text: Convert X into Y by repeatedly multiplying X with 2 or appending 1 at the end | Java program for the above approach ; Function to check if X can be converted to Y by multiplying X by 2 or appending 1 at the end ; Iterate until Y is at least X ; If Y is even ; If the last digit of Y is 1 ; Otherwise ; Check if X is equal to Y ; Driver Code
code: import java . util . * ; class GFG { static void convertXintoY ( int X , int Y ) { while ( Y > X ) { if ( Y % 2 == 0 ) Y /= 2 ; else if ( Y % 10 == 1 ) Y /= 10 ; else break ; } if ( X == Y ) System . out . print ( " Yes " ) ; else System . out . print ( " No " ) ; } public static void main ( String [ ] args ) { int X = 100 , Y = 40021 ; convertXintoY ( X , Y ) ; } }