Competitive Programming Problems

Problem Solutions from Different Platforms.

Contest Problems

Contest Solutions will be added after the contest.

Codeforces: After Contest. Codechef: After Contest.

Contributing

If you find or knows or experienced any challenging problem that others should give it a try, then Please a create a issue by providing the problem statement or a link/source for that problem. It would be really appreciated.

How to Contribute

Steps to follow :scroll:

1. Fork it :fork_and_knife:

You can get your own fork/copy of cpp-book by using the Fork button on right corner.

2. Clone it :busts_in_silhouette:

You need to clone (download) it to local machine using

$ git clone https://github.com/Your_Username/cpp-book.git

This makes a local copy of repository in your machine.

Once you have cloned the cpp-book repository in Github, move to that folder first using change directory command on linux and Mac.

# This will change directory to a folder cpp-book
$ cd cpp-book

Move to this folder for all other commands.

3. Set it up :arrow_up:

Run the following commands to see that your local copy has a reference to your forked remote repository in Github :octocat:

$ git remote -v
origin  https://github.com/Your_Username/cpp-book.git (fetch)
origin  https://github.com/Your_Username/cpp-book.git (push)

Now, lets add a reference to the original cpp-book repository using

$ git remote add upstream https://github.com/ravireddy07/cpp-book.git

This adds a new remote named upstream.

See the changes using

$ git remote -v
origin    https://github.com/Your_Username/cpp-book.git (fetch)
origin    https://github.com/Your_Username/cpp-book.git (push)
upstream  https://github.com/ravireddy07/cpp-book.git (fetch)
upstream  https://github.com/ravireddy07/cpp-book.git (push)

4. Sync it :recycle:

Always keep your local copy of repository updated with the original repository. Before making any changes and/or in an appropriate interval, run the following commands carefully to update your local repository.

# Fetch all remote repositories and delete any deleted remote branches
$ git fetch --all --prune

# Switch to `main` branch
$ git checkout main

# Reset local `main` branch to match `upstream` repository's `main` branch
$ git reset --hard upstream/main

# Push changes to your forked `ravireddy07` repo
$ git push origin main

5. Ready Steady Go... :turtle: :rabbit2:

Once you have completed these steps, you are ready to start contributing by checking our Help Wanted Issues and creating pull requests.

6. Create a new branch :bangbang:

Whenever you are going to make contribution. Please create seperate branch using command and keep your main branch clean (i.e. synced with remote branch).

# It will create a new branch with name Branch_Name and switch to branch Folder_Name
$ git checkout -b Folder_Name

Create a seperate branch for contibution and try to use same name of branch as of folder.

To switch to desired branch

# To switch from one folder to other
$ git checkout Folder_Name

To add the changes to the branch. Use

# To add all files to branch Folder_Name
$ git add .

Type in a message relevant for the code reveiwer using

# This message get associated with all files you have changed
$ git commit -m 'relevant message'

Now, Push your awesome work to your remote repository using

# To push your work to your remote repository
$ git push -u origin Folder_Name

Finally, go to your repository in browser and click on compare and pull requests. Then add a title and description to your pull request that explains your precious effort and make the pull request.