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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#559197 | #8838. Jesse's Job | lntano | WA | 0ms | 3840kb | C++14 | 832b | 2024-09-11 20:45:00 | 2024-09-11 20:45:01 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
void solve(){
int n;
cin>>n;
vector<int> p(n+1);
vector<bool> b(n+1);
for(int i=1;i<=n;i++){
cin>>p[i];
}
vector<int> ans;
int k=1;
while(!b[k]){
ans.push_back(k);
b[k]=1;
k=p[k];
}
if(ans.size()!=n){
cout<<n<<'\n';
cout<<ans.size()<<'\n';
for(auto x:ans) cout<<x<<" ";
cout<<'\n';
}else {
if(n==2){
cout<<0<<'\n';
cout<<1<<'\n';
cout<<1<<'\n';
return;
}
cout<<n-2<<'\n';
cout<<2<<'\n';
for(int i=1;i<=n;i++){
if(p[i]==1){
k=i;
break;
}
}
cout<<1<<" "<<k<<'\n';
}
}
int main(){
ios::sync_with_stdio(false),cin.tie(nullptr),cout.tie(nullptr);
int t=1;
cin>>t;
while(t--) solve();
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 3840kb
input:
3 2 2 1 4 2 1 4 3 6 3 5 4 2 6 1
output:
0 1 1 4 2 1 2 4 2 1 6
result:
wrong answer Participant didn't find permutation (test case 3)