懵懂冷风
POJ-3278 Catch the cow(BFS)
Farmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a pointN (0 ≤ N ≤ 100,000) on a number line and the cow is at a point K (0 ≤ K ≤ 10
mac清理日志解决终端启动慢的问题
最近mac的终端启动越来越慢了，特别是第一次启动的时候，时间长达4秒！是可忍孰不可忍？于是谷歌了一下。找到一个方法很有效，现在秒开了
