add [hiho40](http://hihocoder.com/contest/hiho40/problem/1)
add [hiho40](http://hihocoder.com/contest/hiho40/problem/1)

luoyetx/Coding4Fun,luoyetx/LearnCode,luoyetx/LearnCode,luoyetx/LearnCode,luoyetx/coder,luoyetx/Coding4Fun,luoyetx/LearnCode,luoyetx/coder,luoyetx/Coding4Fun,luoyetx/coder,luoyetx/Coding4Fun,luoyetx/coder,luoyetx/coder,luoyetx/coder,luoyetx/Coding4Fun,luoyetx/LearnCode,luoyetx/Coding4Fun,luoyetx/LearnCode