Build tree from inorder and preorder

#1

In the function create node why array in and pre is declared in pointer format.

#2

hiii @dips123deepali_c25f140838182212 in c++ you can take vector or array in c we not having dynamic array this is one of the reason and usually it takes to call by reference for that also in c++ we call by reference using & operater in c it takes * to call by reference

#3

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