#include <iostream>
using namespace std;
int circonferenza;
float diametro;
float raggio;
int main() {
cout<<"inserici la circonferenza espressa in cm:"<<endl;
cin>>circonferenza;
diametro=circonferenza/3.14;
raggio=diametro/2.0;
cout<<"diametro= "<<diametro<<endl;
cout<<"raggio= "<<raggio<<endl;
return 0;
}
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