Merge pull request #2 from TisButMe/master

New solutions
Solution for the LZW compression algorithm
Merge pull request #3 from 4tXJ7f/master

Solution for the LZW compression algorithm
Update README.md
Added the solution to A+B
Added/Edited solutions to the A+B and Primality by trial division problems
Added/Edited solutions to the A+B and Primality by trial division problems
Added a solution to the prime decomposition algorithm
Rebased on master