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- #include<iostream>
- #include<cmath>
- using namespace std;
- int pp (int n)
- {
- int i;
- if (sqrt(n)*sqrt(n)==n) return 1;
- else
- return 0;
- }
- int cp (int n)
- {
- int i;
- for(i=1;i<=n/2;i++)
- {
- if(i*i*i==n) return 1;
- }
- return 0;
- }
- int v[100];
- int main ()
- {
- int n, i ,j ;
- cin>>n;
- for(i=1;i<=n;i++)
- {
- cin>>v[i];
- }
- for(i=1;i<=n;i++)
- {
- for(j=i;j<=n;j++)
- if(cp(v[i]*v[j])&& pp(v[i]*v[j]))
- cout<<"("<<v[i]<<" "<<v[j]<<")"<<" ";
- }
- }
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