제출 #1039944

#제출 시각아이디문제언어결과실행 시간메모리
1039944ArthuroWich삶의 질 (IOI10_quality)C++17
100 / 100
1079 ms140536 KiB
#include "quality.h" #include<bits/stdc++.h> using namespace std; int rectangle(int n, int m, int h, int w, int q[3001][3001]) { int l = 1, r = n*m; while(l < r) { int mi = (l+r)/2; vector<vector<int>> pref(n+1, vector<int>(m+1, 0)); bool f = 0; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { pref[i][j] = pref[i-1][j]+pref[i][j-1]-pref[i-1][j-1]+(q[i-1][j-1]<=mi); if (i-h >= 0 && j-w >= 0) { if (pref[i][j]-pref[i][j-w]-pref[i-h][j]+pref[i-h][j-w] > h*w/2) { f = 1; } } } } if (f) { r = mi; } else { l = mi+1; } } return l; }
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