wcxyky的博客

Problem DescriptionYou are trapped in a 3D dungeon and need to find the quickest way out! The dungeon is composed of unit cubes which may or may not be filled with rock. It takes one minute to move...

Problem DescriptionMany of us had played the game "Battle city" in our childhood, and some people (like me) even often play it on computer now.What we are discussing is a simple edition of this g...

Problem DescriptionPrairie dog comes again! Someday one little prairie dog Tim wants to visit one of his friends on the farmland, but he is as lazy as his friend (who required Tim to come to his pl...