Submission #1187705

#	Time	Username	Problem	Language	Result	Execution time	Memory
1187705		MatteoArcari	Soccer Stadium (IOI23_soccer)	C++20	3.50 / 100	193 ms	31772 KiB

soccer

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

int biggest_stadium(int n, vector<vector<int>> f) {
    int ans = 0;
    for (auto _: {0, 1}) {
        ans = 0;
        vector<int> l(n), r(n);
        for (int i = 0; i < n; i++) {
            bool found = 0;
            bool flag = 0;
            int _l = -1, _r = -1;
            for (int j = 0; j < n; j++) {
                if (!f[i][j]) {
                    _r = j;
                    if (_l == -1) _l = j;
                    ans++;
                    found = 1;
                    if (flag) return 0;
                } else if (found) flag = 1;
            }
            for (int j = 0; j < i; j++) {
                if (l[j] < _l && r[j] < _r) return 0;
                if (l[j] > _l && r[j] > _r) return 0;
            }
            l[i] = _l;
            r[i] = _r;
        }
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < i; j++) {
                swap(f[i][j], f[j][i]);
            }
        }
    }
   
    return ans;
}

• Subtask 0: 0 / 0
• Subtask 1: 1.5 / 6
• Subtask 2: 2 / 8
• Subtask 3: 0 / 22
• Subtask 4: 0 / 18
• Subtask 5: 0 / 16
• Subtask 6: 0 / 30