Algorithm Solutions

This repository contains solutions to various algorithm problems in Leetcode. Each problem is implemented in Python and is stored in a separate file. Below is a brief description of each problem and its solution.

Problems and Solutions

1. Best Time to Buy and Sell Stock

• File: 121. best time to buy and sell stock.py
• Description: Finds the maximum profit that can be achieved from buying and selling a stock.

2. Search Suggestions System

• File: 1268. Search Suggestions System.py
• Description: Suggests at most three product names from a list of products after each character of the search word is typed.

3. Roman to Integer

• File: 13. roman to integer.py
• Description: Converts a Roman numeral to an integer.

4. Excel Sheet Column Title

• File: 168. Excel Sheet Column Title.py
• Description: Converts a given column number to its corresponding Excel sheet column title.

5. Valid Anagram

• File: 242. Valid Anagram.py
• Description: Checks if two strings are anagrams of each other.

6. 3Sum

• File: 3sum.py
• Description: Finds all unique triplets in the array which gives the sum of zero.