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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13. 		System.out.println(getRequiredNumberOfBits(2)) ;
  14. 	}
  15.  
  16.     public static int getRequiredNumberOfBits(int N) {
  17.         /*
  18.           Please implement this method to
  19.           return the number of bits which is just enough to store any integer from 0 to N-1 inclusively
  20.           for any int N > 0
  21.           Example: to store 5 integers from 0 to 4 you need 3 bits: 000, 001, 010, 011, 100 and 101
  22.         */
  23.  
  24.         int number = 2 ;
  25.         int count = 1 ;
  26.         while(N > number){
  27.         	number = number*2 ;
  28.         	count++ ;
  29.  
  30.         }
  31.  
  32.         return count ;
  33.  
  34.     }
  35.  
  36. }
Success #stdin #stdout 0.09s 46932KB
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https://ideone.com/7DsiOI
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

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