#include<stdio.h>
int main() { int n,a[100001],i,t; scanf("%d",&t); while(t–) { scanf("%d",&n); for(i=1;i<=n;i++)
scanf("%d",&a[i]); for(i=1;i<=n;i++) { if(a[a[i]]!=i) { printf("not ambiguous \n"); break; } if(i==n) printf("ambiguous \n"); } } return 0;
}
Take a look at input format again. Your algorithm is fine, but reading input is bugged.
wrong input method
on this problem my problem is evaluated as wrong answer. can you pls help! #include using namespace std; int main() { int a[5],i; for(i=0;i<5;i++) { cin>>a[i]; } cout<<endl; for(i=0;i<5;i++) { if(a[i]==42) break; cout<<a[i]<<endl; } }