#include <iostream>#include<algorithm>#include<vector>#define ll long longusing namespace std;int ans[1005][1005], m[1005][1005];int tex[4][2] = { 0,1,1,0,0,-1,-1,0 }, bh = 0, res1 = 0;int n;bool u = false;void dfs(int y, int x, int bm){ for (int i = 0; i <= 3; i++) { if (u) ret...
