oj.uz

Submission #963751

# Submission time Handle Problem Language Result Execution time Memory
963751 2024-04-15T15:31:19 Z tutis Soccer Stadium (IOI23_soccer) C++17
70 / 100
 4500 ms 119416 KB 
//#include "soccer.h"

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int biggest_stadium(int N, std::vector<std::vector<int>> C) {
    vector<vector<int>> S(N);
    auto fS = [&](int x, int y) {
        if (x < 0 || y < 0) {
            return 0;
        }
        if (x >= N) {
            x = N - 1;
        }
        if (y >= N) {
            y = N - 1;
        }
        return S[x][y];
    };
    auto sm = [&](int x1, int x2, int y1, int y2) -> int {
        return fS(x2, y2) - fS(x1 - 1, y2) - fS(x2, y1 - 1) + fS(x1 - 1, y1 - 1);
    };
    for (int i = 0; i < N; i++) {
        S[i] = vector<int>(N);
        for (int j = 0; j < N; j++) {
            S[i][j] = C[i][j];
            S[i][j] += fS(i - 1, j) + fS(i, j - 1) - fS(i - 1, j - 1);
        }
    }
    int best = 0;
    vector<pair<pair<int, int>, pair<int, int>>> V;
    function<void(int, int, int, int)> dfs = [&](int x1, int x2, int y1, int y2) -> void {
        if (y1 > y2) {
            return;
        }
        if (x2 != N - 1 && sm(x2 + 1, x2 + 1, y1, y2) == 0) {
            return;
        }
        if (x1 == 0) {
            V.push_back({{x1, x2},
                         {y1, y2}});
            return;
        }
        if (sm(x1 - 1, x1 - 1, y1, y2) != 0) {
            V.push_back({{x1, x2},
                         {y1, y2}});
        }
        int lst = y1 - 1;
        for (int y = y1; y <= y2 + 1; y++) {
            if (y == y2 + 1 || C[x1 - 1][y] == 1) {
                dfs(x1 - 1, x2, lst + 1, y - 1);
                lst = y;
            }
        }
    };
    for (int x = 0; x < N; x++) {
        int lst = -1;
        for (int y = 0; y <= N; y++) {
            if (y == N || C[x][y] == 1) {
                if (lst + 1 > y - 1) {
                    lst = y;
                    continue;
                }
                if (x != N - 1 && sm(x + 1, x + 1, lst + 1, y - 1) == 0) {
                    lst = y;
                    continue;
                }
                dfs(x, x, lst + 1, y - 1);
                lst = y;
            }
        }
    }
    sort(V.begin(), V.end(),
         [&](pair<pair<int, int>, pair<int, int>> a, pair<pair<int, int>, pair<int, int>> b) {
             return a.second.second - a.second.first > b.second.second - b.second.first;
         });
    map<pair<pair<int, int>, pair<int, int>>, int> M;
    auto check = [&](pair<pair<int, int>, pair<int, int>> i, int area) {
        auto [xp, yp] = i;
        auto [x0, x1] = xp;
        auto [y0, y1] = yp;
        if (y0 > y1) {
            return;
        }
        while (x0 != 0 && sm(x0 - 1, x0 - 1, y0, y1) == 0) {
            x0--;
            area += (y1 - y0 + 1);
        }
        while (x1 != N - 1 && sm(x1 + 1, x1 + 1, y0, y1) == 0) {
            x1++;
            area += (y1 - y0 + 1);
        }
        M[{{x0, x1},
           {y0, y1}}] = max(M[{{x0, x1},
                               {y0, y1}}],
                            area);
    };
    auto expL = [&](pair<pair<int, int>, pair<int, int>> i, int area) {
        auto [xp, yp] = i;
        auto [x0, x1] = xp;
        auto [y0, y1] = yp;
        if (y0 > y1) {
            return;
        }
        int lst = y0 - 1;
        for (int y = y0; y <= y1 + 1; y++) {
            if (y == y1 + 1 || C[x0 - 1][y] == 1) {
                check({{x0 - 1,  x1},
                       {lst + 1, y - 1}}, area + (y - 1) - (lst + 1) + 1);
                lst = y;
            }
        }
    };
    auto expR = [&](pair<pair<int, int>, pair<int, int>> i, int area) {
        auto [xp, yp] = i;
        auto [x0, x1] = xp;
        auto [y0, y1] = yp;
        if (y0 > y1) {
            return;
        }
        int lst = y0 - 1;
        for (int y = y0; y <= y1 + 1; y++) {
            if (y == y1 + 1 || C[x1 + 1][y] == 1) {
                check({{x0,      x1 + 1},
                       {lst + 1, y - 1}}, area + (y - 1) - (lst + 1) + 1);
                lst = y;
            }
        }
    };
    for (auto i: V) {
        auto [xp, yp] = i;
        auto [x0, x1] = xp;
        auto [y0, y1] = yp;
        int dp = (x1 - x0 + 1) * (y1 - y0 + 1);
        if (M.count(i)) {
            dp = M[i];
        } else {
            M[i] = dp;
        }
        int ans = dp;
        best = max(best, ans);
        if (x0 != 0) {
            expL(i, ans);
        }
        if (x1 != N - 1) {
            expR(i, ans);
        }
    }

    return best;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 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 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 1 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 1 ms 348 KB ok
8 Correct 18 ms 3976 KB ok
9 Correct 288 ms 55680 KB ok

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 1 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 1 ms 344 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 1 ms 604 KB ok

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 1 ms 348 KB ok
6 Correct 1 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 1 ms 344 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 1 ms 604 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 428 KB ok
17 Correct 1 ms 344 KB ok
18 Correct 1 ms 348 KB ok
19 Correct 1 ms 344 KB ok
20 Correct 0 ms 432 KB ok
21 Correct 1 ms 344 KB ok
22 Correct 1 ms 344 KB ok
23 Correct 0 ms 344 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 0 ms 348 KB ok
26 Correct 0 ms 348 KB ok

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 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 1 ms 348 KB ok
7 Correct 1 ms 348 KB ok
8 Correct 1 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 1 ms 344 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 1 ms 604 KB ok
17 Correct 0 ms 348 KB ok
18 Correct 0 ms 428 KB ok
19 Correct 1 ms 344 KB ok
20 Correct 1 ms 348 KB ok
21 Correct 1 ms 344 KB ok
22 Correct 0 ms 432 KB ok
23 Correct 1 ms 344 KB ok
24 Correct 1 ms 344 KB ok
25 Correct 0 ms 344 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 1 ms 500 KB ok
31 Correct 1 ms 348 KB ok
32 Correct 1 ms 348 KB ok
33 Correct 1 ms 344 KB ok
34 Correct 1 ms 348 KB ok
35 Correct 0 ms 344 KB ok
36 Correct 1 ms 348 KB ok
37 Correct 1 ms 348 KB ok
38 Correct 0 ms 344 KB ok
39 Correct 0 ms 348 KB ok
40 Correct 0 ms 348 KB ok
41 Correct 1 ms 348 KB ok

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 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 1 ms 348 KB ok
7 Correct 1 ms 348 KB ok
8 Correct 1 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 1 ms 344 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 1 ms 604 KB ok
17 Correct 0 ms 348 KB ok
18 Correct 0 ms 428 KB ok
19 Correct 1 ms 344 KB ok
20 Correct 1 ms 348 KB ok
21 Correct 1 ms 344 KB ok
22 Correct 0 ms 432 KB ok
23 Correct 1 ms 344 KB ok
24 Correct 1 ms 344 KB ok
25 Correct 0 ms 344 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 1 ms 500 KB ok
31 Correct 1 ms 348 KB ok
32 Correct 1 ms 348 KB ok
33 Correct 1 ms 344 KB ok
34 Correct 1 ms 348 KB ok
35 Correct 0 ms 344 KB ok
36 Correct 1 ms 348 KB ok
37 Correct 1 ms 348 KB ok
38 Correct 0 ms 344 KB ok
39 Correct 0 ms 348 KB ok
40 Correct 0 ms 348 KB ok
41 Correct 1 ms 348 KB ok
42 Correct 112 ms 7808 KB ok
43 Correct 116 ms 8688 KB ok
44 Correct 65 ms 4832 KB ok
45 Correct 57 ms 4400 KB ok
46 Correct 104 ms 6608 KB ok
47 Correct 21 ms 3968 KB ok
48 Correct 34 ms 3960 KB ok
49 Correct 25 ms 3920 KB ok
50 Correct 547 ms 3992 KB ok
51 Correct 35 ms 5112 KB ok
52 Correct 19 ms 3908 KB ok
53 Correct 18 ms 3932 KB ok
54 Correct 22 ms 3924 KB ok
55 Correct 21 ms 3932 KB ok
56 Correct 21 ms 3928 KB ok
57 Correct 128 ms 8716 KB ok
58 Correct 157 ms 9412 KB ok
59 Correct 158 ms 10260 KB ok

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 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 1 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 1 ms 348 KB ok
9 Correct 18 ms 3976 KB ok
10 Correct 288 ms 55680 KB ok
11 Correct 1 ms 348 KB ok
12 Correct 1 ms 348 KB ok
13 Correct 1 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 1 ms 344 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 1 ms 604 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 428 KB ok
24 Correct 1 ms 344 KB ok
25 Correct 1 ms 348 KB ok
26 Correct 1 ms 344 KB ok
27 Correct 0 ms 432 KB ok
28 Correct 1 ms 344 KB ok
29 Correct 1 ms 344 KB ok
30 Correct 0 ms 344 KB ok
31 Correct 0 ms 348 KB ok
32 Correct 0 ms 348 KB ok
33 Correct 0 ms 348 KB ok
34 Correct 0 ms 348 KB ok
35 Correct 1 ms 500 KB ok
36 Correct 1 ms 348 KB ok
37 Correct 1 ms 348 KB ok
38 Correct 1 ms 344 KB ok
39 Correct 1 ms 348 KB ok
40 Correct 0 ms 344 KB ok
41 Correct 1 ms 348 KB ok
42 Correct 1 ms 348 KB ok
43 Correct 0 ms 344 KB ok
44 Correct 0 ms 348 KB ok
45 Correct 0 ms 348 KB ok
46 Correct 1 ms 348 KB ok
47 Correct 112 ms 7808 KB ok
48 Correct 116 ms 8688 KB ok
49 Correct 65 ms 4832 KB ok
50 Correct 57 ms 4400 KB ok
51 Correct 104 ms 6608 KB ok
52 Correct 21 ms 3968 KB ok
53 Correct 34 ms 3960 KB ok
54 Correct 25 ms 3920 KB ok
55 Correct 547 ms 3992 KB ok
56 Correct 35 ms 5112 KB ok
57 Correct 19 ms 3908 KB ok
58 Correct 18 ms 3932 KB ok
59 Correct 22 ms 3924 KB ok
60 Correct 21 ms 3932 KB ok
61 Correct 21 ms 3928 KB ok
62 Correct 128 ms 8716 KB ok
63 Correct 157 ms 9412 KB ok
64 Correct 158 ms 10260 KB ok
65 Correct 3433 ms 119416 KB ok
66 Correct 843 ms 115260 KB ok
67 Correct 427 ms 81972 KB ok
68 Correct 1132 ms 58840 KB ok
69 Correct 2070 ms 74040 KB ok
70 Correct 2680 ms 86504 KB ok
71 Correct 828 ms 57656 KB ok
72 Correct 326 ms 55564 KB ok
73 Correct 745 ms 55564 KB ok
74 Correct 804 ms 55692 KB ok
75 Correct 757 ms 55716 KB ok
76 Execution timed out 4553 ms 55816 KB Time limit exceeded
77 Halted 0 ms 0 KB -