2016年3月23日
水题——415A. Mashmokh and Lights
摘要： Mashmokh works in a factory. At the end of each day he must turn off all of the lights. The lights on the factory are indexed from 1 to n. There are n 阅读全文
posted @ 2016-03-23 21:42 1叶飘零1 阅读(202) 评论(0) 推荐(0)