为使以下程序顺利运行,请在【1】中填写正确的内容;当输入的数值为57时,该程序的运行结果是【2】。#include【1】intmain(){doublex,y;scanf(“%lf%lf”,&x,&y);printf(“\n%f\n”,max(y,x));return0;}doublemax(doublea,doubleb){return(a>b?b-a:a-b);}