Submission #998231

#	Time	Username	Problem	Language	Result	Execution time	Memory
998231		rahidilbayramli	Quality Of Living (IOI10_quality)	C++17	100 / 100	1263 ms	105708 KiB

quality

#include<bits/stdc++.h>
#include "quality.h"
#define ll long long
#define ld long double
#define vl vector<ll>
#define vi vector<int>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define f first
#define s second
#define pb push_back
#define p_b pop_back
using namespace std;
int rectangle(int R, int C, int H, int W, int Q[3001][3001]) {
	int l = 1, r = R * C, ans = R * C;
	while(l <= r)
    {
        int grid[3001][3001];
        int mid = (l + r) / 2, maxx = 0;
        for(int i = 0; i < R; i++)
        {
            for(int j = 0; j < C; j++)
            {
                int sum = 0;
                grid[i][j] = (Q[i][j] <= mid);
                if(i)
                    grid[i][j] += grid[i-1][j];
                if(j)
                    grid[i][j] += grid[i][j-1];
                if(i && j)
                    grid[i][j] -= grid[i-1][j-1];
                sum = grid[i][j];
                if(i - H >= 0)
                    sum -= grid[i-H][j];
                if(j - W >= 0)
                    sum -= grid[i][j-W];
                if(i - H >= 0 && j - W >= 0)
                    sum += grid[i-H][j-W];
                maxx = max(maxx, sum);
            }
        }
        if(maxx > H * W / 2)
        {
            ans = min(ans, mid);
            r = mid - 1;
        }
        else
            l = mid + 1;
    }
    return ans;
}

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