the improved edition of bubble sort
delete the counter in bubble_sort_improve.cpp,that is without use
add the select sort algorithm in c++
add the kmp algorithm in c++,design in functor
delete these files not mine
add the merge sort algorithm in c++
add the quick sort algorigthm in c++
move the merge & quick sort to week2_sort
delete two necessory files
Merge pull request #4 from code-1316/hyf

Hyf