Submission #733782

#	Time	Username	Problem	Language	Result	Execution time	Memory
733782		penguin133	Quality Of Living (IOI10_quality)	C++17	100 / 100	1951 ms	140156 KiB

quality

#include <bits/stdc++.h>
using namespace std;

#include "quality.h"
//#define int long long
typedef long long ll;
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int rectangle(int R, int C, int H, int W, int Q[3001][3001]) {
	int lo = 1, hi = R * C, ans = lo;
	int A[R+1][C+1] = {0};
	while(lo <= hi){
		int mid = (lo + hi) >> 1;
		for(int i=1;i<=R;i++){
			for(int j=1;j<=C;j++){
				A[i][j] = (Q[i-1][j-1] <= mid ? 1 : -1);
				A[i][j] += A[i][j-1] + A[i-1][j] - A[i-1][j-1];
			}
		}
		bool f = 0;
		for(int i=H;i<=R;i++){
			for(int j=W;j<=C;j++){
				if(A[i][j] - A[i-H][j] - A[i][j-W] + A[i-H][j-W] >= 1)f = 1;
			}
		}
		if(f)ans = mid, hi = mid - 1;
		else lo = mid + 1;
	}
	return ans;
}

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20