AC题解

#include<bits/stdc++.h>
using namespace std;
typedef double D;
D maxi(D a,D b,D c){
if(a>b and a>c) return a;
if(b>a and b>c) return b;
if(c>a and c>b) return c;
}
D m(D a,D b,D c){
return maxi(a,b,c)/(maxi(a+b,b,c)*maxi(a,b,b+c));
}
int main(){
D a,b,c;
cin>>a>>b>>c;
cout<<fixed<<setprecision(2)<<m(a,b,c);
return 0;
}