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传送门 Description Pavel loves grid mazes. A grid maze is an n × m rectangle maze where each cell is either empty, or is a wall. You can go from one cell 阅读全文
posted @ 2017-05-28 20:22
zxzhang
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autumn#include<bits/stdc++.h> using namespace std; const int maxn = 200005; int p[maxn],a[maxn],b[maxn]; bool vis[maxn]; set<pair<int,int> >s[5]; int 阅读全文
posted @ 2017-05-28 16:15
zxzhang
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