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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 ArrayList<Long> printDivisors(long n) {
  11.         ArrayList<Long> divisors = new ArrayList<>();
  12.  
  13.         for (long i = 1; i <= Math.sqrt(n); i++) {
  14.             if (n % i == 0) {
  15.                 if (n / i == i) {
  16.                     divisors.add(i);
  17.                 } else {
  18.                     divisors.add(i); 
  19.                     divisors.add(n / i); 
  20.                 }
  21.             }
  22.         }
  23.  
  24.         return divisors;
  25.     }
  26. 	public static void main (String[] args) throws java.lang.Exception
  27. 	{
  28. 		long n = 15; 
  29.         ArrayList<Long> divisors = printDivisors(n);
  30.  
  31.  
  32.         Collections.sort(divisors, Collections.reverseOrder());
  33.  
  34.  
  35.         for (long divisor : divisors) {
  36.             System.out.print(divisor + " ");
  37.         }
  38. 	}
  39. }
Success #stdin #stdout 0.09s 55652KB
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Standard input is empty
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15 5 3 1
https://ideone.com/rNhNFT
language:
Java (HotSpot 12)
created:
7 hours ago
visibility:
public

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