oj.uz

Submission #993809

# Submission time Handle Problem Language Result Execution time Memory
993809 2024-06-06T12:48:41 Z stdfloat Soccer Stadium (IOI23_soccer) C++17
14 / 100
 217 ms 55376 KB 
#include <bits/stdc++.h>
#include "soccer.h"
using namespace std;
 
int n, mx;
 
vector<vector<int>> a, v;
 
void f(int x) {
    if (x == n * n) {
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                if (!v[i][j]) continue;

                vector<vector<bool>> vis(n, vector<bool>(n));
                vis[i][j] = true;
                for (int z = 0; z < 2; z++) {
                    vector<vector<bool>> vis2(n, vector<bool>(n));
                    for (int k = 0; k < n; k++) {
                        for (int l = 0; l < n; l++) {
                            if (!vis[k][l]) continue;
 
                            for (int m = l - 1; m >= 0 && v[k][m]; m--)
                                vis2[k][m] = true;
                            for (int m = l + 1; m < n && v[k][m]; m++)
                                vis2[k][m] = true;
 
                            for (int m = k - 1; m >= 0 && v[m][l]; m--)
                                vis2[m][l] = true;
                            for (int m = k + 1; m < n && v[m][l]; m++)
                                vis2[m][l] = true;
                        }
                    }

                    for (int k = 0; k < n; k++) {
                        for (int l = 0; l < n; l++)
                            if (vis2[k][l]) vis[k][l] = true;
                    }
                }
 
                for (int k = 0; k < n; k++) {
                    for (int l = 0; l < n; l++)
                        if (v[k][l] && !vis[k][l]) return;
                }
            }
        }
 
        int cnt = 0;
        for (auto i : v)
            cnt += count(i.begin(), i.end(), 1);

        mx = max(mx, cnt);
 
        return;
    }
 
    for (int i = 0; i < 2; i++) {
        if (i && a[x / n][x % n]) return;

        v[x / n][x % n] = i;
        f(x + 1);
    }
}

int biggest_stadium(int N, vector<vector<int>> F) {
    n = N; a = F;
 
    int cnt = 0;
    for (auto i : a)
        cnt += count(i.begin(), i.end(), 1);
 
    if (!cnt) return n * n;
    else if (cnt == 1) {
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                if (a[i][j] == 1)
                    return n * n - min({(n - i) * (n - j), (n - i) * (j + 1), (i + 1) * (n - j), (i + 1) * (j + 1)});
            }
        }
    }

    if (n < 4) {
        v.assign(n, vector<int>(n));
        f(0);
     
        return mx;
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++)
            if (a[i][j] && 2 < ((i && !a[i - 1][j]) + (i + 1 < n && !a[i + 1][j]) + (j && !a[i][j - 1]) + (j + 1 < n && !a[i][j + 1]))) return 0;
    }

    return n * n - cnt;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 348 KB partial

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 1 ms 360 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 1 ms 348 KB ok
8 Correct 13 ms 3672 KB ok
9 Correct 217 ms 55376 KB ok

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 1 ms 360 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 1 ms 344 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 432 KB ok

Subtask #3
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 348 KB partial
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 360 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 1 ms 344 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 432 KB ok
15 Partially correct 0 ms 348 KB partial
16 Partially correct 1 ms 348 KB partial
17 Partially correct 0 ms 348 KB partial
18 Partially correct 0 ms 428 KB partial
19 Partially correct 1 ms 348 KB partial
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Incorrect 1 ms 344 KB wrong
23 Halted 0 ms 0 KB -

Subtask #4
0.0 / 18.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 348 KB partial
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 360 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 1 ms 344 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 432 KB ok
17 Partially correct 0 ms 348 KB partial
18 Partially correct 1 ms 348 KB partial
19 Partially correct 0 ms 348 KB partial
20 Partially correct 0 ms 428 KB partial
21 Partially correct 1 ms 348 KB partial
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Incorrect 1 ms 344 KB wrong
25 Halted 0 ms 0 KB -

Subtask #5
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 348 KB partial
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 360 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 1 ms 344 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 432 KB ok
17 Partially correct 0 ms 348 KB partial
18 Partially correct 1 ms 348 KB partial
19 Partially correct 0 ms 348 KB partial
20 Partially correct 0 ms 428 KB partial
21 Partially correct 1 ms 348 KB partial
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Incorrect 1 ms 344 KB wrong
25 Halted 0 ms 0 KB -

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 348 KB partial
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 360 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 1 ms 348 KB ok
9 Correct 13 ms 3672 KB ok
10 Correct 217 ms 55376 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 1 ms 344 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 0 ms 348 KB ok
18 Correct 0 ms 348 KB ok
19 Correct 0 ms 348 KB ok
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 432 KB ok
22 Partially correct 0 ms 348 KB partial
23 Partially correct 1 ms 348 KB partial
24 Partially correct 0 ms 348 KB partial
25 Partially correct 0 ms 428 KB partial
26 Partially correct 1 ms 348 KB partial
27 Correct 0 ms 348 KB ok
28 Correct 0 ms 348 KB ok
29 Incorrect 1 ms 344 KB wrong
30 Halted 0 ms 0 KB -