text: 15 / \ 10 20 / \ / \ 8 12 16 25
code: struct node * root = NewNode ( 15 ) ; root -> left = NewNode ( 10 ) ; root -> right = NewNode ( 20 ) ; root -> left -> left = NewNode ( 8 ) ; root -> left -> right = NewNode ( 12 ) ; root -> right -> left = NewNode ( 16 ) ; root -> right -> right = NewNode ( 25 ) ; int target = 33 ; if ( isPairPresent ( root , target ) == false ) printf ( " No such values are found " getchar ( ) ; return 0 ; }