这个程序不知道有什么问题，求解！
#include "stdio.h"void main()
{int x,y;
printf("请输入x:");
scanf("%d",&x);
if(x<1);
{y=x;
printf("x=%3d,y=x=%d\n",x,y);
}
else if(x<10)
{y=2*x-1;
printf("x=%3d,y=2*x-1=%d\n",x,y);
}
else
{y=3*x-11;
printf("x=%3d,y=3*x-11=%d\n",x,y);
}
}
