Algorithm-II-LeetCode do here

This repository contains my solutions to the Algorithm II challenges on LeetCode. Each challenge provides a problem statement and the goal is to implement the solution using the concepts and techniques related to algorithms.

Challenge Descriptions

Challenge 1: Two Sum

Problem Statement: Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

Solution: Implemented a hash table approach to store the complement of each number in the array and check if it exists in the hash table.

Challenge 2: Add Two Numbers

Problem Statement: You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order, and each of their nodes contains a single digit. Add the two numbers and return the sum as a linked list.

Solution: Implemented a recursive approach to add each digit of the two linked lists and carry over any excess to the next digit.

Challenge 3: Longest Substring Without Repeating Characters

Problem Statement: Given a string s, find the length of the longest substring without repeating characters.

Solution: Implemented a sliding window approach to keep track of the longest substring without repeating characters.

Repository Structure

The repository is organized as follows: n

• solutions/
  • Challenge1.java
  • Challenge2.py
  • Challenge3.cpp
• tests/
  • Challenge1Test.java
  • Challenge2Test.py
  • Challenge3Test.cpp

Usage

Clone the repository to your local machine:

git clone https://github.com/ADVindiancoder/algorithm-ii-leetcode.git