제출 #255433

#제출 시각아이디문제언어결과실행 시간메모리
255433super_j6경찰관과 강도 (BOI14_coprobber)C++14
100 / 100
703 ms7160 KiB
#include <iostream> #include <cstdio> #include <algorithm> #include <queue> #include <array> using namespace std; #define endl '\n' #define ll long long #define pi pair<int, int> #define f first #define s second typedef array<int, 3> T; const int mxn = 500; int c; int d[mxn][mxn], f[mxn][mxn]; bool vis[mxn][mxn][2]; queue<T> q; int start(int n, bool g[mxn][mxn]){ for(int i = 0; i < n; i++) for(int j = 0; j < n; j++) for(int k = 0; k < n; k++){ d[i][j] += g[j][k]; } for(int i = 0; i < n; i++) for(int j = 0; j < 2; j++){ vis[i][i][j] = 1; q.push({i, i, j}); } while(!q.empty()){ T a = q.front(); q.pop(); for(int i = 0; i < n; i++){ if(a[2] && (g[a[0]][i] || i == a[0]) && !vis[i][a[1]][0]){ vis[i][a[1]][0] = 1; q.push({i, a[1], 0}); f[i][a[1]] = a[0]; }else if(!a[2] && g[a[1]][i] && !vis[a[0]][i][1] && --d[a[0]][i] <= 0){ vis[a[0]][i][1] = 1; q.push({a[0], i, 1}); } } } for(int i = 0; i < n; i++) if(!vis[0][i][0]) return -1; return c = 0; } int nextMove(int r){ return c = f[c][r]; }
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