编程计算分段函数的值

❶ 用C语言求分段函数值

#include<stdio.h>
intmain()
{doublex,y;
scanf("%lf",&x);
if(x<0)y=x*x-1;
elseif(x<1)y=x*x;
elsey=x*x+1;
printf("%g",y);
return0;
}