# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
90965 | kylych03 | Crazy old lady (IZhO13_crazy) | C++14 | 1 ms | 256 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#define int long long
#define sc second
#define fr first
int a[100001];
using namespace std;
main()
{
int t,n,i,res;
cin>>t;
while(t--){
cin>>n;
bool f=true;
for(i=1;i<=n;i++){
cin>>a[i];
if(a[i]!=i){
f=false;
res=i;
}
}
if(n==2 || f){
cout<<0<<endl;
}
else
cout<<a[res]<<endl;
}
}
Compilation message (stderr)
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