题解 | #小乐乐计算函数#

#include <stdio.h>

int max3(int a, int b, int c)
{
   if (a >= b && a >= c) {
        return a;
   }
   else if (b >= a && b >= c) {
        return b;
   }
   else {
        return c;
   }
}
int main() {
    int a,b,c;
    float m1,m2,m3;
    scanf("%d %d %d", &a,&b,&c);
    m1 = max3(a+b, b, c);
    m2 = max3(a, b+c, c);
    m3 = max3(a, b, b+c);
    printf("%.2f", m1 / (m2 + m3));
    
    return 0;
}