[FEATURE] Competitions solutions

Detailed description

As we all know CPP is quite popular among the competitive programming coders. And a lot of programming challenges are going on. There are very less places where we get solutions or approach to those questions. We will accept the solution after the competition gets over.

Context

This will help budding coders. We can include only standard platform/competitions solutions like

1. Codeforces.
2. Google code jam.
3. Google HashCode.
4. Google Kickstart.

This will also encourage community folks to participate and contribute to the solution.

Possible implementation

No response

Additional information

No response