QOJ.ac
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 |
---|---|---|---|---|---|---|---|---|---|
#558971 | #8838. Jesse's Job | lntano | WA | 1ms | 3560kb | C++14 | 763b | 2024-09-11 19:29:53 | 2024-09-11 19:29:57 |
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 {
cout<<n-2<<'\n';
cout<<ans.size()/2<<'\n';
int cnt=0,m=ans.size()/2;
for(auto x:ans){
cnt++;
cout<<x<<" ";
if(cnt==m) break;
}
cout<<'\n';
}
}
int main(){
ios::sync_with_stdio(false),cin.tie(nullptr),cout.tie(nullptr);
int t=1;
cin>>t;
while(t--) solve();
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3544kb
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 3 1 3 4
result:
ok Correct (3 test cases)
Test #2:
score: -100
Wrong Answer
time: 1ms
memory: 3560kb
input:
872 6 1 5 2 6 3 4 6 5 2 1 3 4 6 4 2 1 3 4 6 2 3 1 4 5 6 6 4 5 1 6 2 3 6 6 2 3 1 4 5 5 2 1 3 4 5 6 1 2 6 4 3 5 4 2 1 4 3 6 1 6 4 2 5 3 6 6 1 3 5 4 2 6 2 1 4 5 6 3 6 3 4 1 5 6 2 6 4 1 5 3 2 6 6 5 2 1 6 3 4 6 4 1 6 2 5 3 6 5 1 3 6 2 4 6 6 2 5 4 3 1 6 6 2 5 3 1 4 6 5 2 4 1 3 6 6 6 1 3 2 4 5 6 2 3 4 6 5 ...
output:
6 1 1 6 4 1 5 4 3 4 2 1 2 6 3 1 2 3 6 4 1 4 6 3 6 4 1 6 5 4 5 2 1 2 6 1 1 4 2 1 2 6 1 1 6 3 1 6 2 6 2 1 2 6 2 1 3 6 5 1 4 3 5 2 6 3 1 5 3 6 3 1 4 2 6 3 1 5 2 6 2 1 6 6 5 1 6 4 3 5 6 4 1 5 3 4 6 5 1 6 5 4 2 6 5 1 2 3 4 6 6 5 1 5 3 2 6 6 2 1 4 4 3 1 4 2 6 2 1 3 6 1 1 6 1 1 ...
result:
wrong answer Participant didn't find permutation (test case 25)