Please solve doubt in Flatten a Tree

#1

https://ide.codingblocks.com/s/23093
In the above code if I write the below code to print the linked list, I am getting a segmentation fault. Why??
while(l.head!=NULL){
cout<< l.head->data <<" --> ";
l.head = l.head->right;
}

#2

hello @sahilkhan2312000131

no its working fine.

pls run this code and check ->

#3

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