Submission #1237151

#	Time	Username	Problem	Language	Result	Execution time	Memory
1237151		Ghulam_Junaid	Rectangles (IOI19_rect)	C++20	10 / 100	4 ms	328 KiB

rect

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

typedef long long ll;

// const int N = 705, LG = 12;
int n, m;

ll count_rectangles(vector<vector<int>> a){
    n = a.size(), m = a[0].size();
    ll ans = 0;
    if (n < 3 or m < 3) return 0;

    for (int i = 1; i < m; i ++){
        bool good = 1;
        int mx = 0;
        for (int j = i; j + 1 < m; j ++){
            mx = max(mx, a[1][j]);
            good &= (a[0][j] > a[1][j] and a[1][j] < a[2][j]);
            if (mx >= a[1][i - 1] or !good) break;
            ans += (mx < a[1][j + 1]);
        }
    }
    return ans;
}

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