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anurag8546
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BASIC (15)
EASY (101)
MEDIUM (215)
HARD (22)
- Sorting Elements of an Array by Frequency
- 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
- Check for BST
- Merge Sort
- Quick Sort
- Bottom View of Binary Tree
- Diameter of a Binary Tree
- Stack using Queue
- Tree Boundary Traversal
- Implement stack using array
- Delete a node from BST
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological Sort
- Vertical Tree Traversal
- Find the number of islands
- Find kth element of spiral matrix
- Get Min from Stack
- Minimum Spanning Tree
- Implement Atoi
- Palindrome Linked List
- Rat in a Maze
- Bipartite Graph
- Merge k Sorted Arrays
- Find triplets with zero sum
- Sort a stack
- Top View of Binary Tree
- k-th Smallest in BST
- Peak element
- Root to Leaf Paths
- Maximum path sum
- Children Sum in a Binary Tree
- Find length of Loop
- Kth Ancestor in a Tree
- ZigZag Tree Traversal
- Ceil in BST
- Smallest Positive Missing
- Power Of Numbers
- Possible Words From Phone Digits
- Stock buy and sell
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Union of 2 Sorted Arrays
- Merge Without Extra Space
- Rotate by 90 degree
- Distance of nearest cell having 1
- Longest Consecutive Subsequence
- Strings Rotations of Each Other
- Case-specific Sorting of Strings
- Stock span problem
- Next Greater Element
- Infix to Postfix
- K Sized Subarray Maximum
- Minimum Cost of ropes
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Black and White
- Target Sum Combinations
- M-Coloring Problem
- Minimum Jumps
- Stickler Thief
- Ways to Reach the n'th Stair
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Largest number
- K nearest Points
- Find the Average
- Find jth element in ith row of a pascal triangle
- Number of Unique Paths
- Allocate Minimum Pages
- Zero Sum Subarrays
- Kth Smallest
- Shortest Common Supersequence
- Rotten Oranges
- Top K Frequent in Array
- Generate Parentheses
- Sort 0s, 1s and 2s
- Complement
- Pascal Triangle
- Maximize Number of 1's
- Single Among Doubles in a Sorted
- Single Among Doubles
- Pythagorean Triplet
- Search in Rotated Sorted Array
- Count Full Binary Trees
- Max Score from Subarray Mins
- Add Binary Strings
- Maximum Product Subarray
- Row with max 1s
- Substrings with K Distinct
- Form a palindrome
- Longest Subarray with Sum K
- Next Smaller Element
- Max Sum without Adjacents
- Length of the longest substring
- Sum of XOR of all pairs
- Longest Common Substring
- Longest Substring with K Uniques
- Longest Palindrome in a String
- K-th element of two Arrays
- Rod Cutting
- Longest Palindromic Subsequence
- Build the smallest
- Minimize the Heights II
- 3 Divisors
- Minimum number of deletions and insertions
- Coin Change (Count Ways)
- Sieve of Eratosthenes
- Perfect Sum Problem
- Power Set
- Knapsack with Duplicate Items
- Subsets with XOR value
- Partition Equal Subset Sum
- Magic Triplets
- Find nth root of m
- Jumping Numbers
- A Game of LCM
- Grouping Of Numbers
- Next Permutation
- Missing number in matrix
- Total Decoding Messages
- Kth Largest in a Stream
- Replace O's with X's
- Two odd Occuring
- Floyd Warshall
- Flood fill Algorithm
- Shortest Source to Destination Path
- Base Equivalence
- Spiral Matrix
- Jump Game
- Iterative Postorder
- Subset Sum Problem
- 3 Sum Closest
- Bellman-Ford
- Capacity To Ship Packages Within D Days
- Remove K Digits
- Number of Provinces
- Division without using multiplication, division and mod operator
- Target Sum
- Overlapping Intervals
- Reverse a Stack
- Enemy
- Array Removals
- Wine Buying and Selling
- Number of Distinct Islands
- K-periodic Circular String
- Minimum Multiplications to reach End
- Number Of Enclaves
- Alex Travelling
- Cheapest Flights Within K Stops
- Shortest path in Directed Acyclic Graph
- Majority Element - More Than n/3
- Sum of Beauty of All Substrings
- Koko Eating Bananas
- Search in Rotated Array 2
- Longest subarray with Atmost two distinct integers
- Longest Repeating Character Replacement
- Maximum Consecutive Ones
- Count Subarray with k odds
- Count Substring
- Binary subarray with sum
- Sum of subarray minimums
- Frog Jump
- Asteroid Collision
- Minimal Cost
- Sum of subarray ranges
- Maximum point you can obtain from cards
- Subarrays with K Distinct Integers
- Combination Sum III
- Aggressive Cows
- Smallest Divisor
- Subset II
- Combination Sum II
- Next Greater Element 2
- Prime Factorization using Sieve
- Prefix to Infix Conversion
- Prefix to Postfix Conversion
- Minimum days to make M bouquets
- Generate all binary strings
- Task Scheduler
- Maximum Sum Combination
- Minimum Window Substring
- Replace elements by its rank in the array
- Convert Min Heap to Max Heap
- Shortest Job first
- Count Number of Nodes in a Binary Tree
- Floor in BST
- Geeks And The String
- Minimum repeat to make substring
- Intersection Point in Y Shaped Linked Lists
- BST Downward Traversal
- Length of the longest subarray with positive product
- Minimum Days
- Maximum Intersecting Lines
- Job Sequencing Problem
- Another Coin Change Problem
- Geek's Village and Wells
- Find Number
- Powerful Integer
- Max Coins
- Good Subtrees
- Subtree In N-ary Tree
- Maximum subset sum
- Palindrome with minimum sum
- Geek and New Job
- Reverse a 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
- Maximum Width of Tree
- Height of Binary Tree
- Balanced Tree Check
- Kth from End of Linked List
- Middle of a Linked List
- Left View of Binary Tree
- Delete Middle of 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
- Identical Trees
- Square Root
- Insertion at doubly linked list
- Search a node in BST
- Minimum distance in an Array
- Inorder Successor in BST
- Disjoint set (Union-Find)
- Minimum element in BST
- Symmetric Tree
- Queue Reversal
- Delete Mid of a Stack
- Predict the Column
- Check K-th Bit
- Power of 2
- Frequencies in a Limited Array
- Array Leaders
- Transpose of Matrix
- Anagram
- Isomorphic Strings
- Parenthesis Checker
- K largest elements
- N meetings in one room
- Single Appearance
- Compress String
- Missing And Repeating
- Find Kth Rotation
- Sorted and Rotated Minimum
- Move All Zeroes to End
- Missing number
- Second Largest
- Does array represent Heap
- Convert an array to reduced form
- Check if array is sorted
- Longest Common Prefix of Strings
- Minimum Operations
- Count numbers containing 4
- Reach the Nth point
- Minimum number of Coins
- Break a number
- Page Faults in LRU
- Prime Factors
- Make Zeroes
- Letters Collection
- Primes sum
- Maximum Sum LCM
- Queue using stack
- Minimum Swaps
- Geek and Snow Fighting
- Find pairs with given sum in doubly linked list
- Multiset
- Even Sum
- Distinct Subsequence
- Subsequence Mex
- Again Permutation
- Maximum Frequency
- Police Station
- Largest odd number in string
- Maximum Nesting Depth of the Parentheses
- All divisors of a Number
- Find XOR of numbers from L to R.
- Outermost Parentheses
- Remove duplicates from a sorted doubly linked list
- Assign Cookies
- Bus Ticket Change
- Introduction to Trees
- Binary Search Trees
- Unique Binary Tree Requirements
- Type it!
- Min operations
- Toggle
- Last cell in a Matrix
- Balloon Everywhere
- String Mirror
- Make Palindrome
- Binary Modulo
- Total Cuts
- Bit Magic
- Array Operations
- Unique Number of Occurrences
- Linked List Group Reverse
- Reorder List
- Max rectangle
- Alien Dictionary
- Trapping Rain Water
- Smallest window containing all characters
- Histogram Max Rectangular Area
- Max of min for every window size
- Median of 2 Sorted Arrays of Different Sizes
- Minimum sum partition
- Matrix Chain Multiplication
- Median in a row-wise sorted Matrix
- Word Ladder II
- Split Array Largest Sum
- Scrambled String
- Minimize Max Distance to Gas Station
- Count Reverse Pairs
- Candy
- Better String
- Select Nodes
- Count Binary Strings With No Consecutive 1s
- Cake Distribution Problem
- Queue using Linked List
- Queue Using Array
- Preorder Traversal
- Sum Except First and Last
- Linked List Insertion At End
- Insert in Middle of Linked List
- Bit Difference
- Print 1 To N Without Loop
- One odd Occuring
- Rotating an Array
- Odd or Even
- Set the rightmost unset bit
- House Robber
- Sum of first n terms
- Swap two numbers