Series

Leetcode Challenges

A journey through Leetcode! In this series, I will solve two Leetcode problems per post, breaking them down with explanations, approaches, and optimizations. Perfect for anyone looking to improve their problem-solving skills.

Articles in this series

Leetcode Coding Journey: Mastering Problem-Solving Techniques

Feb 5, 20251 min read

Leetcode #10 Regular Expression Matching 📌 Problem Statement Given an input string s and a pattern p, implement regular expression matching with...

Day-2 Leetcode Coding Journey: Mastering Problem-Solving Techniques

Feb 8, 20252 min read

Leetcode #39 Combination Sum 📌 Problem Statement Given a set of distinct positive integers candidates and a target integer target, find all unique...

Day-3 Leetcode Coding Journey: Mastering Problem-Solving Techniques

Feb 11, 20251 min read

Leetcode #16 3 Sum Closest 📌 Problem Statement Given an array of integers nums and a target integer target, find three integers in nums such that the...

Day-4 Leetcode Coding Journey: Mastering Problem-Solving Techniques

Feb 12, 20251 min read

Leetcode #47 Permutations II 📌 Problem Statement Given a collection of numbers, nums, that might contain duplicates, return all possible unique...

Day-5 Leetcode Coding Journey: Mastering Problem-Solving Techniques

Feb 16, 20251 min read

Leetcode #50 Pow(x, n) 📌 Problem Statement Implement the function mypow(x, n), which calculates x^n (x raised to the power of...

Day-6 Leetcode Coding Journey: Mastering Problem-Solving Techniques

Feb 16, 20251 min read

Leetcode #54 Spiral Matrix 📌 Problem Statement Given an m x n matrix, return all elements of the matrix in spiral...