Merge pull request #279 from Sweet-kid/master

Wrote heap_sort code in C & C++
Reorganized source files
Reorganized files
Reorganized some files
Reorganized files
Reorganized files
Merge pull request #280 from Yonaba/master

Reorganized some files
Added Egyptian Fractions in Ruby.
Merge pull request #281 from jcla1/master

Added Egyptian Fractions in Ruby
Added quicksort in Prolog
Merge pull request #282 from jcla1/master

Added quicksort in Prolog
heap sort in Erlang, Perl, Python & Ruby
Merge sort in Perl