[Error] invalid operands of types 'int*' and 'int' to binary 'operator&'怎么解决

int main()
{
    int a,b,c;
    scanf("%d %d", &a &b);
    if(a<b)
    {
        a=c;
        b=a;
        c=b;
    }
    printf("max=%d",a);
    return 0;
 } 

报错 [Error] invalid operands of types 'int*' and 'int' to binary 'operator&'（scanf)那行

scanf("%d %d", &a &b); &a &b 间漏了','逗号，修改为： scanf("%d %d", &a, &b); ,下面两数交换也有问题，修改如下：

int main()
{
    int a, b, c;
    scanf("%d %d", &a, & b);//修改
    if (a < b)
    {
        c = a;//a = c;修改
        a = b;//b = a;修改
        b = c;//c = b;修改
    }
    printf("max=%d", a);
    return 0;
}