">float max3(float a,float b,float c){ float x=0,y=0;; x=a>b?a:b; y=b>c?b:c; return x>y?x:y; } int main(){ float m=0,a=0,b=0,c=0; scanf("%f%f%f",&a,&b,&c); m=max3(a+b,b,c)/(max3(a,b+c,c)+max3(a,b,b+c)); printf("%.2f",m); return 0; }