题解 | #小乐乐计算函数#

#include <stdio.h>
int max1(int a, int b, int c)
{
	if (a > b)b = a;
	return b > c ? b : c;
}
int main()
{
	int a = 0, b = 0, c = 0;
	scanf("%d %d %d", &a, &b, &c);
	printf("%.2f\n", (float)max1(a + b, b, c) / (max1(a, b + c, c) + max1(a, b, b + c)));
	return 0;
}