day_12-acm 第二週bfs+dfs大總結

bfs+dfs 不羅嗦解釋什麼了，對廣搜和深搜有疑問（戳這裏）。忙活了一個禮拜了，直接上這一週的題目吧php A：Catch That Cow hdu 2717node Problem Description Farmer John has been informed of the location of a fugitive cow and wants to catch her immediat

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