himeshkohad / leetcode-problems

Centralized Repository for LeetCode Solutions

Leetcode AC Solutions

Hi there 👋,

Welcome to my Leetcode solutions repository! Here, you'll find my solutions to various LeetCode problems in C++, Java, and Python, including problems from the weekly and monthly contests, as well as other challenges.

If you find these solutions helpful in any way, please give this repo a ⭐️. It means a lot and helps me keep motivated to continue sharing my work.

Feel free to share this repository with your friends who may find it useful, and don't forget to follow me for more DSA content.

Thank you for your support, and I hope these solutions help you on your journey to becoming a better problem solver. Happy coding! 😄

This repository contains a log of my LeetCode solutions, including problems from the weekly contests, monthly contests, and other challenges.

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You can access my solutions below 👇

• 0001 Two Sum

• 0003 Longest Substring Without Repeating Characters

• 0004 Median of Two Sorted Arrays

• 0007 Reverse Integer

• 0009 Palindrome Number

• 0010 Regular Expression Matching

• 0011 Container With Most Water

• 0012 Integer to Roman

• 0013 Roman to Integer

• 0014 Longest Common Prefix

• 0015 3Sum

• 0017 Letter Combinations of a Phone Number

• 0018 4Sum

• 0019 Remove Nth Node From End of List

• 0020 Valid Parentheses

• 0021 Merge Two Sorted Lists

• 0024 Swap Nodes in Pairs

• 0025 Reverse Nodes in k-Group

• 0026 Remove Duplicates from Sorted Array

• 0027 Remove Element

• 0028 Find the Index of the First Occurrence in a String

• 0029 Divide Two Integers

• 0030 Substring with Concatenation of All Words

• 0031 Next Permutation

• 0032 Longest Valid Parentheses

• 0033 Search in Rotated Sorted Array

• 0034 Find First and Last Position of Element in Sorted Array

• 0035 Search Insert Position

• 0037 Sudoku Solver

• 0039 Combination Sum

• 0040 Combination Sum II

• 0041 First Missing Positive

• 0042 Trapping Rain Water

• 0046 Permutations

• 0047 Permutations II

• 0048 Rotate Image

• 0050 Pow(x, n)

• 0051 N-Queens

• 0052 N-Queens II

• 0054 Spiral Matrix

• 0058 Length of Last Word

• 0061 Rotate List

• 0062 Unique Paths

• 0066 Plus One

• 0069 Sqrt(x)

• 0074 Search a 2D Matrix

• 0075 Sort Colors

• 0077 Combinations

• 0078 Subsets

• 0080 Remove Duplicates from Sorted Array II

• 0081 Search in Rotated Sorted Array II

• 0083 Remove Duplicates from Sorted List

• 0084 Largest Rectangle in Histogram

• 0090 Subsets II

• 0092 Reverse Linked List II

• 0098 Validate Binary Search Tree

• 0100 Same Tree

• 0103 Binary Tree Zigzag Level Order Traversal

• 0105 Construct Binary Tree from Preorder and Inorder Traversal

• 0106 Construct Binary Tree from Inorder and Postorder Traversal

• 0108 Convert Sorted Array to Binary Search Tree

• 0111 Minimum Depth of Binary Tree

• 0112 Path Sum

• 0118 Pascal's Triangle

• 0125 Valid Palindrome

• 0130 Surrounded Regions

• 0136 Single Number

• 0137 Single Number II

• 0141 Linked List Cycle

• 0142 Linked List Cycle II

• 0152 Maximum Product Subarray

• 0153 Find Minimum in Rotated Sorted Array

• 0154 Find Minimum in Rotated Sorted Array II

• 0162 Find Peak Element

• 0167 Two Sum II - Input Array Is Sorted

• 0169 Majority Element

• 0189 Rotate Array

• 0199 Binary Tree Right Side View

• 0200 Number of Islands

• 0204 Count Primes

• 0206 Reverse Linked List

• 0209 Minimum Size Subarray Sum

• 0216 Combination Sum III

• 0217 Contains Duplicate

• 0222 Count Complete Tree Nodes

• 0223 Rectangle Area

• 0231 Power of Two

• 0234 Palindrome Linked List

• 0235 Lowest Common Ancestor of a Binary Search Tree

• 0236 Lowest Common Ancestor of a Binary Tree

• 0237 Delete Node in a Linked List

• 0240 Search a 2D Matrix II

• 0242 Valid Anagram

• 0263 Ugly Number

• 0268 Missing Number

• 0274 H-Index

• 0275 H-Index II

• 0278 First Bad Version

• 0283 Move Zeroes

• 0287 Find the Duplicate Number

• 0290 Word Pattern

• 0300 Longest Increasing Subsequence

• 0316 Remove Duplicate Letters

• 0326 Power of Three

• 0342 Power of Four

• 0344 Reverse String

• 0349 Intersection of Two Arrays

• 0350 Intersection of Two Arrays II

• 0367 Valid Perfect Square

• 0371 Sum of Two Integers

• 0374 Guess Number Higher or Lower

• 0377 Combination Sum IV

• 0378 Kth Smallest Element in a Sorted Matrix

• 0383 Ransom Note

• 0387 First Unique Character in a String

• 0389 Find the Difference

• 0390 Elimination Game

• 0392 Is Subsequence

• 0400 Nth Digit

• 0417 Pacific Atlantic Water Flow

• 0441 Arranging Coins

• 0443 String Compression

• 0449 Serialize and Deserialize BST

• 0450 Delete Node in a BST

• 0458 Poor Pigs

• 0485 Max Consecutive Ones

• 0509 Fibonacci Number

• 0520 Detect Capital

• 0540 Single Element in a Sorted Array

• 0543 Diameter of Binary Tree

• 0547 Number of Provinces

• 0557 Reverse Words in a String III

• 0567 Permutation in String

• 0633 Sum of Square Numbers

• 0645 Set Mismatch

• 0658 Find K Closest Elements

• 0659 Split Array into Consecutive Subsequences

• 0668 Kth Smallest Number in Multiplication Table

• 0698 Partition to K Equal Sum Subsets

• 0700 Search in a Binary Search Tree

• 0704 Binary Search

• 0729 My Calendar I

• 0733 Flood Fill

• 0744 Find Smallest Letter Greater Than Target

• 787 Cheapest Flights Within K Stops

• 0792 Number of Matching Subsequences

• 0823 Binary Trees With Factors

• 0836 Rectangle Overlap

• 0844 Backspace String Compare

• 0852 Peak Index in Mountain Array

• 0858 Mirror Reflection

• 0869 Reordered Power of 2

• 0905 Sort Array By Parity

• 0909 Snakes and Ladders

• 0912 Sort An Array

• 0944 Delete Columns to Make Sorted

• 0948 Bag of Tokens

• 0976 Largest Perimeter Triangle

• 0987 Vertical Order Traversal of a Binary Tree

• 0994 Rotting Oranges

• 0997 Find the Town Judge

• 1009 Complement of Base 10 Integer

• 1020 Number of Enclaves

• 1037 Valid Boomerang

• 1047 Remove All Adjacent Duplicates In String

• 1071 Greatest Common Divisor of Strings

• 1220 Count Vowels Permutation

• 1281 Subtract the Product and Sum of Digits of an Integer

• 1283 Find the Smallest Divisor Given a Threshold

• 1295 Find Numbers with Even Number of Digits

• 1323 Maximum 69 Number

• 1328 Break a Palindrome

• 1329 Sort the Matrix Diagonally

• 1337 The K Weakest Rows in a Matrix

• 1346 Check If N and Its Double Exist

• 1351 Count Negative Numbers in a Sorted Matrix

• 1385 Find the Distance Value Between Two Arrays

• 1431 Kids With the Greatest Number of Candies

• 1539 Kth Missing Positive Number

• 1544 Make The String Great

• 1608 Special Array With X Elements Greater Than or Equal X

• 1832 Check if the Sentence Is Pangram

• 1855 Maximum Distance Between a Pair of Values

• 1910 Remove All Occurrences of a Substring

• 1929 Concatenation of Array

• 1991 Find the Middle Index in Array

• 2095 Delete the Middle Node of a Linked List

• 2169 Count Operations to Obtain Zero

• 2235 Add Two Integers

• 2244 Minimum Rounds to Complete All Tasks

• 2359 Find Closest Node to Given Two Nodes

• 2380 Time Needed to Rearrange a Binary String

• 2395 Find Subarrays With Equal Sum

• 2404 Most Frequent Even Element

• 2405 Optimal Partition of String

• 2413 Smallest Even Multiple

• 2439 Minimize Maximum of Array

• 2444 Count Subarrays With Fixed Bounds

• 2540 Minimum Common Value

• 2859 Sum of Values at Indices With K Set Bits

• 2869 Minimum Operations to Collect Elements

• 2870 Minimum Number of Operations to Make Array Empty

• 2908 Minimum Sum of Mountain Triplets I

• 2917 Find the K-or of an Array

• 2918 Minimum Equal Sum of Two Arrays After Replacing Zeros

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Contributors

Contributions are always welcome! If you'd like to add a solution to a new problem or improve an existing solution, feel free to open a pull request.

If you have any issues or suggestions for improving this repository, please open an issue.

Happy coding! 💻 ✨