oj.uz

Submission #966805

# Submission time Handle Problem Language Result Execution time Memory
966805 2024-04-20T11:51:33 Z VMaksimoski008 Soccer Stadium (IOI23_soccer) C++17
24 / 100
 4500 ms 36204 KB 
#include "soccer.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int biggest_stadium(int N, std::vector<std::vector<int>> F) {
    int cnt = 0;

    for(int i=0; i<N; i++)
        for(int j=0; j<N; j++) cnt += (F[i][j] == 1);

    if(!cnt) return N * N;

    if(cnt == 1) {
        int x=0, y=0;
        for(int i=0; i<N; i++)
            for(int j=0; j<N; j++)
                if(F[i][j] == 1) x = i, y = j;

        return N * N - min({ (x + 1) * (y + 1), (N - x) * (y + 1), (x + 1) * (N - y), (N - x) * (N - y) });
    }

    int ans = 0, n = N;

    int mat[N+1][N+1];
    vector<vector<int> > ver(n+1, vector<int>(n+1));
    vector<vector<int> > hor(n+1, vector<int>(n+1));
    memset(mat, 0, sizeof(mat));
    for(int i=1; i<=N; i++)
        for(int j=1; j<=N; j++) mat[i][j] = F[i-1][j-1];

    for(int i=1; i<=n; i++)
        for(int j=1; j<=n; j++) hor[i][j] = hor[i][j-1] + mat[i][j];
    for(int j=1; j<=n; j++)
        for(int i=1; i<=n; i++) ver[j][i] = ver[j][i-1] + mat[i][j];

    vector<pair<int, int> > v;
    for(int i=1; i<=n; i++)
        for(int j=1; j<=n; j++) if(!mat[i][j]) v.push_back({ i, j });
    sort(v.begin(), v.end());

    auto queryHor = [&](int row, int i, int j) {
        return hor[row][max(i, j)] - hor[row][min(i, j)-1];
    };

    auto queryVer = [&](int col, int i, int j) {
        return ver[col][max(i, j)] - ver[col][min(i, j)-1];
    };

    int m = v.size();

    if(N <= 3) {
        for(int s=0; s<(1<<m); s++) {
            if(__builtin_popcount(s) <= ans) continue;
            bool ok = 1;

            for(int i=0; i<m; i++) {
                if((s & (1 << i)) == 0) continue;
                for(int j=i+1; j<m; j++) {
                    if((s & (1 << j)) == 0) continue;
                    bool ok1=1, ok2=1;

                    if(v[i].first == v[j].first) {
                        int x = max(v[j].second, v[i].second), y = min(v[j].second, v[i].second);
                        int p = hor[v[i].first][x] - hor[v[i].first][y-1];
                        
                        if(p) {
                            ok1 = 0;
                            ok2 = 0;
                            ok = 0;
                            break;
                        }
                    }

                    if(v[i].second == v[j].second) {
                        int x = max(v[j].first, v[i].first), y = min(v[j].first, v[i].first);
                        int p = ver[v[i].second][x] - ver[v[i].second][y-1];

                        if(p) {
                            ok1 = 0;
                            ok2 = 0;
                            ok = 0;
                            break;
                        }
                    }

                    if(v[i].first != v[j].first && v[i].second != v[j].second) {
                        pair<int, int> a = v[i];
                        pair<int, int> b = v[j];
                        if(a.first > b.first) swap(a, b);

                        //right-UD
                        if(queryHor(a.first, a.second, b.second) || queryVer(b.second, a.first, b.first)) ok1 = 0;

                        //UP-right
                        if(queryVer(a.second, a.first, b.first) || queryHor(b.first, a.second, b.second)) ok2 = 0;
                    }

                    if(!ok1 && !ok2) {
                        ok = 0;
                        break;
                    }
                }
            }

            if(ok) ans = max(ans, __builtin_popcount(s));
        }

        return ans;
    }

    //check full
    bool ok = 1;

    for(int i=0; i<m; i++) {
        for(int j=i+1; j<m; j++) {
            if(v[i].first == v[j].first) {
                int x = min(v[i].second, v[j].second), y = max(v[i].second, v[j].second);
                if(hor[v[i].first][y] - hor[v[i].first][x-1]) {
                    ok = 0;
                    break;
                }
            }

            if(v[i].second == v[j].second) {
                int x = min(v[i].first, v[j].first), y = max(v[i].first, v[j].first);
                if(ver[v[i].second][y] - ver[v[i].second][x-1]) {
                    ok = 0;
                    break;
                }
            }

            if(v[i].first != v[j].first && v[i].second != v[j].second) {
                pair<int, int> a = v[i];
                pair<int, int> b = v[j];
                if(a.first > b.first) swap(a, b);

                int ok1 = queryHor(a.first, a.second, b.second) + queryVer(b.second, a.first, b.first);
                int ok2 = queryVer(a.second, a.first, b.first) + queryHor(b.first, a.second, b.second);

                if(ok1 && ok2) {
                    ok = 0;
                    break;
                }
            }
        }
    }

    return (ok ? m : m + 1);
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 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 348 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 16 ms 2908 KB ok
9 Correct 252 ms 36204 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 348 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 0 ms 344 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 500 KB ok
7 Correct 0 ms 500 KB ok
8 Correct 1 ms 440 KB ok
9 Correct 1 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

Subtask #3
5.5 / 22.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 344 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 500 KB ok
8 Correct 0 ms 500 KB ok
9 Correct 1 ms 440 KB ok
10 Correct 1 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 Partially correct 1 ms 348 KB partial
16 Partially correct 0 ms 348 KB partial
17 Partially correct 1 ms 348 KB partial
18 Partially correct 1 ms 436 KB partial
19 Partially correct 1 ms 344 KB partial
20 Correct 1 ms 348 KB ok
21 Correct 1 ms 436 KB ok
22 Partially correct 0 ms 348 KB partial
23 Partially correct 0 ms 348 KB partial
24 Partially correct 0 ms 348 KB partial
25 Partially correct 0 ms 348 KB partial
26 Partially correct 1 ms 348 KB partial

Subtask #4
4.5 / 18.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial
2 Correct 0 ms 348 KB ok
3 Correct 1 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 0 ms 344 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 500 KB ok
10 Correct 0 ms 500 KB ok
11 Correct 1 ms 440 KB ok
12 Correct 1 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 348 KB ok
17 Partially correct 1 ms 348 KB partial
18 Partially correct 0 ms 348 KB partial
19 Partially correct 1 ms 348 KB partial
20 Partially correct 1 ms 436 KB partial
21 Partially correct 1 ms 344 KB partial
22 Correct 1 ms 348 KB ok
23 Correct 1 ms 436 KB ok
24 Partially correct 0 ms 348 KB partial
25 Partially correct 0 ms 348 KB partial
26 Partially correct 0 ms 348 KB partial
27 Partially correct 0 ms 348 KB partial
28 Partially correct 1 ms 348 KB partial
29 Partially correct 1 ms 348 KB partial
30 Partially correct 0 ms 436 KB partial
31 Partially correct 1 ms 856 KB partial
32 Partially correct 0 ms 348 KB partial
33 Partially correct 1 ms 348 KB partial
34 Correct 1 ms 348 KB ok
35 Correct 1 ms 348 KB ok
36 Partially correct 0 ms 348 KB partial
37 Partially correct 0 ms 348 KB partial
38 Partially correct 1 ms 344 KB partial
39 Partially correct 1 ms 348 KB partial
40 Partially correct 1 ms 348 KB partial
41 Partially correct 1 ms 348 KB partial

Subtask #5
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial
2 Correct 0 ms 348 KB ok
3 Correct 1 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 0 ms 344 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 500 KB ok
10 Correct 0 ms 500 KB ok
11 Correct 1 ms 440 KB ok
12 Correct 1 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 348 KB ok
17 Partially correct 1 ms 348 KB partial
18 Partially correct 0 ms 348 KB partial
19 Partially correct 1 ms 348 KB partial
20 Partially correct 1 ms 436 KB partial
21 Partially correct 1 ms 344 KB partial
22 Correct 1 ms 348 KB ok
23 Correct 1 ms 436 KB ok
24 Partially correct 0 ms 348 KB partial
25 Partially correct 0 ms 348 KB partial
26 Partially correct 0 ms 348 KB partial
27 Partially correct 0 ms 348 KB partial
28 Partially correct 1 ms 348 KB partial
29 Partially correct 1 ms 348 KB partial
30 Partially correct 0 ms 436 KB partial
31 Partially correct 1 ms 856 KB partial
32 Partially correct 0 ms 348 KB partial
33 Partially correct 1 ms 348 KB partial
34 Correct 1 ms 348 KB ok
35 Correct 1 ms 348 KB ok
36 Partially correct 0 ms 348 KB partial
37 Partially correct 0 ms 348 KB partial
38 Partially correct 1 ms 344 KB partial
39 Partially correct 1 ms 348 KB partial
40 Partially correct 1 ms 348 KB partial
41 Partially correct 1 ms 348 KB partial
42 Partially correct 30 ms 8140 KB partial
43 Partially correct 28 ms 7884 KB partial
44 Partially correct 59 ms 8240 KB partial
45 Partially correct 192 ms 8908 KB partial
46 Partially correct 34 ms 8052 KB partial
47 Execution timed out 4534 ms 8048 KB Time limit exceeded
48 Halted 0 ms 0 KB -

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial
2 Correct 0 ms 348 KB ok
3 Correct 1 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 0 ms 348 KB ok
8 Correct 1 ms 348 KB ok
9 Correct 16 ms 2908 KB ok
10 Correct 252 ms 36204 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 344 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 500 KB ok
15 Correct 0 ms 500 KB ok
16 Correct 1 ms 440 KB ok
17 Correct 1 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 348 KB ok
22 Partially correct 1 ms 348 KB partial
23 Partially correct 0 ms 348 KB partial
24 Partially correct 1 ms 348 KB partial
25 Partially correct 1 ms 436 KB partial
26 Partially correct 1 ms 344 KB partial
27 Correct 1 ms 348 KB ok
28 Correct 1 ms 436 KB ok
29 Partially correct 0 ms 348 KB partial
30 Partially correct 0 ms 348 KB partial
31 Partially correct 0 ms 348 KB partial
32 Partially correct 0 ms 348 KB partial
33 Partially correct 1 ms 348 KB partial
34 Partially correct 1 ms 348 KB partial
35 Partially correct 0 ms 436 KB partial
36 Partially correct 1 ms 856 KB partial
37 Partially correct 0 ms 348 KB partial
38 Partially correct 1 ms 348 KB partial
39 Correct 1 ms 348 KB ok
40 Correct 1 ms 348 KB ok
41 Partially correct 0 ms 348 KB partial
42 Partially correct 0 ms 348 KB partial
43 Partially correct 1 ms 344 KB partial
44 Partially correct 1 ms 348 KB partial
45 Partially correct 1 ms 348 KB partial
46 Partially correct 1 ms 348 KB partial
47 Partially correct 30 ms 8140 KB partial
48 Partially correct 28 ms 7884 KB partial
49 Partially correct 59 ms 8240 KB partial
50 Partially correct 192 ms 8908 KB partial
51 Partially correct 34 ms 8052 KB partial
52 Execution timed out 4534 ms 8048 KB Time limit exceeded
53 Halted 0 ms 0 KB -