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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. 	    Scanner in = new Scanner(System.in);
  12. 		int a = in.nextInt();
  13. 		int k = in.nextInt();
  14. 		 int g=0;
  15. 		int s[]=new int[a];
  16. 		for(int i=0;i<a;i++){
  17. 		    s[i]=in.nextInt();
  18. 		}
  19. 		ArrayList<Integer> list=new ArrayList<Integer>();
  20. 		for(int i=0;i<a;i++){
  21.  
  22. 		    for(int j=i+1;j<a;j++){
  23. 		        g=findGCD(s[i],s[j]);
  24. 		    }
  25. 		    if(!list.contains(g)){
  26. 		        list.add(g);
  27. 		    }
  28. 		}
  29. 		System.out.print(list.size());
  30. 	}
  31. 	private static int findGCD(int number1, int number2) {
  32.  
  33.         if(number2 == 0){
  34.             return number1;
  35.         }
  36.         return findGCD(number2, number1%number2);
  37.     }
  38. }
Success #stdin #stdout 0.17s 35520KB
comments (?)
stdin
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5 5
4 8 12 16 18
stdout
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2
https://ideone.com/ru05NF
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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