Driver code
int main ( ) { struct Node * root1 = newNode ( 5 ) ; root1 -> left = newNode ( 2 ) ; root1 -> right = newNode ( 7 ) ; root1 -> left -> left = newNode ( 10 ) ; root1 -> left -> right = newNode ( 11 ) ; struct Node * root2 = newNode ( 6 ) ; root2 -> left = newNode ( 10 ) ; root2 -> right = newNode ( 15 ) ; findFirstUnmatch ( root1 , root2 ) ; return 0 ; }