题解 | #小乐乐计算函数#

#include <stdio.h>
int max3(int a, int b, int c) {
    int max = a;
    if (max < b) {
        max = b;
    }
    if (max < c) {
        max = c;
    }
    return max;
}
int main() {
    int a, b, c;
    scanf("%d %d %d", &a, &b, &c);
    int d = max3(a + b, b, c), e = max3(a, b + c, c), f = max3(a, b + c, c);
    float res = 1.0 * d / (e + f);
    printf("%0.2f", res);
    return 0;
}