圆和正方形

新504章紫蕗

#include<iostream>
using namespace std;
float c,s1,s2,r;
int main()
{
        cin>>c;
        s1=(c/4)*(c/4);
        r=c/3.14/2;
        s2=r*r*3.14;
        cout<<s2/s1<<endl;
        if(s1>s2) cout<<s1<<"  "<<s2<<"正方形大";
        else cout<<s1<<"  "<<s2<<"圆大";
        return 0;
}