下面的代码怎样改啊，请大家帮忙

Question

void PrintTree(MyHuffmanNode* root, int n) 
{

    if (root == NULL)
    return;
    for (int i=0;i<n;i++) 
    {
        cout<<" ";
    }
    if (root->father==0)
    {
        cout<<"|_";
    } 
        else 
    {
        cout<<"  ";
    }
    cout<<root->data<<endl;
    PrintTree(root->lchild, n+2);
    PrintTree(root->rchild, n+2);

}

错误信息error: invalid conversion from int' toMyHuffmanNode*'
error: initializing argument 1 of `void PrintTree(MyHuffmanNode*, int)'
lchild, rchild都是整形的变量，root是指针，怎样建立联系啊，请大家帮帮忙，谢谢。

Answer 1

强转下试试PrintTree((MyHuffmanNode*)root->lchild, n+2);