Add solutions to SPOJ problems.

[rathoresrikant]

Add codes in the SPOJ folder with proper names.
The codes should we working and passing all the test cases.
Refrain from copying other's codes.
Happy Coding !

[mitrish]

Hey i can help with this issue, can you explain in more detail about the problems to be solved?

[rathoresrikant]

Add any of problems you have solved on SPOJ. It should be a working code.

[Code-b0t]

please merge this PR #119