没有用于调用 &#39;std::vector 的匹配函数<node*> ::push_back(节点*&amp;)&#39;

Question

I am trying to push_back a node pointer into a vector , but I am getting an error, I don't know why.

Here is my code:

struct Node
{
    int data;
    struct Node *left, *right;

    Node(int x){
        int data = x;
        left = right = NULL;
    }
};

vector < struct node* > par,chi,val;

void travel(struct Node* root, struct Node* parent)
{
    if(root == NULL)
    return ;

    travel(root-> left, root);

    par.push_back(parent);
    chi.push_back(root);
    val.push_back(root->data);

    travel(root-> right, root);
}

Answer 1

So far everything seems correct

Once try to change

vector < struct node* > par,chi,val;

with

vector < struct Node* > par,chi,val;

Answer 2

Your code is right but has two mistake.

Replace node* with Node* while declaring a Node* type vector .

vector < struct node* > par,chi,val; should be replaced with vector < struct Node* > par,chi,val;

vector < struct Node* > par,chi,val;

There is another mistake.

You declared val as a Node* type vector. But you are trying to push there an integer value. I think it should be integer type vector. Just declare val as int type vector.

vector < struct Node* > par,chi;
vector < int > val;

Hope it should work.