Driver code
public static void Main ( String [ ] args ) { int N = 25 ; Node root = new Node ( ) ; insert ( root , 19 ) ; insert ( root , 2 ) ; insert ( root , 1 ) ; insert ( root , 3 ) ; insert ( root , 12 ) ; insert ( root , 9 ) ; insert ( root , 21 ) ; insert ( root , 19 ) ; insert ( root , 25 ) ; Console . Write ( " { 0 } " , findFloor ( root , N ) ) ; } }