qq_41037114的博客

Q - The Moving Points  HDU - 4717 There are N points in total. Every point moves in certain direction and certain speed. We want to know at what time that the largest distance between any two points ...

POJ - 3737  R - UmBasketella  In recent days, people always design new things with multifunction. For instance, you can not only use cell phone to call your friends, but you can also use your cell ph...