题解 | #小乐乐计算函数#

#include<stdio.h>  
int max3(int x, int y, int z)
{
	if (x > y && x > z)
		return x;
	else if (y > x && y > z)
		return y;
	else
		return z;
}
int main()
{
	int a = 0; 
	int b = 0; 
	int c = 0; 
	scanf("%d %d %d", &a, &b, &c); 
	float m = 0.0f; 
	m = (float)max3(a + b, b, c) / (max3(a, b + c, c) + max3(a, b, b + c));
	printf("%.2f\n", m); 
	return 0;
}