QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#234493 | #3162. Mini Battleship | PhantomThreshold# | AC ✓ | 729ms | 3880kb | C++20 | 1.7kb | 2023-11-01 17:56:07 | 2023-11-01 17:56:08 |
Judging History
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'