Driver Program to test above functions
int main ( ) { struct Node * root = newNode ( 1 ) ; root -> left = newNode ( 2 ) ; root -> right = newNode ( 3 ) ; root -> left -> left = newNode ( 4 ) ; root -> left -> right = newNode ( 5 ) ; root -> left -> right -> right = newNode ( 15 ) ; root -> right -> left = newNode ( 6 ) ; root -> right -> right = newNode ( 7 ) ; root -> right -> left -> right = newNode ( 8 ) ; struct Node * Node1 , * Node2 ; Node1 = root -> left -> left ; Node2 = root -> right -> right ; isCousin ( root , Node1 , Node2 ) ? puts ( " Yes " ) : puts ( " No " ) ; return 0 ; }