new file:   cpp/fun.cpp
new file:   cpp/stl_transform.cpp
new file:   cpp/test_it.cpp
new file:   crack_interview/5.5_count_of_one.cpp
new file:   crack_interview/5.7_findMising.cpp
new file:   crack_interview/5.7_findMising_v2.cpp
new file:   leetcode/LRU_Cache.cpp
modified:   note.txt
modified:   state.txt