QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #710855 | #6723. Grid with Arrows | xunxxxx | WA | 67ms | 13936kb | C++23 | 1.5kb | 2024-11-04 22:36:57 | 2024-11-04 22:36:59 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
void solve()
{
int n,m;
cin>>n>>m;
vector<vector<int>>a(n+1,vector<int>(m+1));
vector<vector<int>>b(n+1,vector<int>(m+1));
vector<vector<int>>id(n+1,vector<int>(m+1));
int cnt=1;
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++)
{
char ch;
cin>>ch;
if(ch=='r') a[i][j]=1;
else if(ch=='l') a[i][j]=2;
else if(ch=='u') a[i][j]=3;
else a[i][j]=4;
}
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) id[i][j]=cnt++;
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) cin>>b[i][j];
vector<int>in(n*m+1,0);
vector<int>g(n*m+1,0);
for(int i=1;i<=n;i++)
for(int j=1;j<=m;j++)
{
int ni=i,nj=j;
if(a[i][j]==1) nj+=b[i][j];
else if(a[i][j]==2) nj-=b[i][j];
else if(a[i][j]==3) ni-=b[i][j];
else ni+=b[i][j];
if(ni<1||ni>n||nj<1||nj>m)
{
g[id[i][j]]=-1;
continue;
}
g[id[i][j]]=id[ni][nj];
in[id[ni][nj]]++;
}
vector<int>vt(n*m+1,0);
int f=0;
for(int i=1;i<=n;i++)
{
if(!in[i])
{
int u=i;
vector<int>v;
while(u!=-1&&!vt[u])
{
vt[u]=1;
v.push_back(u);
u=g[u];
}
if(v.size()==n*m)
{
cout<<"Yes\n";
return ;
}
f=1;
break;
}
}
if(!f)
{
int u=1;
vector<int>v;
while(u!=-1&&!vt[u])
{
vt[u]=1;
v.push_back(u);
u=g[u];
}
if(v.size()==n*m)
{
cout<<"Yes\n";
return ;
}
}
cout<<"No\n";
}
signed main()
{
ios::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
int T=1;
cin>>T;
while(T--) solve();
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3556kb
input:
2 2 3 rdd url 2 1 1 1 1 2 2 2 rr rr 1 1 1 1
output:
Yes No
result:
ok 2 token(s): yes count is 1, no count is 1
Test #2:
score: -100
Wrong Answer
time: 67ms
memory: 13936kb
input:
1109 5 8 rddddldl drruludl rrldrurd urrrlluu uurrulrl 4 4 1 2 4 3 1 6 1 3 5 1 1 1 3 6 2 4 1 1 2 1 1 1 2 3 4 2 4 3 3 3 4 1 1 2 2 5 1 5 7 9 rdrddrdll urrdruldl ruullrulu drrlrlddl rrrdddlll ruulururl ruurrlluu 7 1 1 1 2 1 2 3 6 1 7 3 1 3 1 2 1 8 2 2 1 2 4 3 1 2 2 2 2 4 1 1 5 3 3 1 3 4 6 1 2 1 2 7 7 6 ...
output:
Yes No No No Yes No No Yes Yes Yes No No No Yes Yes No Yes No Yes No No No Yes Yes No No No No No No No No No No Yes No No No No Yes Yes Yes No Yes No No No Yes Yes No Yes No Yes No Yes No No No Yes No Yes Yes Yes Yes No Yes Yes No Yes Yes No No No Yes No No Yes Yes No No Yes Yes Yes Yes Yes No Yes ...
result:
wrong answer expected YES, found NO [7th token]