2016年1月4日
[LeetCode] 319. Bulb Switcher 灯泡开关
摘要： There are n bulbs that are initially off. You first turn on all the bulbs, then you turn off every second bulb. On the third round, you toggle every t 阅读全文
posted @ 2016-01-04 20:06 Grandyang 阅读(14585) 评论(7) 推荐(0) 编辑
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