Leetcode

Solution for problems in leetcode.com

How to contribute

Step 0: Star and Fork this Repository

You can star and fork this repository on GitHub by navigating at the top of this repository.

When you’re on the main page of a repository, you’ll see a button to "Star" and “Fork” the repository on the upper right-hand side of the page, underneath your user icon.

Step 1: Picking up an issue

If working on an issue, comment first that you are working on it and then send out the pull request.

Step 2: Folder structure and conventions

Folder structure:

1. If only single solution exists
   #<problem_number>/<programming_language>/<file_name>

Example

#200/java/Solution.java

2. If more than one approach exist
   #<problem_number>/<programming_language>/<approach_algorithm_name>/<file_name>

Example

#354/java/dfs/Solution.java
#354/java/union_find/Solution.java
#354/kotlin/dfs/Solution.kt
#354/kotlin/union_find/Solution.kt

3. The code should start with comment section having the problem link.

Example

/**
 * https://leetcode.com/problems/gas-station/
 */
 class Solution { .... }

Note: the algorithm name (if multiple words) follows snake case.

4. In the comment section, after adding the problem link, add the runtime beat % and memory usage beats % provided by leetcode after submission of the code.

Example

/**
 * https://leetcode.com/problems/gas-station/
 * runtime beats 45.76% of Java submissions
 * memory usage beats 77.23% of Java submissions
 */
 class Solution { .... }

Step 3: Pull Request

1. While sending out pull request, also attach proof of submission as accepted solution for the code.
2. A single pull request should only address a single issue, i.e. solution for a single leetcode problem. It can include multiple files for multiple unique solutions(approaches) but only for a single problem.

What next?

1. After sending out the PR, consider SLA of 2 days for review of the PR and getting a response back. In case of SLA failure, feel free to leave comment asking for review or merge.
2. Feel free to open new issues for different leetcode questions. I will assign the hacktoberfest tag while you can send out PR without waiting.