链接：http://acm.nyist.net/JudgeOnline/problem.php?pid=202


旋转不影响中序遍历，，，坑啊


#include <iostream>
#include <cstring>
using namespace std;

class node
{
public:
    int left;
    int right;
};
node tree[20];
void inordervisit(int n)
{
    if(n==-1)
        return ;
    inordervisit(tree[n].left);
    cout<<n<<endl;
    inordervisit(tree[n].right);

}
int main()
{
    int T,n;
    cin>>T;
    while(T--)
    {
        memset(tree,-1,sizeof(tree));
        int a,l,r;
        cin>>n;
        for(int i=0;i<n;i++)
        {
            cin>>a>>l>>r;
            tree[a].left=l;
            tree[a].right=r;
        }
        int m,x,y;
        cin>>m;
        while(m--)
        {
            cin>>x>>y;
        }
        inordervisit(0);



    }

    return 0;
}