题解 | #小乐乐计算函数#

#include <stdio.h>

double max(double a,double b,double c)
{
    double max=a;
    if(b>a) max=b;
    if(c>b&&c>a) max=c;
    return max;
}
double formula(double a,double b,double c)
{
    double result=0;
    result=max(a+b,b,c)/(max(a,b+c,c)+max(a,b,b+c));
    return result;
}
int main()
{
    double a,b,c;
    scanf("%lf %lf %lf",&a,&b,&c);
    printf("%.2lf",formula(a,b,c));
    return 0;
}