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110 JavaScript leetcode solutions with different approaches
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Amanp30/javascript-leetcode
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This repository contains solutions to 100+ LeetCode problems written inJavaScript.
Each problem is solved in multiple ways — from brute force to optimized techniques.
The goal is to demonstrate different approaches and help improve problem-solving skills.
All solutions have been tested using a custom script. Most of them should work correctly,
though there may be occasional breakages depending on edge cases or updates on LeetCode's platform.
📚 I also write aboutNode.js, backend development, and JavaScript on my blog:
👉https://amanpareek.in
🛠️ You can also check out my other projects here:
👉https://amanpareek.in/projects.html
🚫 This project does not currently accept external contributions, as all content is generated dynamically from a MongoDB database.
| # | Title | Link |
|---|---|---|
| 1 | Check if Grid Satisfies Conditions | Link |
| 2 | Detect Capital | Link |
| 3 | Get first positive integer in array | Link |
| 4 | Additive Number | Link |
| 5 | Array Partition | Link |
| 6 | Array of strings containing numbers | Link |
| 7 | Can Place Flowers | Link |
| 8 | Check if a String Contains Only Digits | Link |
| 9 | Check if a String Contains Only Uppercase Letters | Link |
| 10 | Check if a String is a Palindrome | Link |
| 11 | Check if an Array is Sorted | Link |
| 12 | Climbing Stairs | Link |
| 13 | Contains Duplicate II | Link |
| 14 | Contains Duplicate elements in array | Link |
| 15 | Contiguous Array | Link |
| 16 | Convert String to Title Case | Link |
| 17 | Count Anagrams | Link |
| 18 | Count Complete Substrings | Link |
| 19 | Count Number of Vowels in a String | Link |
| 20 | Count and Say | Link |
| 21 | Count primes | Link |
| 22 | Count the Number of Special Characters I | Link |
| 23 | Defuse the Bomb | Link |
| 24 | Degree of an Array | Link |
| 25 | Distribute Candies | Link |
| 26 | Extract phone numbers from a block of text | Link |
| 27 | Extract version numbers from strings | Link |
| 28 | Factorial of a number | Link |
| 29 | Fibonacci Number | Link |
| 30 | Find Length of the Last Word | Link |
| 31 | Find Smallest Letter Greater Than Target | Link |
| 32 | Find Winner on a Tic Tac Toe Game | Link |
| 33 | Find and Remove element from array | Link |
| 34 | Find second smallest and second largest element in array | Link |
| 35 | Find the First Unique Character in a String | Link |
| 36 | Find the Longest Word in a Sentence | Link |
| 37 | Find the largest number in array | Link |
| 38 | Finding the Resultant Array After Removing Anagrams | Link |
| 39 | Flatten array | Link |
| 40 | Generate Fibonacci Sequence | Link |
| 41 | Generate Parentheses | Link |
| 42 | Group Anagrams | Link |
| 43 | Integer to Roman | Link |
| 44 | Intersection of Two Arrays | Link |
| 45 | Intersection of Two Arrays II | Link |
| 46 | Is array equal | Link |
| 47 | Isomorphic Strings | Link |
| 48 | Largest 3-Same-Digit Number in String | Link |
| 49 | Largest Odd Number in String | Link |
| 50 | Leaders in an Array | Link |
| 51 | Left Rotate Array in JavaScript | Link |
| 52 | Length of the Longest Palindrome | Link |
| 53 | Longest Common Prefix | Link |
| 54 | Longest Harmonious Subsequence | Link |
| 55 | Longest Palindromic Substring | Link |
| 56 | Longest Substring with At Least K Repeating Characters | Link |
| 57 | Longest Valid Parentheses | Link |
| 58 | Majority Element | Link |
| 59 | Match hex color codes | Link |
| 60 | Max Consecutive Ones | Link |
| 61 | Maximal Square | Link |
| 62 | Maximal rectangle | Link |
| 63 | Maximum Average Subarray I | Link |
| 64 | Maximum Product Subarray | Link |
| 65 | Maximum Product of Three Numbers | Link |
| 66 | Maximum Product of Word Lengths | Link |
| 67 | Maximum Score From Removing Substrings | Link |
| 68 | Maximum Subarray Sum | Link |
| 69 | Maximum Sum Circular Subarray | Link |
| 70 | Min Cost Climbing Stairs | Link |
| 71 | Minimum Cost of Buying Candies With Discount | Link |
| 72 | Minimum Index Sum of Two Lists | Link |
| 73 | Move All Zeros to the End of an Array | Link |
| 74 | Multiply Strings | Link |
| 75 | Number of Students Unable to Eat Lunch | Link |
| 76 | Number of Substrings Containing All Three Characters | Link |
| 77 | Pascal's Triangle | Link |
| 78 | Pascal's Triangle II | Link |
| 79 | Path with Maximum Gold | Link |
| 80 | Plus One | Link |
| 81 | Product of array except self | Link |
| 82 | Relative Ranks | Link |
| 83 | Remove All Falsy Values from an Array | Link |
| 84 | Remove Duplicate Letters | Link |
| 85 | Remove Outermost Parentheses | Link |
| 86 | Remove the Last Element from an Array | Link |
| 87 | Replace Words | Link |
| 88 | Reverse Every Word in a String | Link |
| 89 | Reverse String | Link |
| 90 | Reverse Vowels of a String | Link |
| 91 | Reverse the Odd-Length Words in a String | Link |
| 92 | Reverse words in a string | Link |
| 93 | Right Rotate Array in JavaScript | Link |
| 94 | Roman to Integer | Link |
| 95 | Search Insert Position | Link |
| 96 | Set Matrix Zeroes | Link |
| 97 | Shortest Palindrome | Link |
| 98 | Single Number | Link |
| 99 | Sort Characters By Frequency | Link |
| 100 | Sort Colors | Link |
| 101 | Split a String into a Fibonacci Sequence | Link |
| 102 | Sum of Digits | Link |
| 103 | Three Consecutive Odds | Link |
| 104 | Time Needed to Buy Tickets | Link |
| 105 | Two Sum | Link |
| 106 | Union of Two Sorted Arrays | Link |
| 107 | Valid Anagram | Link |
| 108 | Validate Email Address | Link |
| 109 | Word Pattern | Link |
| 110 | check whether one string is a rotation of another | Link |
This project is licensed under the MIT License – see theLICENSE file for details.
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110 JavaScript leetcode solutions with different approaches
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