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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#521726 | #7733. Cool, It’s Yesterday Four Times More | liqingyang# | WA | 1ms | 3668kb | C++17 | 1.4kb | 2024-08-16 14:13:36 | 2024-08-16 14:13:36 |
Judging History
answer
#include<iostream>
#include<bitset>
using namespace std;
int T,n,m;
bitset<1010> f;
inline bool bfs(int S)
{
bitset<1010> mark;
static int q[1010];
int l=1,r=0;
mark.set(q[++r]=S);
while(l<=r)
{
int now=q[l++];
if(now>m&&f.test(now-m)&&!mark.test(now-m))
{
mark.set(q[++r]=now-m);
}
if(now<=(n-1)*m&&f.test(now+m)&&!mark.test(now+m))
{
mark.set(q[++r]=now+m);
}
if((now-1)%m&&f.test(now-1)&&!mark.test(now-1))
{
mark.set(q[++r]=now-1);
}
if((now-1)%m+1<m&&f.test(now+1)&&!mark.test(now+1))
{
mark.set(q[++r]=now+1);
}
}
int l1=1e9,r1=0,l2=1e9,r2=0;
for(int i=1;i<=n*m;i++)
{
if(!mark.test(i))
{
continue;
}
l1=min(l1,(i-1)/m+1);
r1=max(r1,(i-1)/m+1);
l2=min(l2,(i-1)%m+1);
r2=max(r2,(i-1)%m+1);
}
l1-=(S-1)/m+1,r1-=(S-1)/m+1;
l2-=(S-1)%m+1,r2-=(S-1)%m+1;
bitset<1010> f1=mark>>S,f2=mark<<1010-S;
for(int i=1;i<=n*m;i++)
{
int x=(i-1)/m+1,y=(i-1)%m+1;
if(i!=S&&f.test(i)&&x+l1>=1&&x+r1<=n&&y+l2>=1&&y+l2<=m
&&(f1&(f>>i))==f1&&(f2&(f<<1010-i))==f2)
{
return 0;
}
}
return 1;
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(0);
cin>>T;
while(T--)
{
cin>>n>>m;
f.reset();
for(int i=1;i<=n*m;i++)
{
char ch;
cin>>ch;
if(ch=='.')
{
f.set(i);
}
}
int ans=0;
for(int i=1;i<=n*m;i++)
{
if(f.test(i))
{
ans+=bfs(i);
}
}
cout<<ans<<endl;
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3612kb
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: -100
Wrong Answer
time: 1ms
memory: 3668kb
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 5 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 1 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 4 1 3 3 4 0 2 11 2 2 4 0 4 3 4 2 1 2 3 0 5 0 16 4 3 2 6 0 8 3 3 1...
result:
wrong answer 12th lines differ - expected: '7', found: '5'