# include
# include
int main(void)
{
int x,y;
printf("请输入x的值：\n");
scanf("%d",&x);
if(x<0)
{
y=x-1;
}
else if(x<=10&&x>=0)
{
y=2*x-1;
}
else
{
y=3*x-11;
}
printf("y的值为：%d\n",y);
system("pause");
return 0;
}
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