oj.uz

Submission #1011979

# Submission time Handle Problem Language Result Execution time Memory
1011979 2024-07-01T13:06:29 Z mdn2002 Soccer Stadium (IOI23_soccer) C++17
29.5 / 100
 3371 ms 212428 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 && siz3 < siz4) 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 0 ms 344 KB ok

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 1 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 1 ms 604 KB ok
8 Correct 13 ms 6236 KB ok
9 Correct 230 ms 95008 KB ok

Subtask #2
2.0 / 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 344 KB ok
4 Correct 0 ms 344 KB ok
5 Correct 0 ms 364 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 1 ms 344 KB ok
13 Correct 1 ms 344 KB ok

Subtask #3
5.5 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 0 ms 344 KB ok
5 Correct 0 ms 344 KB ok
6 Correct 0 ms 364 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 1 ms 344 KB ok
14 Correct 1 ms 344 KB ok
15 Correct 0 ms 344 KB ok
16 Partially correct 0 ms 348 KB partial
17 Partially correct 0 ms 348 KB partial
18 Partially correct 1 ms 344 KB partial
19 Correct 0 ms 348 KB ok
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 344 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 0 ms 344 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 1 ms 344 KB ok
6 Correct 0 ms 344 KB ok
7 Correct 0 ms 344 KB ok
8 Correct 0 ms 364 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 1 ms 344 KB ok
16 Correct 1 ms 344 KB ok
17 Correct 0 ms 344 KB ok
18 Partially correct 0 ms 348 KB partial
19 Partially correct 0 ms 348 KB partial
20 Partially correct 1 ms 344 KB partial
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 344 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 0 ms 348 KB ok
31 Partially correct 1 ms 348 KB partial
32 Correct 1 ms 344 KB ok
33 Correct 0 ms 348 KB ok
34 Correct 0 ms 348 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 1 ms 348 KB partial
40 Correct 1 ms 348 KB ok
41 Partially correct 0 ms 348 KB partial

Subtask #5
4.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 1 ms 344 KB ok
6 Correct 0 ms 344 KB ok
7 Correct 0 ms 344 KB ok
8 Correct 0 ms 364 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 1 ms 344 KB ok
16 Correct 1 ms 344 KB ok
17 Correct 0 ms 344 KB ok
18 Partially correct 0 ms 348 KB partial
19 Partially correct 0 ms 348 KB partial
20 Partially correct 1 ms 344 KB partial
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 344 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 0 ms 348 KB ok
31 Partially correct 1 ms 348 KB partial
32 Correct 1 ms 344 KB ok
33 Correct 0 ms 348 KB ok
34 Correct 0 ms 348 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 1 ms 348 KB partial
40 Correct 1 ms 348 KB ok
41 Partially correct 0 ms 348 KB partial
42 Partially correct 107 ms 12804 KB partial
43 Partially correct 130 ms 15316 KB partial
44 Partially correct 28 ms 7508 KB partial
45 Partially correct 31 ms 6812 KB partial
46 Partially correct 60 ms 10172 KB partial
47 Partially correct 15 ms 6236 KB partial
48 Correct 15 ms 6052 KB ok
49 Partially correct 15 ms 5976 KB partial
50 Correct 49 ms 6048 KB ok
51 Partially correct 41 ms 9368 KB partial
52 Partially correct 18 ms 5468 KB partial
53 Partially correct 15 ms 5448 KB partial
54 Partially correct 14 ms 5468 KB partial
55 Partially correct 15 ms 5724 KB partial
56 Correct 17 ms 5796 KB ok
57 Partially correct 16 ms 6572 KB partial
58 Partially correct 22 ms 6568 KB partial
59 Partially correct 15 ms 6488 KB partial

Subtask #6
7.5 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 1 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 1 ms 604 KB ok
9 Correct 13 ms 6236 KB ok
10 Correct 230 ms 95008 KB ok
11 Correct 0 ms 344 KB ok
12 Correct 0 ms 344 KB ok
13 Correct 0 ms 364 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 1 ms 344 KB ok
21 Correct 1 ms 344 KB ok
22 Correct 0 ms 344 KB ok
23 Partially correct 0 ms 348 KB partial
24 Partially correct 0 ms 348 KB partial
25 Partially correct 1 ms 344 KB partial
26 Correct 0 ms 348 KB ok
27 Correct 0 ms 348 KB ok
28 Correct 0 ms 344 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 0 ms 348 KB ok
36 Partially correct 1 ms 348 KB partial
37 Correct 1 ms 344 KB ok
38 Correct 0 ms 348 KB ok
39 Correct 0 ms 348 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 1 ms 348 KB partial
45 Correct 1 ms 348 KB ok
46 Partially correct 0 ms 348 KB partial
47 Partially correct 107 ms 12804 KB partial
48 Partially correct 130 ms 15316 KB partial
49 Partially correct 28 ms 7508 KB partial
50 Partially correct 31 ms 6812 KB partial
51 Partially correct 60 ms 10172 KB partial
52 Partially correct 15 ms 6236 KB partial
53 Correct 15 ms 6052 KB ok
54 Partially correct 15 ms 5976 KB partial
55 Correct 49 ms 6048 KB ok
56 Partially correct 41 ms 9368 KB partial
57 Partially correct 18 ms 5468 KB partial
58 Partially correct 15 ms 5448 KB partial
59 Partially correct 14 ms 5468 KB partial
60 Partially correct 15 ms 5724 KB partial
61 Correct 17 ms 5796 KB ok
62 Partially correct 16 ms 6572 KB partial
63 Partially correct 22 ms 6568 KB partial
64 Partially correct 15 ms 6488 KB partial
65 Partially correct 3371 ms 199604 KB partial
66 Partially correct 2997 ms 212428 KB partial
67 Partially correct 1141 ms 137336 KB partial
68 Partially correct 249 ms 97364 KB partial
69 Partially correct 603 ms 112596 KB partial
70 Partially correct 1069 ms 130264 KB partial
71 Partially correct 238 ms 96288 KB partial
72 Partially correct 221 ms 95060 KB partial
73 Correct 258 ms 89936 KB ok
74 Correct 219 ms 89940 KB ok
75 Partially correct 218 ms 89940 KB partial
76 Correct 845 ms 91288 KB ok
77 Correct 825 ms 91520 KB ok
78 Partially correct 578 ms 121332 KB partial
79 Partially correct 400 ms 91352 KB partial
80 Partially correct 364 ms 87764 KB partial
81 Partially correct 342 ms 88040 KB partial
82 Partially correct 459 ms 95488 KB partial
83 Partially correct 1344 ms 130088 KB partial
84 Partially correct 249 ms 81232 KB partial
85 Partially correct 257 ms 80420 KB partial
86 Partially correct 241 ms 82260 KB partial
87 Partially correct 257 ms 82740 KB partial
88 Correct 239 ms 86104 KB ok
89 Partially correct 232 ms 95204 KB partial
90 Partially correct 256 ms 95056 KB partial
91 Partially correct 227 ms 93780 KB partial
92 Partially correct 865 ms 112628 KB partial
93 Correct 850 ms 118148 KB ok
94 Partially correct 403 ms 93184 KB partial
95 Correct 323 ms 87296 KB ok
96 Partially correct 286 ms 85220 KB partial
97 Partially correct 271 ms 84108 KB partial
98 Partially correct 262 ms 81552 KB partial
99 Correct 946 ms 134264 KB ok
100 Partially correct 283 ms 96036 KB partial
101 Partially correct 233 ms 96036 KB partial
102 Partially correct 250 ms 96084 KB partial
103 Partially correct 234 ms 96084 KB partial
104 Partially correct 227 ms 96080 KB partial
105 Partially correct 244 ms 96080 KB partial
106 Partially correct 251 ms 96080 KB partial
107 Partially correct 260 ms 96084 KB partial
108 Partially correct 480 ms 102668 KB partial
109 Partially correct 429 ms 102112 KB partial