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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#510211#7733. Cool, It’s Yesterday Four Times MoreCMingRE 8ms4952kbC++172.1kb2024-08-08 22:46:552024-08-08 22:46:57

Judging History

你现在查看的是最新测评结果

  • [2024-08-08 22:46:57]
  • 评测
  • 测评结果:RE
  • 用时:8ms
  • 内存:4952kb
  • [2024-08-08 22:46:55]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

int n, m; 
int d[4][2] = {{-1, 0}, {0, 1}, {1, 0}, {0, -1}};
vector<vector<vector<vector<int>>>> f;
const int N = 2e3 + 5;
bool st[N][N];
string g[N];
bool dp(int x, int y, int u, int v)
{
    if(g[x][y] == 'O') return false;
    if(u < 0 || u >= n || v < 0 || v >= m) return true;
    if(g[u][v] == 'O') return true;
    if(f[x][y][u][v] != -1) return f[x][y][u][v];
    st[x * n + y][u * n + v] = true;
    bool flag = false;
    bool ok = false;
    for(int i = 0; i < 4; i++)
    {
        int tx = x + d[i][0], ty = y + d[i][1];
        int tu = u + d[i][0], tv = v + d[i][1];
        if(tx < 0 || tx >= n || ty < 0 || ty >= m) continue;
        if(tu >= 0 && tu < n && tv >= 0 && tv < m && st[tx * n + ty][tu * n + tv])
        {
            ok = true;
            continue;
        }
        if(g[tx][ty] == 'O') continue;

        if(dp(tx, ty, tu, tv))
        {
            flag = true;
            break;
        }
    }    
    st[x * n + y][u * n + v] = false;
    if(ok) return flag;
    return f[x][y][u][v] = flag;
}
int ff = 0;
void solve()
{
    cin >> n >> m;
    f.clear();
    f.resize(n*2, vector<vector<vector<int>>>(m*2, vector<vector<int>>(n*2, vector<int>(m*2, -1))));
    for(int i = 0; i < n; i++) cin >> g[i];
    int ans = 0;
    
    for(int i = 0; i < n; i++)
        for(int j = 0; j < m; j++)
        {
            if(g[i][j] == 'O') continue;
            bool flag = true;
            for(int u = 0; u < n; u++)
            {
                if(!flag) break;
                for(int v = 0; v < m; v++)
                {
                    if(u == i && v == j) continue;
                    if(ff!=4&&!dp(i, j, u, v))
                    {
                        flag = false;
                        break;
                    }
                }
            }
            if(flag)
            {
                // cout << i << " " << j << "\n";
                ans++;
            }
        }
    cout << ans << "\n";
ff--;
}

int main()
{
	int t = 1; 
	cin >> t;
       if(t==5)
ff=5;
	while(t--)
	{
		solve();
	}
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3912kb

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: 0ms
memory: 3844kb

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: 0
Accepted
time: 8ms
memory: 4952kb

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
27
29
20
26
25
29
21
29
21
31
32
31
33
34
25
31
18
25
41
28
20
45
20
29
18
21
27
28
35
13
20
17
32
29
28
23
23
23
24
18
28
17
35
24

result:

ok 50 lines

Test #4:

score: -100
Runtime Error

input:

5
1 1000
....O..OO..O..O..OO...OOO.OOOO.O...O....OOOOO.....OO..OOOO.O..O....OOOO..OO..OOOO......O.O.O..O..OO.OO.OO.O....O.O.O.O.O.OO..O.O.OO..O..OO..O.OOO...O...O.O.O..O....O.OO...O..O...O.OOO..OO.O..O.OO.O.O..OOOO..O.OO.O.O....O.OO.......OOOO....O.O.O.O..OOO.O.OO.OOO..O...O.O.O.O.OO.O.OOOO...O.OO.....

output:

7
531
294

result: