2013年9月15日
The Donkey of Gui Zhou
摘要： Problem Description There was no donkey in the province of Gui Zhou, China. A trouble maker shipped one and put it in the forest which could be considered as an N×N grid. The coordinates of the up-lef... 阅读全文
posted @ 2013-09-15 21:36 1002liu 阅读(312) 评论(0) 推荐(0)