Leetcode solutions for NeetCode in C#

This is my personal fork of https://github.com/neetcode-gh/leetcode : I am mostly adding C# solutions.

Naming convention

For each exercise in https://neetcode.io/ we add :

• a folder in csharp/<exercise_group>/main
• a .cs file in csharp/<exercise_group>/testCases

The name of the folder/files is N<i>-L<j>-<name>, where :

• <i> is the position of the exercise in https://neetcode.io/
• <j> is the number of the same exercise in LeetCode
• <name> is the name of the problem on neetCode within its group