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luogu 8642 路径之谜(回溯法)
https://www.luogu.com.cn/problem/P8642 https://www.bilibili.com/video/BV1yz421i7s4/ 确定状态 state (第一步) 由于每个格子只能访问一次,所以需要设定一个 bool 数组 vis 用于…
luogu
1 min
4 days ago
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