H
khatriharsh281
STREAK
106/1470
days
Longest streak/Global longest streak
Language Used
C++, C, Python
Coding Score
1209
Problem Solved
390
Contest Rating
__
34 points
Contributor
34 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
0 submissions in current year
SCHOOL (0)
BASIC (27)
EASY (105)
MEDIUM (231)
HARD (27)
- Minimum Moves
- Rotate a Linked List
- Add 1 to a Linked List Number
- Quick Sort on Linked List
- Count BST nodes that lie in a given range
- Merge Sort
- Quick Sort
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Add all greater values to every node in a BST
- Sum Tree
- Connect Nodes of Levels
- Diagonal Tree Traversal
- LCA in Binary Tree
- Maximum difference between node and its ancestor
- The Celebrity Problem
- Largest subarray with 0 sum
- Merge K sorted linked lists
- Find the number of islands
- Get Min from Stack
- Linked List to Binary Tree
- Generate IP Addresses
- Check if subtree
- Validate an IP Address
- Dijkstra Algorithm
- Minimum Swaps to Sort
- Implement Atoi
- Number of root to leaf paths
- Count distinct elements in every window
- Trie | (Delete)
- Bridge edge in a graph
- Sort a stack
- Peak element
- Delete nodes greater than k
- Complete Binary Tree
- Populate Inorder Successor for all nodes
- Construct expression tree
- Foldable Binary Tree
- Mirror of a given node
- Leaves to DLL
- Count Number of SubTrees having given Sum
- Swap Kth nodes from ends
- Maximum sum of Non-adjacent nodes
- Ceil in BST
- Reverse array in groups
- Smallest Positive Missing
- Wave Array
- Possible Words From Phone Digits
- Rearrange an array with O(1) extra space
- Maximum Index
- Stock buy and sell
- Rotate Array
- Kadane's Algorithm
- Majority Element
- Binary Array Sorting
- Smallest Positive missing number
- Union of 2 Sorted Arrays
- Indexes of Subarray Sum
- Merge Without Extra Space
- Possible paths between 2 vertices
- Boolean Matrix
- Spirally traversing a matrix
- Search in a sorted Matrix
- Rotate by 90 degree
- Determinant of a Matrix
- Subarrays with equal 1s and 0s
- Sort Elements by Decreasing Frequency
- Strings Rotations of Each Other
- Case-specific Sorting of Strings
- Postfix Evaluation
- Stock span problem
- Next Greater Element
- K Sized Subarray Maximum
- Activity Selection
- Minimum Platforms
- Unique Subsets
- Minimum Jumps
- Ways to Reach the n'th Stair
- Egg Dropping Puzzle
- Longest Common Subsequence
- Number of Unique Paths
- Preorder to BST
- X Total Shapes
- Zero Sum Subarrays
- Find whether path exist
- Kth Smallest
- Implement Trie
- Rotten Oranges
- Steps by Knight
- Most frequent word in an array of strings
- Rotate by 90 degree
- Top K Frequent in Array
- 4 Sum - All Quadruples
- Excel Sheet | Part - 1
- Sort 0s, 1s and 2s
- Equivalent Sub-Arrays
- Pair Sum Closest to 0
- Search in Rotated Sorted Array
- Super Primes
- Maximum Product Subarray
- Form a palindrome
- Nuts and Bolts Problem
- Count the Reversals
- Sum of two large numbers
- Reverse each word in a given string
- Remove leading zeros from an IP address
- k largest elements
- Smallest distinct window
- Longest Palindrome in a String
- Integer to Words
- String formation from substring
- Greater tower sum
- Minimum swaps and K together
- Smallest Absolute Difference
- First negative in every window of size k
- Minimum sum
- Smaller on Left
- Maximum Product of Increasing Subsequence of Size 3
- Valid Substring
- Permutations of a String
- Previous number in one swap
- String Subsequence Game
- Unique Number II
- Bleak Numbers
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Kth Smallest Factor
- Firing employees
- Maximum path sum in matrix
- XOR Game
- Min Coin
- Handshakes
- Money Distributions
- Find Last Digit Of a^b for Large Numbers
- N Digit numbers with digits in increasing order
- Knight Walk
- Choose and Swap
- Return two prime numbers
- Find nth root of m
- Find Prime numbers in a range
- Next Permutation
- Geek and knots
- Decode the string
- Preorder Traversal and BST
- Stream First Non-repeating
- Villain Con
- Segregate even and odd nodes in a Linked List
- Valid Pair Sum
- Ruling Pair
- String Reduction Game
- Help Classmates
- Count Unvisited
- Passcode Protected
- Tricky Subset Problem
- Rat Maze With Multiple Jumps
- 7 Segment Display
- Product of Primes
- Check Mirror in N-ary tree
- Queries on Strings
- Special Matrix
- Broken blocks
- Nodes at even distance
- Biconnected Graph
- Help a Thief!!!
- Count the paths
- Negative weight cycle
- Form coils in a matrix
- Shortest Path between Cities
- Moving on grid
- Height Using Parent Array
- Coins of Geekland
- Dam of Candies
- Transfiguration
- Ruling Pair
- Triplets in Sorted Linked List
- Help Classmates
- Lucy's Neighbours
- Spidey Sense
- Escape the Forbidden Forest
- Iterative Inorder
- Triplets with sum with given range
- Preorder traversal (Iterative)
- Iterative Postorder
- Form a palindrome
- Bellman-Ford
- Minimum XOR value pair
- Capacity To Ship Packages Within D Days
- Coin Piles
- Clone a stack without using extra space
- Maximum XOR of two numbers in an array
- Count pairs in array divisible by K
- Construct list using given q XOR queries
- Number of Provinces
- Prefix match with other strings
- Binary Matrix with at most K 1s
- Find duplicate rows in a binary matrix
- Find rectangle with corners as 1
- Cousins of a given node
- Sort for Singly Linked List
- Subsets
- Rank The Permutations
- IPL 2021 - Match Day 2
- Maximum Winning score
- Carpet into Box
- Exactly one swap
- Maximum Possible Value
- Minimum times A has to be repeated such that B is a substring of it
- Can Make Triangle
- Maximum of all subarrays of size k
- Intersection Point in Y Shapped Linked Lists
- Bitwise AND of the Array
- Overlapping Intervals
- Binary matrix having maximum number of 1s
- String rp or pr
- Cities and Teleporters
- Maximum number of events that can be attended
- Robots
- Hit most Balloons
- Concatenate Equal to Target
- Exactly one swap
- Maximum Winning score
- Compute Before Matrix
- Maximum selections
- LCP
- Next element with greater frequency
- Sum of nodes within k distance from target
- Minimum increment/decrement to make array non-Increasing
- Cities and Teleporters
- Volcano
- Check for Binary String
- Preorder Traversal
- First Occurence
- Sum Except First and Last
- Smallest divisible number
- Remainder with 7
- Minimum element in BST
- Anagram of String
- Who has the majority?
- Absolute Value
- Convert Celsius To Fahrenheit
- Quadratic Equation Roots
- Number is sparse or not
- Adding two matrices
- Addition Under Modulo
- Missing Characters in Panagram
- Immediate Smaller Element
- Repeated Character
- Game with nos
- One odd Occuring
- Ishaan Loves Chocolates
- Array Subset
- Magical String[Duplicate Problem]
- 1s Complement
- Find position of set bit
- House Robber
- Binary number to decimal number
- Split the Array
- Reverse a linked list
- Check for BST
- Height of Binary Tree
- Balanced Tree Check
- Left View of Binary Tree
- Find Transition Point
- Queue using two Stacks
- Stack using two queues
- DFS of Graph
- BFS of graph
- Square Root
- Lowest Common Ancestor in a BST
- Binary Search
- Remove Duplicates Sorted Array
- Unique rows in boolean matrix
- Max distance between same elements
- Array Duplicates
- Special Stack
- Reverse Using Stack
- Find length of Loop
- Find n/k th node in Linked list
- Reverse first K of a Queue
- Move all zeros to the front of the linked list
- Delete Mid of a Stack
- Get min at pop
- First Set Bit
- Check K-th Bit
- Digits In Factorial
- GP Term
- Primality Test
- Exactly 3 Divisors
- Modular Inverse
- Swap odd and even bits
- Equilibrium Point
- Array Leaders
- Intersection of two sorted arrays
- Transpose of Matrix
- Print Non-Repeated Elements
- Anagram
- Most Frequent Character
- Reverse Words
- Parenthesis Checker
- Largest number with given sum
- Union-Find
- First Repeating Element
- Check Equal Arrays
- Positive Negative Pair
- Find Immediate Smaller Than X
- Two Sum
- Search an element in sorted and rotated array
- Max Value Permutation
- Missing And Repeating
- Sort by Set Bit Count
- Maximize sum after K negations
- Min sum formed by digits
- Missing number
- Chocolate Distribution Problem
- Rearrange a string
- Longest common prefix
- Find missing in second array
- Longest Common Prefix of Strings
- Counts Zeros Xor Pairs
- Two sum -Pairs with 0 Sum
- Maximum sum of increasing order elements from n arrays
- Merge two binary Max heaps
- Four Elements
- Palindrome String
- Maximum average subarray
- Smallest greater elements in whole array
- Encrypt the string - 2
- Is Binary Number Multiple of 3
- Adding Array Elements
- Number of 1 Bits
- Change Bits
- Swap bits
- Penalty Shooters
- Tom and Jerry
- Minimise the maximum difference
- Bit Difference
- Repeated String Match
- Rotate Clockwise
- Count Triplets
- Array Arrangement
- K-Ary Tree
- Array to BST
- Rearrange Geek and his Classmates
- Gadgets of Doraland
- Largest value in each level
- Minimum Swaps
- Maximum AND
- Leaders in an array
- Max Sum without Adjacents
- Count number of free cell
- Last modified ball
- Count the Subarrays
- Fair string
- The Ultimate Duel
- Split the binary string into substrings with equal number of 0s and 1s
- Smallest window containing 0, 1 and 2
- Can Make Triangle
- Matrix Operations
- Triangle and Square
- Strong Students in School
- Maximum Frequency
- Binary Tree to DLL
- Trapping Rain Water
- Max Circular Subarray Sum
- Histogram Max Rectangular Area
- Distinct palindromic substrings
- Edit Distance
- Bit Difference
- Bike Racing
- nCr mod M | Part 1
- Adventure in a Maze
- Optimal binary search tree
- Maximum sum Rectangle
- Huffman Encoding
- Find the Maximum Flow
- Corona Vaccine
- Search Pattern (Z-algorithm)
- Longest substring to form a Palindrome
- Minimum X (xor) A
- Palindrome Pairs
- Number of distinct words with K maximum contiguous vowels
- Shortest Unique prefix for every word
- Count the number of subarrays
- Concatenate two numbers
- Palindrome Pairs
- Minimum X (xor) A
- Kth Smallest Number in Multiplication Table
- Geek in a Maze
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