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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#591071 | #7733. Cool, It’s Yesterday Four Times More | bruteforce_ | TL | 23ms | 3776kb | C++20 | 1.2kb | 2024-09-26 13:57:17 | 2024-09-26 13:57:17 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int dx[4]={1,0,-1,0},dy[4]={0,1,0,-1};
vector<vector<bool>> mp;
int n,m;
bool solve(int ax,int ay,int bx,int by)
{
vector vis(n+2,vector<bool>(m+2));
queue<array<int,4>> q;
q.push({ax,ay,bx,by});
vis[ax][ay]=1;
while(!q.empty())
{
auto [x,y,bx,by]=q.front(); q.pop();
for(int i=0; i<=3; i++)
{
int nx=x+dx[i],ny=y+dy[i],nbx=bx+dx[i],nby=by+dy[i];
if(vis[nx][ny]||mp[nx][ny]==0) continue;
if(mp[nbx][nby]==0) return 1;
q.push({nx,ny,nbx,nby});
vis[nx][ny]=1;
}
}
return 0;
}
void O_o()
{
cin>>n>>m;
mp.assign(n+2,vector<bool>(m+2,0));
vector<array<int,2>> a;
for(int i=1; i<=n; i++)
{
string s;
cin>>s;
for(int j=0; j<m; j++)
{
if(s[j]=='.')
{
mp[i][j+1]=1;
a.push_back({i,j+1});
}
}
}
int ans=0;
for(int i=0; i<a.size(); i++)
{
bool bz=1;
for(auto j=0; j<a.size(); j++)
{
if(i==j) continue;
if(!solve(a[i][0],a[i][1],a[j][0],a[j][1]))
{
bz=0;
break;
}
}
ans+=bz;
}
cout<<ans<<"\n";
}
signed main()
{
ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cout<<fixed<<setprecision(12);
int T=1;
cin>>T;
while(T--)
{
O_o();
}
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3600kb
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: 3776kb
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: 23ms
memory: 3560kb
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
Time Limit Exceeded
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.....