D
16gandhihemani
STREAK
11/1477
days
Longest streak/Global longest streak
Language Used
C++, Java, C
Coding Score
1478
Problem Solved
449
Contest Rating
__
7 points
Contributor
7 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
11 submissions in current year
SCHOOL (1)
BASIC (22)
EASY (131)
MEDIUM (247)
HARD (48)
- Rearrange characters
- Minimum Moves
- Sort a linked list of 0s, 1s and 2s
- Add Number Linked Lists
- Add 1 to a Linked List Number
- Linked List in Zig-Zag fashion
- 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
- Sum Tree
- Connect Nodes of Levels
- Flattening a Linked List
- Tree Boundary Traversal
- Reverse alternate levels of a perfect binary tree
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Absolute List Sorting
- Two Stacks in an Array
- 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
- Gas Station
- Generate IP Addresses
- Check if subtree
- Kth smallest element in a Matrix
- Is Binary Tree Heap
- Remove loop in Linked List
- Dijkstra Algorithm
- Minimum Spanning Tree
- Largest BST
- Interleaved Strings
- Count Palindromic Subsequences
- Minimum Swaps to Sort
- Implement Atoi
- Palindrome Linked List
- Strongly Connected
- Rat in a Maze Problem - I
- Bipartite Graph
- BST with Dead End
- Merge two BST 's
- Merge k Sorted Arrays
- Root to leaf paths sum
- Bridge edge in a graph
- Sort a stack
- Duplicate Subtree
- Top View of Binary Tree
- k-th Smallest in BST
- Level order traversal
- Merge Sort for Linked List
- Union of Two Linked Lists
- Pair Sum in BST
- Root to Leaf Paths
- Populate Inorder Successor for all nodes
- Construct Tree from Inorder & Preorder
- Isomorphic Trees
- Maximum path sum from any node
- Predecessor and Successor
- Children Sum in a Binary Tree
- Deletion and Reverse in Circular Linked List
- Normal BST to Balanced BST
- Duplicate Subtrees
- Sum of nodes on the longest path
- Kth Ancestor in a Tree
- ZigZag Tree Traversal
- Add two numbers represented by Linked List
- Ceil in BST
- Count set bits
- Stock buy and sell
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Union of 2 Sorted Arrays
- Triplet Sum in Array
- Spirally traversing a matrix
- Distance of nearest cell having 1
- Subarray with 0 sum
- Longest Consecutive Subsequence
- Postfix Evaluation
- Next Greater Element
- Infix to Postfix
- Activity Selection
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Largest number in K swaps
- Combination Sum
- M-Coloring Problem
- Minimum Jumps
- Detect Cycle using DSU
- Stickler Thief
- Ways to Reach the n'th Stair
- Egg Dropping Puzzle
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Number of Unique Paths
- Allocate Minimum Pages
- Preorder to BST
- Zero Sum Subarrays
- Kth Smallest
- Implement Trie
- Rotten Oranges
- Steps by Knight
- Maximize The Cut Segments
- Print Anagrams Together
- Word Break
- Stock Buy and Sell – Multiple Transaction Allowed
- Prerequisite Tasks
- 4 Sum - All Quadruples
- Sort 0s, 1s and 2s
- Single Among Doubles
- Pythagorean Triplet
- Painting the Fence
- Search in Rotated Sorted Array
- Smallest number with at least n trailing zeroes in factorial
- Max Score from Subarray Mins
- Maximum Product Subarray
- Row with max 1s
- Substrings with K Distinct
- Longest Subarray with Sum K
- Count the Reversals
- Max Sum without Adjacents
- Factorials of large numbers
- Shuffle integers
- Length of the longest substring
- k largest elements
- Longest Common Substring
- Smallest distinct window
- Longest Substring with K Uniques
- Longest Palindrome in a String
- Look and Say Pattern
- K-th element of two Arrays
- Triplets with Smaller Sum
- Rod Cutting
- K closest elements
- Minimum swaps and K together
- LCS of three strings
- Longest Palindromic Subsequence
- First negative in every window of size k
- Maximum difference of zeros and ones in binary string
- Minimum sum
- Not a subset sum
- Minimize the Heights II
- First and Last Occurrences
- Valid Substring
- Minimum Swaps for Bracket Balancing
- Permutations of a String
- Friends Pairing Problem
- Unique Number II
- Max Sum Increasing Subsequence
- Minimum cost to fill given weight in a bag
- Coin Change (Count Ways)
- Mobile numeric keypad
- Gold Mine Problem
- Perfect Sum Problem
- Smallest number
- Longest subsequence-1
- Power Set
- Knapsack with Duplicate Items
- nCr
- Geek and its Game of Coins
- Maximum path sum in matrix
- Partition Equal Subset Sum
- Longest Bitonic subsequence
- Subset Sums
- Choose and Swap
- Find nth root of m
- Sum of Query II
- Game with String
- Fraction to Repeating Decimal
- Next Permutation
- Longest Repeating Subsequence
- Longest alternating subsequence
- Preorder Traversal and BST
- Stream First Non-repeating
- Segregate even and odd nodes in a Linked List
- Largest square formed in a matrix
- Kth Largest in a Stream
- Snake and Ladder Problem
- Two odd Occuring
- Check Mirror in N-ary tree
- Find the string in grid
- Floyd Warshall
- Negative weight cycle
- Shortest Source to Destination Path
- Dam of Candies
- Transfiguration
- Repeated String Match
- Restricted Pacman
- Iterative Postorder
- Subset Sum Problem
- Longest Palindromic Substring
- All Palindromic Partitions
- Bellman-Ford
- Subarrays with sum K
- Rearrange characters
- Number of Provinces
- Division without using multiplication, division and mod operator
- IPL 2021 - Match Day 2
- Box Stacking
- Min Cost Climbing Stairs
- Overlapping Intervals
- Reverse a Stack
- Maximum product subset of an array
- K-th Largest Sum Contiguous Subarray
- Maximum Meetings in One Room
- Max Equal sum of 3 Stacks
- Buy Maximum Stocks
- Smallest sum contiguous subarray
- Array Removals
- Minimum Cost to cut a board into squares
- Stack Permutations
- Replace every element with the least greater element on its right
- Minimum Multiplications to reach End
- Shortest Path in Undirected Graph
- Shortest path in Directed Acyclic Graph
- Longest subarray with Atmost two distinct integers
- Frog Jump
- Minimal Cost
- Geek's Training
- Number of greater elements to the right
- Prime Factorization using Sieve
- Prefix to Infix Conversion
- Prefix to Postfix Conversion
- Delete all occurrences of a given key in a doubly linked list
- Postfix to Prefix Conversion
- Postfix to Infix Conversion
- Replace elements by its rank in the array
- Convert Min Heap to Max Heap
- Shortest Job first
- Introduction to DP
- Print Longest Increasing Subsequence
- Bit's basic operations
- Partitions with Given Difference
- Index of the First Occurrence of pattern in a text
- Floor in BST
- Delete nodes having greater value on right
- Remove duplicates from an unsorted linked list
- Split a Linked List into two halves
- Delete in a Doubly Linked List
- Reverse a Doubly Linked List
- Bubble Sort
- Insertion Sort
- Check for BST
- Right View of Binary 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
- Transform to Sum Tree
- Intersection Sorted Linked Lists
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Stack using two queues
- Reverse Level Order Traversal
- DFS of Graph
- Stack using Linked List
- Implement stack using array
- Insert a node in a BST
- BFS of graph
- Square Root
- Insertion at doubly linked list
- Lowest Common Ancestor in a BST
- Minimum Depth of a Binary Tree
- Binary Tree to BST
- Unique rows in boolean matrix
- Leaves at Same Level or Not
- Multiply two linked lists
- Kth largest element in BST
- Special Stack
- Three way partitioning
- Disjoint set (Union-Find)
- Insert in a Sorted List
- Reverse Using Stack
- Full Binary Tree
- Merge Lists Alternatingly
- Find length of Loop
- Queue Reversal
- Reverse first K of a Queue
- Brothers From Different Roots
- Check K-th Bit
- Power of 2
- Array Leaders
- Floor in a Sorted Array
- Print adjacency list
- Isomorphic Strings
- Parenthesis Checker
- Generate Binary Numbers
- Minimum Cost of ropes
- N meetings in one room
- Reach a given score
- Union-Find
- Count number of hops
- Union of Arrays with Duplicates
- Missing in Array
- Product array puzzle
- Roman Number to Integer
- Search an element in sorted and rotated array
- Max Value Permutation
- Missing And Repeating
- Pairs of equals Sum
- Find Kth Rotation
- Sort by Set Bit Count
- Maximize sum after K negations
- Pairs with certain difference
- Common in 3 Sorted Arrays
- Maximum no of 1's row
- Move all negative elements to end
- Chocolate Distribution Problem
- Punish the Students
- Find Pair Given Difference
- Swap and Maximize
- Bitonic Point
- Left most and right most index
- Smallest subarray with sum greater than x
- Alternate Positive Negative
- Remove Consecutive Characters
- Sum of two numbers represented as arrays
- Second Largest
- Convert array into Zig-Zag fashion
- Number of occurrence
- Does array represent Heap
- Min Number of Flips
- Two sum -Pairs with 0 Sum
- Element with left side smaller and right side greater
- Merge two binary Max heaps
- Four Elements
- Palindrome String
- Search array with adjacent diff at most k
- Shop in Candy Store
- Number of 1 Bits
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Ceil The Floor
- Copy Set Bits in Range
- Geek and his Binary Strings
- Maximize Toys
- Page Faults in LRU
- Check if it is possible to survive on Island
- Find the minimum time
- BBT counter
- Prime Factors
- Arithmetic Number
- Array to BST
- Plus One
- Queue using stack
- Count the Substrings
- Split the binary string into substrings with equal number of 0s and 1s
- Smallest Subset with Greater Sum
- Minimum Sum of Absolute Differences of Pairs
- Find pairs with given sum in doubly linked list
- All divisors of a Number
- Find XOR of numbers from L to R.
- Search in Linked List
- Remove duplicates from a sorted doubly linked list
- Array to Linked List
- Bit Manipulation
- Introduction to Trees
- Binary Search Trees
- Introduction to Doubly Linked List
- Implementation of Priority Queue using Binary Heap
- Graph and Vertices
- Unique Binary Tree Requirements
- Binary Tree Representation
- Is it a Leap Year
- Linked List Group Reverse
- Reorder List
- Binary Tree to DLL
- Clone List with Next and Random
- Min distance between two given nodes of a Binary Tree
- Max rectangle
- LRU Cache
- Box Stacking
- Partition array to k subsets
- Alien Dictionary
- Smallest range in K lists
- Nodes at given distance in binary tree
- Max Path Sum 2 Special Nodes
- String Permutations
- Trapping Rain Water
- Max Circular Subarray Sum
- Histogram Max Rectangular Area
- Find median in a stream
- Solve the Sudoku
- Median of 2 Sorted Arrays of Different Sizes
- Burning Tree
- Merge Without Extra Space
- Next Smallest Palindrome
- The Painter's Partition Problem-II
- Longest Prefix Suffix
- Wildcard string matching
- Edit Distance
- Minimum sum partition
- Palindromic Partitioning
- Stock Buy and Sell – Max K Transactions Allowed
- Check Tree Traversal
- Matrix Chain Multiplication
- Median in a row-wise sorted Matrix
- Boolean Parenthesization
- Word Break - 2
- N-Queen Problem
- Phone directory
- Word Wrap
- Maximum sum Rectangle
- Huffman Encoding
- Water Connection Problem
- Smallest Positive Integer that can not be represented as Sum
- Word Break (Trie)
- Shortest Unique prefix for every word
- Articulation Point - I
- Stock Buy and Sell – Max 2 Transactions Allowed
- Chocolates Pickup
- Better String
- Find Length of Linked List
- Queue using Linked List
- Queue Using Array
- Preorder Traversal
- Sum Except First and Last
- Search a node in BST
- Linked List Insertion At End
- Minimum element in BST
- Bit Difference
- Sorted Array Search
- Value equal to index value
- Largest Element in Array
- Rotate Array by One
- Array Subset
- Min and Max in Array
- Odd or Even
- Find position of set bit
- Set the rightmost unset bit
- Count Squares
- Swap two numbers
- Sorted matrix
- Preorder Traversal
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