[C++] for loop.
[C++] for loop.

g++ -std=c++11 -O2 for.cc

sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets,sgkim126/snippets