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903
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838 points
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41 submissions in current year
SCHOOL (1)
BASIC (25)
EASY (114)
MEDIUM (171)
HARD (19)
- Find Length of Linked List
- Count Leaves in Binary Tree
- Queue using Linked List
- Preorder Traversal
- First Occurence
- Sum Except First and Last
- Linked List Insertion At End
- Anagram of String
- Print 1 To N Without Loop
- Binary String
- First n Fibonacci
- Repeated Character
- Merge two strings
- Largest Element in Array
- Rotate Array by One
- Array Subset
- Rotating an Array
- Odd or Even
- Check for Power
- LCM And GCD
- Repeated IDs
- Reverse digits
- Sum of first n terms
- Count Squares
- Finding Position
- Sorting Elements of an Array by Frequency
- Spidey Sense
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Add Number Linked Lists
- Add 1 to a Linked List Number
- Detect Loop in linked list
- Count BST nodes that lie in a given range
- Check for BST
- 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
- Flattening a Linked List
- Tree Boundary Traversal
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Lowest Common Ancestor in a BST
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological sort
- Vertical Tree Traversal
- Merge K sorted linked lists
- Find the number of islands
- Gas Station
- Is Binary Tree Heap
- Remove loop in Linked List
- Dijkstra Algorithm
- Largest BST
- Interleaved Strings
- Count Palindromic Subsequences
- Palindrome Linked List
- Strongly Connected
- Rat in a Maze
- Bipartite Graph
- Closest in BST
- Count distinct elements in every window
- Merge k Sorted Arrays
- Sort a stack
- Top View of Binary Tree
- k-th Smallest in BST
- Level order traversal
- Merge Sort for Linked List
- Root to Leaf Paths
- Linked List that is Sorted Alternatingly
- Isomorphic Trees
- Children Sum in a Binary Tree
- Find length of Loop
- ZigZag Tree Traversal
- Ceil in BST
- Wave Array
- Stock buy and sell
- Kadane's Algorithm
- Count Inversions
- Union of 2 Sorted Arrays
- Indexes of Subarray Sum
- Triplet Sum in Array
- Spirally traversing a matrix
- Rotate by 90 degree
- Distance of nearest cell having 1
- Subarray with 0 sum
- Subarrays with equal 1s and 0s
- Longest Consecutive Subsequence
- Stock span problem
- Next Greater Element
- Infix to Postfix
- K Sized Subarray Maximum
- Kth smallest element
- Minimum Cost of ropes
- Largest number in K swaps
- Target Sum Combinations
- M-Coloring Problem
- Minimum Jumps
- Stickler Thief
- Ways to Reach the n'th Stair
- Egg Dropping Puzzle
- Optimal Strategy For A Game
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Equal Sum Partition
- Sort according to an Array
- Allocate Minimum Pages
- Find whether path exist
- Kth Smallest
- Implement Trie
- Nth Catalan Number
- Rotten Oranges
- Steps by Knight
- Maximize The Cut Segments
- Print Anagrams Together
- Overlapping Intervals
- Word Break
- Sort 0s, 1s and 2s
- Paths to reach origin
- Maximum Index
- Top k numbers in a stream
- Consecutive 1's not allowed
- Pythagorean Triplet
- Painting the Fence
- Smallest number with at least n trailing zeroes in factorial
- Form the Largest Number
- Maximum Product Subarray
- Row with max 1s
- Longest Subarray with Sum K
- Max Sum without Adjacents
- Shuffle integers
- Longest Common Substring
- Longest substring with distinct characters
- Longest Substring with K Uniques
- Longest Palindrome in a String
- Tic Tac Toe
- Integer to Words
- K-th element of two Arrays
- Triplets with Smaller Sum
- Rod Cutting
- Minimum swaps and K together
- LCS of three strings
- First negative in every window of size k
- Maximum difference of zeros and ones in binary string
- Minimize the Heights II
- First and Last Occurrences
- Valid Substring
- Permutations of a String
- Find largest word in dictionary
- Friends Pairing Problem
- Subarrays Product Less than K
- Modular Exponentiation
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Sequence of Sequence
- Sieve of Eratosthenes
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Perfect Sum Problem
- Knapsack with Duplicate Items
- nCr
- Maximum path sum in matrix
- Partition Equal Subset Sum
- Min Coin
- Get Minimum Squares
- Subset Sums
- Number of paths
- Find nth root of m
- Next Permutation
- Preorder Traversal and BST
- Stream First Non-repeating
- Segregate even and odd nodes in a Linked List
- Largest square formed in a matrix
- Two odd Occuring
- Count the paths
- Iterative Inorder
- Preorder traversal (Iterative)
- Iterative Postorder
- Subset Sum Problem
- Bellman-Ford
- Rearrange characters
- Maximum Meetings in One Room
- Number of Distinct Islands
- Shortest Path in Undirected Graph
- Shortest path in Directed Acyclic Graph
- Frog Jump
- Minimal Cost
- Geek's Training
- Aggressive Cows
- Floor in BST
- Gadgets of Doraland
- Reverse a linked list
- Delete N nodes after M nodes of a linked list
- Pairwise swap elements of a linked list
- Delete nodes having greater value on right
- Remove duplicates from an unsorted linked list
- Delete in a Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- Bubble Sort
- Selection Sort
- Insertion Sort
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- 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
- Intersection Sorted Linked Lists
- Remove Duplicates from a Sorted Linked List
- Postorder Traversal
- Level Order in spiral form
- DFS of Graph
- Stack using Linked List
- Insert a node in a BST
- BFS of graph
- Root to leaf path sum
- Square Root
- Binary Search
- Run Length Encoding
- Largest subarray of 0's and 1's
- Unique rows in boolean matrix
- Leaves at Same Level or Not
- Convert to Roman No
- Match specific pattern
- Search a node in BST
- Josephus problem
- Expression Tree
- Kth largest element in BST
- Three way partitioning
- Inorder Successor in BST
- Insert in a Sorted List
- Minimum element in BST
- Max and min element in Binary Tree
- Reverse Using Stack
- Queue Reversal
- Reverse first K of a Queue
- Sum of Leaf Nodes
- Frequency Game
- Check K-th Bit
- Longest Consecutive 1's
- Power of 2
- Swap odd and even bits
- Array Leaders
- Print adjacency list
- String Rotated by 2 Places
- Reverse Words
- Non Repeating Character
- Parenthesis Checker
- N meetings in one room
- Union of Arrays with Duplicates
- Check Equal Arrays
- Roman Number to Integer
- Count minimum right flips to set all values in an array
- Missing And Repeating
- Maximum Gap
- Sort by Set Bit Count
- Pairs with certain difference
- Search in a Row-Column sorted matrix
- Chocolate Distribution Problem
- Smallest subarray with sum greater than x
- Sort Array II
- Remove Consecutive Characters
- Second Largest
- Two Sum - Pair with Given Sum
- Second most repeated string in a sequence
- Number of occurrence
- Min Number of Flips
- Two sum -Pairs with 0 Sum
- Print an array in Pendulum Arrangement
- Element with left side smaller and right side greater
- Palindrome String
- Shop in Candy Store
- Is Binary Number Multiple of 3
- Number of 1 Bits
- Armstrong Numbers
- Reverse Bits
- Nth Fibonacci Number
- Count Digits
- Element that appears once where every element occurs twice
- Sum 1 to n Divisors
- Count numbers containing 4
- Maximum height of the staircase
- BBT counter
- Arithmetic Number
- Inorder Traversal and BST
- Overlapping rectangles
- Help the Old Man!!!
- Print Pattern
- Count all possible paths from top left to bottom right
- Print Diagonally
- Count the Substrings
- Print N to 1 without loop
- Print GFG n times
- Find XOR of numbers from L to R.
- Search in Linked List
- Array to Linked List
- Introduction to Doubly Linked List
- Implement Lower Bound
- Linked List Group Reverse
- Clone List with Next and Random
- Min distance between two given nodes of a Binary Tree
- LRU Cache
- Alien Dictionary
- Smallest range in K lists
- Trapping Rain Water
- Smallest window containing all characters
- Histogram Max Rectangular Area
- Max of min for every window size
- Find median in a stream
- Merge Without Extra Space
- Number of distinct subsequences
- Edit Distance
- Strictly Increasing Array
- Longest valid Parentheses
- N-Queen Problem
- Maximum sum Rectangle
- Articulation Point - I