题解 | #小乐乐计算函数#

#include <stdio.h>

int max3(int x, int y, int z)
{
    if (x > y)
        return x > z ? x : z;
    else
        return z > y ? z : y;
}

int main()
{
    int a = 0;
    int b = 0;
    int c = 0;
    scanf("%d %d %d", &a, &b, &c);
    int d = max3(a + b, b, c);
    int e = max3(a, b + c, c);
    int f = max3(a, b, b + c);
    float m = (float)d / (e + f);
    printf("%.2f", m);
    return 0;
}