题解 | #小乐乐计算函数#

#include <iostream>
#include <iomanip>
using namespace std;
int max3(int u, int v, int w){
    u = u>v?u:v;  //真好用
    u = u>w?u:w;
    return u;
}
int main() {
    int a, b, c;
    float m;
    while (cin >> a >> b >> c) { 
        m = (max3(a,b+c,c)+max3(a,b,b+c));
        m = max3(a+b,b,c)/m;
        cout << fixed << setprecision(2) << m << endl;
    }
}