Initial Commit
atoi use glog & gtest
use glog and test
reimplement atoi
use gtest
add main
reimplement climb stairs
NOT use gtest lib as global precompile lib.
https://code.google.com/p/googletest/wiki/FAQ#Why_is_it_not_recommended_to_install_a_pre-compiled_copy_of_Goog
use mock
add gmock
permute i
mv permit.cpp to permit_i.cpp
mv permit.cpp to permit_i.cpp
reimpletent permute
delete comment header
This sulotion can not follow the next_permutation sequense
reimplement atoi
remove blog include
non recursive version
add comment