//Can anyone help me out in the question

// my solution

void solve(Node *node,vector&vec){

```
if(node == NULL){//base
return;
}
if(node->left==NULL && node->right != NULL){
vec.push_back(node->right->data);
}
if(node->right==NULL && node->left != NULL){
vec.push_back(node->left->data);
}
noSibling(node->left);
noSibling(node->right);
```

}

vectornoSibling(Node* node)

{

vectorvec;

solve(node,vec);

return vec;

}

// There is something that I want to change in the code