Submission #1011695

#	Time	Username	Problem	Language	Result	Execution time	Memory
1011695		u_suck_o	Rectangles (IOI19_rect)	C++17	37 / 100	5050 ms	28500 KiB

rect

#include "bits/stdc++.h"
#include "rect.h"

using namespace std;
int n, m;

long long count_rectangles(vector<vector<int>> a) {
    int cnt = 0;
    n = a.size();
    m = a[0].size();
    for (int t = 1; t < n-1; t++) {
        for (int b = t; b < n-1; b++) {
            for (int l = 1; l < m-1; l++) {
                for (int r = l; r < m-1; r++) {
                    bool valid = true;
                    for (int i = t; i <= b; i++) {
                        for (int j = l; j <= r; j++) {
                            if (a[i][j] >= a[i][l-1]) valid = false;
                            if (a[i][j] >= a[i][r+1]) valid = false;
                            if (a[i][j] >= a[t-1][j]) valid = false;
                            if (a[i][j] >= a[b+1][j]) valid = false;
                            if (!valid) break;
                        }
                        if (!valid) break;
                    }
                    if (valid) cnt++;
                }
            }
        }
    }
    return cnt;
}

• Subtask 1: 8 / 8
• Subtask 2: 7 / 7
• Subtask 3: 12 / 12
• Subtask 4: 0 / 22
• Subtask 5: 10 / 10
• Subtask 6: 0 / 13
• Subtask 7: 0 / 28