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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#270352#7733. Cool, It’s Yesterday Four Times MoreMarch_April#WA 2ms3884kbC++203.5kb2023-11-30 19:38:232023-11-30 19:38:23

Judging History

你现在查看的是最新测评结果

  • [2023-11-30 19:38:23]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:3884kb
  • [2023-11-30 19:38:23]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

struct Node
{
    int ans[4];
};

void solve()
{
    int n, m;
    cin >> n >> m;
    vector<string> g(n);

    for(int i = 0;i < n; i ++)      cin >> g[i];

    int dx[] = {0, 0, 1, -1}, dy[] = {1, -1, 0, 0};

    vector<vector<int>> block(n, vector<int> (m));//每个格子属于哪个连通块
    int cnt = 0;//连通块的数量
    
    vector<int> idx(1010);
    auto bfs = [&] (int x, int y, int id)
    {
        queue<pair<int, int>> q;
        q.push({x, y});
        block[x][y] = id;

        while(q.size())
        {
            auto [ix, iy] = q.front();
            q.pop();
            idx[id] ++;

            for(int i = 0;i < 4; i ++)
            {
                int a = dx[i] + ix, b = dy[i] + iy;
                if(a < 0 || a >= n || b < 0 || b >= m)        
                    continue;
                
                if(block[a][b] || g[a][b] == 'O')     continue;

                q.push({a, b});
                block[a][b] = id;
            }
        }
    };
    
    for(int i = 0;i < n; i ++)
        for(int j = 0;j < m; j ++)
            if(!block[i][j] && g[i][j] != 'O')
                bfs(i, j, ++ cnt);

    vector<pair<int, int>> p(cnt + 1);

    auto bfs1 = [&] (int x, int y, int d)
    {
        queue<pair<int, int>> q;

        q.push({x, y});

        int val = 0;
        while(q.size())
        {
            auto [ix, iy] = q.front();
            q.pop();

            val ++;

            int a = dx[d] + ix, b = dy[d] + iy;

            // if(ix == 1 && iy == 4 && d == 3)
            //     clog << a << ' ' << b << '\n';

            if(a < 0 || a >= n || b < 0 || b >= m)        
                    continue;
            if(g[a][b] == 'O')     continue;

            // if(ix == 1 && iy == 4 && d == 3)
            //     clog << a << ' ' << b << '\n';

            q.push({a, b});
        }

        return val;
    };

    vector<vector<Node>> f(n, vector<Node> (m));
    for(int i = 0;i < n; i ++)
        for(int j = 0;j < m; j ++)
        {
            if(g[i][j] == 'O')  continue;
            for(int u = 0;u < 4; u ++)
                f[i][j].ans[u] = bfs1(i, j, u);
        }
    
    int ans = 0;
    vector<bool> st(cnt + 1);
    for(int i = 0;i < n; i ++)
    {
        for(int j = 0;j < m; j ++)
        {
            if(g[i][j] == 'O')  continue;
            bool ok = true;
            for(int u = 0;u < n; u ++)
                for(int k = 0;k < m; k ++)
                {
                    if(block[i][j] == block[u][k])
                        continue;
                    int xx = 0;
                    for(int l = 0;l < 4; l ++)
                    {
                        if(f[i][j].ans[l] <= f[u][k].ans[l])
                            xx ++;
                    }
                    if(xx == 4)
                    {
                        ok = false;
                        break;
                    }
                }
            if(ok)  
                st[block[i][j]] = true;
            
            //clog << ok << ' ' << block[i][j] << '\n';
        }
    }

    for(int i = 1;i <= cnt; i ++)
        if(st[i])
            ans += idx[i];

    cout << ans << '\n';

}           

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int tt;
    cin >> tt;
    while(tt --)
    {
        solve();
    }
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3884kb

input:

4
2 5
.OO..
O..O.
1 3
O.O
1 3
.O.
2 3
OOO
OOO

output:

3
1
0
0

result:

ok 4 lines

Test #2:

score: 0
Accepted
time: 1ms
memory: 3652kb

input:

200
2 4
OOO.
OO..
2 3
OOO
.O.
3 3
O.O
OOO
OO.
4 1
.
.
O
O
1 2
.O
1 1
.
2 5
.OO..
.O.O.
2 1
O
O
1 1
O
1 3
.OO
5 1
O
O
.
O
.
5 2
O.
..
O.
.O
..
5 3
...
...
.OO
..O
OOO
3 5
..O.O
.O.O.
.OO.O
5 2
.O
OO
O.
O.
..
2 1
O
O
3 5
.O.OO
O...O
..OO.
1 5
.....
5 1
O
.
O
.
.
5 3
OOO
OO.
.OO
OO.
O.O
2 1
O
.
5 2
O.
...

output:

3
0
0
2
1
1
3
0
0
1
0
7
9
4
4
0
6
5
2
0
1
6
4
5
2
0
0
5
3
3
1
4
1
0
7
5
2
3
7
3
0
6
2
2
2
0
4
6
6
3
3
2
3
5
2
1
0
3
3
4
4
2
2
0
7
6
4
8
5
3
2
5
2
1
2
1
4
0
0
2
5
1
4
6
6
1
6
2
2
3
4
5
2
1
0
1
9
3
4
11
0
3
2
1
0
0
4
3
1
4
3
8
3
0
3
6
2
5
1
3
3
4
0
2
11
2
2
4
0
4
4
6
2
1
2
3
0
5
0
16
4
3
2
6
0
8
3
3
1...

result:

ok 200 lines

Test #3:

score: -100
Wrong Answer
time: 2ms
memory: 3608kb

input:

50
10 9
OOOO.O...
O...O.OOO
.....O...
..OO..O.O
...O..O.O
..OOO..O.
..OOO...O
.OO.O..OO
.O.O.OO..
.O..O.O.O
10 10
.O.OOO.OO.
...OOOOOOO
...O.O..O.
.O.O..O...
.O.O.OO..O
..OO.O..OO
O....O..OO
OO...OOOOO
OO.OO.O..O
.O.O.OOOOO
10 8
O..OOO.O
O.OOOO..
O..OO.OO
OO..OO..
.OOO..O.
.OO.OO.O
OOO..OO.
..O..OO....

output:

31
40
13
25
40
37
20
24
20
26
25
29
21
29
21
23
32
31
25
34
25
31
18
19
41
28
20
45
20
29
18
21
19
28
35
13
20
10
32
29
28
23
16
23
19
18
28
17
35
19

result:

wrong answer 7th lines differ - expected: '27', found: '20'