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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#527649#7733. Cool, It’s Yesterday Four Times MoreStelorTL 860ms22544kbC++202.0kb2024-08-22 18:01:232024-08-22 18:01:24

Judging History

你现在查看的是最新测评结果

  • [2024-08-22 18:01:24]
  • 评测
  • 测评结果:TL
  • 用时:860ms
  • 内存:22544kb
  • [2024-08-22 18:01:23]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
#define PII pair<int,int>
#define PIIII pair<PII,PII>
const int N=1e3+100;
int n,m,ans,tmp,dx[]={0,0,1,-1},dy[]={1,-1,0,0};
char s[N][N];
map<PIIII,int> mp;
bool fail(int x,int y)
{
	if(x>n||x<1||y>m||y<1||s[x][y]!='.') return true;
	return false;
}
void dfs(int x,int y,int i,int j)
{
	mp[{{x,y},{i,j}}]=tmp;
	for(int t=0;t<4;++t)
	{
		int nx=x+dx[t],ny=y+dy[t];
		int ni=i+dx[t],nj=j+dy[t];
		if(fail(nx,ny)) continue;
		if(fail(ni,nj)) 
		{
			mp[{{x,y},{i,j}}]=2;
			return;
		} 
		if(!mp.count({{nx,ny},{ni,nj}}))
		{
		    dfs(nx,ny,ni,nj);
		    if(mp[{{nx,ny},{ni,nj}}]==2)
		    {
		        mp[{{x,y},{i,j}}]=2;
		        return;
		    }
		}
		else
		{
		    if(mp[{{nx,ny},{ni,nj}}]==2)
		    {
		        mp[{{x,y},{i,j}}]=2;
		        return;
		    }
		    else if(mp[{{nx,ny},{ni,nj}}]!=tmp)
		    {
		        dfs(nx,ny,ni,nj);
		        if(mp[{{nx,ny},{ni,nj}}]==2)
		        {
		           mp[{{x,y},{i,j}}]=2;
		           return;
		        }
		    }
		}
	}
}
void work(int x,int y)
{
	int now=0;
	tmp++;
	for(int i=1;i<=n;++i)
	{
		for(int j=1;j<=m;++j)
		{
		    if(i==x&&y==j) continue;
			if(s[i][j]=='.')
			{
				if(mp.count({{x,y},{i,j}}))
				{
					if(mp[{{x,y},{i,j}}]==2)
					now++;
					else if(mp[{{x,y},{i,j}}]==tmp) 
					{
					    return;
					}
					else
					{
					    dfs(x,y,i,j);
					    if(mp[{{x,y},{i,j}}]==2) now++;
					    else return;
					}
				}
				else
				{
					dfs(x,y,i,j);
					if(mp[{{x,y},{i,j}}]==2) now++;
					else 
					{
					    return;
					}
				}
				
			}
		}
	}
	++ans; 
}
void solve()
{
    tmp=3;
    ans=0;
	mp.clear();
	cin>>n>>m;
	for(int i=1;i<=n;++i)
	{
		for(int j=1;j<=m;++j)
		{
			cin>>s[i][j];
		}
	}
	for(int i=1;i<=n;++i)
	{
		for(int j=1;j<=m;++j)
		{
			if(s[i][j]=='.') work(i,j);
		}
	}
	cout<<ans<<endl;

}
int main()
{
	ios::sync_with_stdio(0),cin.tie(0);
	int _;cin>>_;
	while(_--) solve();
	return 0;	
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3680kb

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: 2ms
memory: 3636kb

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: 26ms
memory: 3836kb

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: 0
Accepted
time: 391ms
memory: 17460kb

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
380
294
373
291

result:

ok 5 lines

Test #5:

score: 0
Accepted
time: 3ms
memory: 3720kb

input:

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

output:

1
1
2
1
2
3
1
2
1
2
1
5
4
1
1
7
1
2
2
1
1
6
0
1
1
5
1
1
2
1
3
8
1
2
1
3
2
10
4
1
3
1
2
1
1
1
1
1
2
1
1
2
2
4
3
1
2
7
4
1
4
1
1
1
2
1
2
1
7
1
1
1
1
1
3
1
1
2
4
1
4
1
1
1
1
1
1
1
1
1
3
7
1
1
2
5
1
3
7
1
9
2
9
4
4
0
12
6
4
6
2
0
8
6
3
4
16
5
4
5
2
7
1
0
0
1
4
2
9
0
2
3
7
6
13
7
10
11
4
2
13
5
8
8
0
16
...

result:

ok 200 lines

Test #6:

score: 0
Accepted
time: 38ms
memory: 3984kb

input:

50
7 9
OOOOOOO..
OOOOOOO..
OOO....OO
....OO..O
.O...OOOO
.....OOOO
OO...OOOO
8 8
.OO.O...
.O......
OOO.OOOO
OO..OOOO
..O.OO.O
O...OOOO
O..OOOOO
O..OOOOO
9 8
OO....OO
OO..OOOO
O..OOOOO
..O..OOO
.....O..
.....O..
OOOOOOOO
OOOOOOOO
.OOOOOOO
8 10
.O.OOOOOOO
...OO.OOOO
......OOOO
O..O....OO
O..OOO.O.O
O....

output:

22
23
22
35
33
15
21
23
24
16
29
15
29
40
23
30
6
25
37
23
25
33
19
12
34
43
44
21
51
29
35
67
22
53
33
53
32
46
50
48
42
45
31
46
45
30
48
53
54
43

result:

ok 50 lines

Test #7:

score: 0
Accepted
time: 351ms
memory: 14508kb

input:

5
1 1000
OO.OOO....O..OOOO..OOOOOOOOOOOOOOOOOOOOOOOOOOOO..OOOOOOOOOOO....OOOOOOOOOOOO...OO.OOOOOOOOOOOO.OOOOOOO....OOOOOOO......OOOOOOOOOOOOOOOOOOOOOOOO..OOO.O.OO..OO....OOOOOOOOO.OO.OOOOO.OOOOOOO....OOOOOOOO.OOOOO...OOOOOOOOOOOOOOOO.OOOOOOOOOOOOOOOOO.OOOOOOOOOOOOOOOOOOOOOOOOOOOO..OOOOOOOOOOOOOOOO.....

output:

0
355
363
384
280

result:

ok 5 lines

Test #8:

score: 0
Accepted
time: 860ms
memory: 22544kb

input:

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

output:

34
458
503
370
493

result:

ok 5 lines

Test #9:

score: -100
Time Limit Exceeded

input:

5
1 1000
O......OOO..O..OO.OO..................................................................................................................................................................................................................................................................................

output:


result: