题解 | #小乐乐计算函数#

知识点：

函数：函数

#include <iostream>
using namespace std;

int max3(int a, int b, int c);

int main() {
    int a, b, c;
    cin >> a >> b >> c;
    double res;

    res = (double)max3(a + b, b, c) / (max3(a, b + c, c) + max3(a, b, b + c));

    printf("%.2f", res);

    return 0;
}

int max3(int a, int b, int c) {
    int max;

    max = a > b ? a : b;
    max = max > c ? max : c;

    return max;
}