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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#234493#3162. Mini BattleshipPhantomThreshold#AC ✓729ms3880kbC++201.7kb2023-11-01 17:56:072023-11-01 17:56:08

Judging History

你现在查看的是最新测评结果

  • [2023-11-01 17:56:08]
  • 评测
  • 测评结果:AC
  • 用时:729ms
  • 内存:3880kb
  • [2023-11-01 17:56:07]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int main()
{
	ios_base::sync_with_stdio(false);
	int n,k;
	cin>>n>>k;
	vector<string> a(n+5);
	for(int i=1;i<=n;i++)
	{
		string s;
		cin>>s;
		a[i]=' '+s;
	}
	vector<int> sz(k+5);
	for(int i=1;i<=k;i++)
	{
		cin>>sz[i];
	}
	vector<vector<int>> b(n+5,vector<int>(n+5));
	auto chk=[&]()
	{
		for(int i=1;i<=n;i++)
		{
			for(int j=1;j<=n;j++)
			{
				if(a[i][j]=='X' and b[i][j])
					return false;
			}
		}
		return true;
	};
	auto chk2=[&]()
	{
		for(int i=1;i<=n;i++)
		{
			for(int j=1;j<=n;j++)
			{
				if(a[i][j]=='O' and not b[i][j])
					return false;
			}
		}
		return true;
	};
	int ans=0;
	function<void(int)> dfs=[&](int now)
	{
		if(not chk())return;
		if(now==k+1){if(chk2()){ans++;}return;}
		int s=sz[now];
		for(int i=1;i<=n;i++)
		{
			for(int j=1;j<=n;j++)
			{
				if(b[i][j])continue;
				if(s==1)
				{
					b[i][j]=1;
					dfs(now+1);
					b[i][j]=0;
				}
				else
				{
					if(j+s-1<=n)
					{
						int ok=1;
						for(int t=j;t<=j+s-1;t++)
							if(b[i][t]==1)
							{
								ok=0;
								break;
							}
						if(ok)
						{
							for(int t=j;t<=j+s-1;t++)
								b[i][t]=1;
							dfs(now+1);
							for(int t=j;t<=j+s-1;t++)
								b[i][t]=0;
						}
					}
					if(i+s-1<=n)
					{
						int ok=1;
						for(int t=i;t<=i+s-1;t++)
							if(b[t][j]==1)
							{
								ok=0;
								break;
							}
						if(ok)
						{
							for(int t=i;t<=i+s-1;t++)
								b[t][j]=1;
							dfs(now+1);
							for(int t=i;t<=i+s-1;t++)
								b[t][j]=0;
						}
					}
				}
			}
		}
	};
	dfs(1);
	cout<<ans<<endl;
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3636kb

input:

4 3
....
.OX.
....
O..X
3
2
1

output:

132

result:

ok single line: '132'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3848kb

input:

4 4
.X.X
.XX.
...X
....
1
2
3
4

output:

6

result:

ok single line: '6'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

2 2
..
..
2
2

output:

4

result:

ok single line: '4'

Test #4:

score: 0
Accepted
time: 2ms
memory: 3848kb

input:

5 5
.....
.....
.....
.....
.....
5
4
3
3
2

output:

80848

result:

ok single line: '80848'

Test #5:

score: 0
Accepted
time: 208ms
memory: 3636kb

input:

5 5
.....
.....
.....
.....
.....
1
1
1
1
1

output:

6375600

result:

ok single line: '6375600'

Test #6:

score: 0
Accepted
time: 729ms
memory: 3576kb

input:

5 5
.....
.....
.....
.....
.....
2
2
2
2
2

output:

18840000

result:

ok single line: '18840000'

Test #7:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

5 5
.....
XX...
..XXX
XXXX.
....X
5
1
4
2
3

output:

1

result:

ok single line: '1'

Test #8:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

5 5
OOOOO
XXOOO
OOXXX
XXXXO
OOOOX
5
1
4
2
3

output:

1

result:

ok single line: '1'

Test #9:

score: 0
Accepted
time: 10ms
memory: 3584kb

input:

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

output:

1

result:

ok single line: '1'

Test #10:

score: 0
Accepted
time: 10ms
memory: 3644kb

input:

5 5
OOOOO
OOOOO
OOOOO
OOOOO
OOOOO
5
1
4
2
3

output:

0

result:

ok single line: '0'

Test #11:

score: 0
Accepted
time: 0ms
memory: 3596kb

input:

5 5
OOOOO
OOOOO
OOOOO
OOOOO
OOOOO
5
5
5
5
5

output:

240

result:

ok single line: '240'

Test #12:

score: 0
Accepted
time: 0ms
memory: 3508kb

input:

1 1
.
1

output:

1

result:

ok single line: '1'

Test #13:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

1 1
O
1

output:

1

result:

ok single line: '1'

Test #14:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

1 1
X
1

output:

0

result:

ok single line: '0'

Test #15:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

4 5
....
....
....
....
4
4
4
4
4

output:

0

result:

ok single line: '0'

Test #16:

score: 0
Accepted
time: 4ms
memory: 3644kb

input:

5 5
OX.XO
XX.XX
.....
XX.XX
OX.XO
1
1
2
1
1

output:

192

result:

ok single line: '192'

Test #17:

score: 0
Accepted
time: 2ms
memory: 3620kb

input:

5 5
OX.XO
XX.XX
.....
XX.XX
OX.XO
1
1
2
2
1

output:

0

result:

ok single line: '0'

Test #18:

score: 0
Accepted
time: 0ms
memory: 3584kb

input:

2 2
O.
.X
2
1

output:

2

result:

ok single line: '2'

Test #19:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

3 5
...
...
...
2
2
1
2
2

output:

432

result:

ok single line: '432'

Test #20:

score: 0
Accepted
time: 26ms
memory: 3880kb

input:

5 4
O...O
.....
..O..
.....
O...O
2
2
2
2

output:

0

result:

ok single line: '0'

Test #21:

score: 0
Accepted
time: 0ms
memory: 3644kb

input:

3 2
O.O
.X.
...
3
2

output:

8

result:

ok single line: '8'

Test #22:

score: 0
Accepted
time: 51ms
memory: 3644kb

input:

5 5
X...O
.....
O...X
O.X..
.....
1
1
2
2
5

output:

6856

result:

ok single line: '6856'

Test #23:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

3 3
.O.
...
OO.
3
2
2

output:

44

result:

ok single line: '44'

Test #24:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

4 3
....
..X.
....
O..X
4
3
1

output:

70

result:

ok single line: '70'

Test #25:

score: 0
Accepted
time: 0ms
memory: 3808kb

input:

3 3
O.X
.X.
XO.
1
3
3

output:

0

result:

ok single line: '0'

Test #26:

score: 0
Accepted
time: 0ms
memory: 3644kb

input:

2 2
O.
..
1
2

output:

6

result:

ok single line: '6'

Test #27:

score: 0
Accepted
time: 1ms
memory: 3644kb

input:

4 4
.X..
..XX
.O..
X..O
1
3
1
1

output:

714

result:

ok single line: '714'

Test #28:

score: 0
Accepted
time: 0ms
memory: 3528kb

input:

2 2
..
OO
1
2

output:

4

result:

ok single line: '4'

Test #29:

score: 0
Accepted
time: 1ms
memory: 3584kb

input:

4 4
....
O...
....
.OO.
3
1
1
2

output:

2390

result:

ok single line: '2390'

Test #30:

score: 0
Accepted
time: 0ms
memory: 3612kb

input:

3 3
...
.X.
.XO
2
1
2

output:

36

result:

ok single line: '36'

Test #31:

score: 0
Accepted
time: 7ms
memory: 3636kb

input:

5 5
O.X.O
O...O
XO...
.X.X.
.O...
1
3
1
3
5

output:

48

result:

ok single line: '48'

Test #32:

score: 0
Accepted
time: 1ms
memory: 3644kb

input:

5 5
OO.X.
....X
X....
.....
.....
2
2
5
4
2

output:

3204

result:

ok single line: '3204'

Test #33:

score: 0
Accepted
time: 0ms
memory: 3584kb

input:

5 5
..OX.
..X..
.....
O....
OXX..
5
1
1
2
5

output:

556

result:

ok single line: '556'

Test #34:

score: 0
Accepted
time: 0ms
memory: 3656kb

input:

5 2
.....
..X..
.X...
...O.
.....
2
4

output:

112

result:

ok single line: '112'

Test #35:

score: 0
Accepted
time: 0ms
memory: 3576kb

input:

2 2
..
O.
1
1

output:

6

result:

ok single line: '6'

Test #36:

score: 0
Accepted
time: 1ms
memory: 3656kb

input:

5 4
.X.X.
X..O.
...O.
.....
X..X.
1
3
4
2

output:

2722

result:

ok single line: '2722'

Test #37:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

3 3
O..
XO.
.O.
1
1
2

output:

20

result:

ok single line: '20'

Test #38:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

4 3
...O
..O.
....
....
1
1
1

output:

84

result:

ok single line: '84'

Test #39:

score: 0
Accepted
time: 0ms
memory: 3588kb

input:

2 2
..
X.
1
2

output:

2

result:

ok single line: '2'

Test #40:

score: 0
Accepted
time: 0ms
memory: 3644kb

input:

4 3
X..O
....
O...
.X..
1
4
2

output:

63

result:

ok single line: '63'

Test #41:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

2 2
.O
.X
2
2

output:

0

result:

ok single line: '0'

Test #42:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

4 2
...O
....
....
....
4
2

output:

44

result:

ok single line: '44'

Test #43:

score: 0
Accepted
time: 0ms
memory: 3588kb

input:

4 2
XO..
....
X...
.X..
4
4

output:

0

result:

ok single line: '0'

Test #44:

score: 0
Accepted
time: 0ms
memory: 3684kb

input:

4 4
..O.
....
..X.
.XOO
4
4
1
1

output:

8

result:

ok single line: '8'

Test #45:

score: 0
Accepted
time: 0ms
memory: 3612kb

input:

4 2
....
....
....
..X.
2
2

output:

334

result:

ok single line: '334'