题解 | #小乐乐计算函数#

#include <stdio.h>
int max3(int a,int b,int c)
{
    int max=a>(b>c?b:c)?a:(b>c?b:c);
    return max;
}
int main()
{
    int a,b,c;
    scanf("%d %d %d",&a,&b,&c);
    double m;
    m=max3(a+b,b,c)*1.0/(max3(a,b+c,c)+max3(a,b,b+c));
    printf("%.2f",m);
    return 0;
}