scanf的用法问题,为什么输入不对?

Question

#include
int main()
{
int a, b, c;
scanf("%d%d%d", a, b, c);
printf("%d%d%d", a, b, c);
return 0;
}

Answer 1

scanf("%d%d%d", a, b, c);
-->
scanf("%d%d%d", &a, &b, &c);