How below line invokes the level order input function
cin >> root;
Usually we do
Node *root = buildTree();
which in turn takes the input in level order
Solution code related doubt
@abhi_11,
watch earier lecture he may have overloaded operator >> for taking input nothing else, u can do like u said also and actually thats how u ll be doing everytime
just for overloading concept he may have done that so dont worry
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