struct node
{
	int cc,id;//how long,cost
	friend bool operator<(const node &x,const node &y)
	{
		return x.cc>y.cc;
	}
};

与

struct node
{
	int cc,id;//how long,cost
	friend bool operator<(node x,node y)
	{
		return x.cc>y.cc;
	}
};

都能过

在考场上有什么区别吗