorted sequence
- Party of Couples
- Assign Mice Holes
- Happy Number
- Minimum number of Coins
- Adjacents are not allowed
- Maximize Toys
- Largest number possible
- Page Faults in LRU
- Sum of dependencies in a graph
- Queue using stack
- Police Station
- Smallest Substring
- Linked List Group Reverse
- Reorder List
- Clone List with Next and Random
- Min distance between two given nodes of a Binary Tree
- Max rectangle
- Distinct occurrences
- LRU Cache
- Partition array to k subsets
- Maximum subset XOR
- Smallest range in K lists
- Merge Sort on Doubly Linked List
- Fixing Two nodes of a BST
- Max Path Sum 2 Special Nodes
- Trapping Rain Water
- Max Circular Subarray Sum
- Smallest window containing all characters of another string
- Find median in a stream
- Solve the Sudoku
- Word Ladder I
- Burning Tree
- Merge Without Extra Space
- Distinct palindromic substrings
- Ugly Numbers
- Largest rectangle of 1s with swapping of columns allowed
- Longest Prefix Suffix
- Edit Distance
- Minimum Points To Reach Destination
- Minimum sum partition
- Palindromic Partitioning
- Next Happy Number
- Stock Buy and Sell – Max K Transactions Allowed
- Matrix Chain Multiplication
- Median in a row-wise sorted Matrix
- Longest valid Parentheses
- Longest Zig-Zag Sub Sequence
- Word Break - 2
- N-Queen Problem
- Word Ladder II
- Sort String
- Count Linked List Nodes
- Power of Four
- Count Leaves in Binary Tree
- Postorder Traversal
- Add two fractions
- Preorder Traversal
- Sum Except First and Last
- Minimum element in BST
- Circular Linked List Traversal
- Insert in Middle of Linked List
- Number is sparse or not
- Reverse array in groups
- Sorted Array Search
- Most Frequent Character
- Remove common characters and concatenate
- Reverse a String
- Binary Array Sorting
- Searching in an Array
- Doubling the value
- Last index of One
- Rotate Array by One
- Array Subset
- First and Second Smallests
- Set kth bit
- Median of an Array
- Ways To Tile A Floor
- Count Squares
- Middle of Three
- Minimum difference pair
- Sorted matrix
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