oj.uz

Submission #1011974

# Submission time Handle Problem Language Result Execution time Memory
1011974 2024-07-01T13:02:23 Z mdn2002 Soccer Stadium (IOI23_soccer) C++17
18 / 100
 1709 ms 95056 KB 
#include "soccer.h"
#include<bits/stdc++.h>
using namespace std;
int dp[8000006];
int biggest_stadium(int N, vector<vector<int>> F) {
    int n = N;
    vector<vector<int>> a = F, next(n, vector<int>(n)), sum(n, vector<int>(n));
    map<vector<int>, int> mp;
    vector<vector<int>> v(n), vv;

    function<int(int, int, int, int)> summ = [&] (int l, int r, int x, int y) {
        long long ans = sum[y][r];
        if (x - 1 >= 0) ans -= sum[x - 1][r];
        if (l - 1 >= 0) ans -= sum[y][l - 1];
        if (x - 1 >= 0 && l - 1 >= 0) ans += sum[x - 1][l - 1];
        return ans;
    };

    int cnt = 0;

    for (int i = 0; i < n; i ++) {
        for (int j = 0; j < n; j ++) {
            sum[i][j] += a[i][j];
            if (j) sum[i][j] += sum[i][j - 1];
            if (a[i][j] == 0) v[i].push_back(j);
        }
        v[i].push_back(n + 1);
    }
    for (int i = 1; i < n; i ++) {
        for (int j = 0; j < n; j ++) sum[i][j] += sum[i - 1][j];
    }
    for (int i = 0; i < n; i ++) {
        if (a[i][n - 1] == 0) next[i][n - 1] = n - 1;
        else next[i][n - 1] = n - 2;
        for (int j = n - 2; j >= 0; j --) {
            if (a[i][j]) next[i][j] = j - 1;
            else next[i][j] = next[i][j + 1];
        }
    }
    int ans = 0;
    for (int i = 0; i < n; i ++) {
        for (int j = 0; j < n; j ++) {
            if (a[i][j]) continue;
            int ll = i, rr = n, mid, x, y;
            while (ll < rr) {
                mid = (ll + rr) / 2;
                if (summ(j, next[i][j], i, mid) == 0) ll = mid + 1;
                else rr = mid;
            }
            ll --;
            y = ll;

            ll = 0, rr = i;
            while (ll < rr) {
                mid = (ll + rr) / 2;
                if (summ(j, next[i][j], mid, i) == 0) rr = mid;
                else ll = mid + 1;
            }
            x = ll;
            vector<int> vvv = {j, next[i][j], x, y};
            if (mp[vvv] == 0) {
                vv.push_back(vvv);
                mp[vvv] = ++ cnt;
            }
            j = next[i][j];
        }
    }

    function<bool(vector<int>, vector<int>)> cmp = [&](vector<int> a, vector<int> b) {
        int siz1 = (a[1] - a[0] + 1), siz2 = (b[1] - b[0] + 1);
        int siz3 = (a[3] - a[2] + 1), siz4 = (b[3] - b[2] + 1);
        if (siz1 > siz2) return 1;
        if (siz4 > siz3) return 1;
        return 0;
    };
    sort(vv.begin(), vv.end(), cmp);

    for (auto xx : vv) {
        if (mp.count(xx) == 0) mp[xx] = ++ cnt;
        int id = mp[xx];
        dp[id] = max(dp[id], (xx[1] - xx[0] + 1) * (xx[3] - xx[2] + 1));
        ans = max(ans, dp[id]);

        int l = xx[0], r = xx[1], x = xx[2], y = xx[3];

        if (x - 1 >= 0) {
            for (int j = l; j <= r; j ++) {
                int z = min(r, next[x - 1][j]);
                if (a[x - 1][j] == 0) {

                    int ll = y, rr = n, mid, nx, ny;
                    while (ll < rr) {
                        mid = (ll + rr) / 2;
                        if (summ(j, z, x, mid) == 0) ll = mid + 1;
                        else rr = mid;
                    }
                    ll --;
                    ny = ll;

                    ll = 0, rr = x;
                    while (ll < rr) {
                        mid = (ll + rr) / 2;
                        if (summ(j, z, mid, y) == 0) rr = mid;
                        else ll = mid + 1;
                    }
                    nx = ll;

                    vector<int> xxx = {j, z, nx, ny};
                    if (mp.count(xxx) == 0) mp[xxx] = ++ cnt;
                    int idd = mp[xxx];
                    dp[idd] = max(dp[idd], dp[id] + (z - j + 1) * (x - nx + ny - y));
                }
                j = *upper_bound(v[x - 1].begin(), v[x - 1].end(), z) - 1;
            }
        }
        if (y + 1 < n) {
            for (int j = l; j <= r; j ++) {
                int z = min(r, next[y + 1][j]);
                if (a[y + 1][j] == 0) {
                    int ll = y, rr = n, mid, nx, ny;
                    while (ll < rr) {
                        mid = (ll + rr) / 2;
                        if (summ(j, z, x, mid) == 0) ll = mid + 1;
                        else rr = mid;
                    }
                    ll --;
                    ny = ll;

                    ll = 0, rr = x;
                    while (ll < rr) {
                        mid = (ll + rr) / 2;
                        if (summ(j, z, mid, y) == 0) rr = mid;
                        else ll = mid + 1;
                    }
                    nx = ll;

                    vector<int> xxx = {j, z, nx, ny};
                    if (mp.count(xxx) == 0) mp[xxx] = ++ cnt;
                    int idd = mp[xxx];
                    dp[idd] = max(dp[idd], dp[id] + (z - j + 1) * (x - nx + ny - y));
                }
                j = *upper_bound(v[y + 1].begin(), v[y + 1].end(), z) - 1;
            }
        }
    }
    return ans;
}
/*
3
0 0 0
0 1 0
0 0 0
*/

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB ok

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 344 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 600 KB ok
8 Correct 14 ms 6236 KB ok
9 Correct 243 ms 95056 KB ok

Subtask #2
2.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 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 Partially correct 0 ms 348 KB partial
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

Subtask #3
5.5 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB ok
2 Correct 0 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 0 ms 348 KB ok
8 Partially correct 0 ms 348 KB partial
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 1 ms 348 KB ok
16 Partially correct 0 ms 348 KB partial
17 Partially correct 0 ms 344 KB partial
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 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 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

Subtask #4
4.5 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB ok
2 Correct 0 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 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 Partially correct 0 ms 348 KB partial
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 348 KB ok
17 Correct 1 ms 348 KB ok
18 Partially correct 0 ms 348 KB partial
19 Partially correct 0 ms 344 KB partial
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 0 ms 348 KB ok
26 Partially correct 0 ms 348 KB partial
27 Partially correct 0 ms 348 KB partial
28 Partially correct 0 ms 348 KB partial
29 Partially correct 0 ms 348 KB partial
30 Correct 1 ms 348 KB ok
31 Correct 1 ms 596 KB ok
32 Correct 1 ms 348 KB ok
33 Correct 0 ms 348 KB ok
34 Correct 0 ms 344 KB ok
35 Correct 0 ms 348 KB ok
36 Correct 0 ms 348 KB ok
37 Partially correct 0 ms 348 KB partial
38 Partially correct 0 ms 348 KB partial
39 Partially correct 0 ms 348 KB partial
40 Correct 0 ms 348 KB ok
41 Partially correct 0 ms 348 KB partial

Subtask #5
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB ok
2 Correct 0 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 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 Partially correct 0 ms 348 KB partial
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 348 KB ok
17 Correct 1 ms 348 KB ok
18 Partially correct 0 ms 348 KB partial
19 Partially correct 0 ms 344 KB partial
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 0 ms 348 KB ok
26 Partially correct 0 ms 348 KB partial
27 Partially correct 0 ms 348 KB partial
28 Partially correct 0 ms 348 KB partial
29 Partially correct 0 ms 348 KB partial
30 Correct 1 ms 348 KB ok
31 Correct 1 ms 596 KB ok
32 Correct 1 ms 348 KB ok
33 Correct 0 ms 348 KB ok
34 Correct 0 ms 344 KB ok
35 Correct 0 ms 348 KB ok
36 Correct 0 ms 348 KB ok
37 Partially correct 0 ms 348 KB partial
38 Partially correct 0 ms 348 KB partial
39 Partially correct 0 ms 348 KB partial
40 Correct 0 ms 348 KB ok
41 Partially correct 0 ms 348 KB partial
42 Partially correct 695 ms 12812 KB partial
43 Partially correct 1709 ms 15280 KB partial
44 Partially correct 39 ms 7508 KB partial
45 Partially correct 25 ms 6996 KB partial
46 Partially correct 183 ms 10124 KB partial
47 Partially correct 14 ms 6236 KB partial
48 Correct 14 ms 5980 KB ok
49 Partially correct 15 ms 5980 KB partial
50 Correct 44 ms 6236 KB ok
51 Correct 1435 ms 9360 KB ok
52 Partially correct 14 ms 5464 KB partial
53 Partially correct 14 ms 5544 KB partial
54 Partially correct 14 ms 5464 KB partial
55 Partially correct 15 ms 5760 KB partial
56 Runtime error 20 ms 11608 KB Execution killed with signal 6
57 Halted 0 ms 0 KB -

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB ok
2 Correct 0 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 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 1 ms 600 KB ok
9 Correct 14 ms 6236 KB ok
10 Correct 243 ms 95056 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 0 ms 348 KB partial
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 348 KB ok
22 Correct 1 ms 348 KB ok
23 Partially correct 0 ms 348 KB partial
24 Partially correct 0 ms 344 KB partial
25 Correct 0 ms 348 KB ok
26 Correct 0 ms 348 KB ok
27 Correct 0 ms 348 KB ok
28 Correct 0 ms 348 KB ok
29 Correct 0 ms 348 KB ok
30 Correct 0 ms 348 KB ok
31 Partially correct 0 ms 348 KB partial
32 Partially correct 0 ms 348 KB partial
33 Partially correct 0 ms 348 KB partial
34 Partially correct 0 ms 348 KB partial
35 Correct 1 ms 348 KB ok
36 Correct 1 ms 596 KB ok
37 Correct 1 ms 348 KB ok
38 Correct 0 ms 348 KB ok
39 Correct 0 ms 344 KB ok
40 Correct 0 ms 348 KB ok
41 Correct 0 ms 348 KB ok
42 Partially correct 0 ms 348 KB partial
43 Partially correct 0 ms 348 KB partial
44 Partially correct 0 ms 348 KB partial
45 Correct 0 ms 348 KB ok
46 Partially correct 0 ms 348 KB partial
47 Partially correct 695 ms 12812 KB partial
48 Partially correct 1709 ms 15280 KB partial
49 Partially correct 39 ms 7508 KB partial
50 Partially correct 25 ms 6996 KB partial
51 Partially correct 183 ms 10124 KB partial
52 Partially correct 14 ms 6236 KB partial
53 Correct 14 ms 5980 KB ok
54 Partially correct 15 ms 5980 KB partial
55 Correct 44 ms 6236 KB ok
56 Correct 1435 ms 9360 KB ok
57 Partially correct 14 ms 5464 KB partial
58 Partially correct 14 ms 5544 KB partial
59 Partially correct 14 ms 5464 KB partial
60 Partially correct 15 ms 5760 KB partial
61 Runtime error 20 ms 11608 KB Execution killed with signal 6
62 Halted 0 ms 0 KB -