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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 Main
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13. 		Scanner sc = new Scanner(System.in);
  14. 		int n = sc.nextInt();
  15. 		int x = sc.nextInt();
  16. 		int[] a = new int[n];
  17. 		for(int i=0;i<n;i++){
  18. 			a[i] = sc.nextInt();
  19. 		}
  20.  
  21. 		int res = 0;
  22. 		int sum = 0;
  23. 		int j = -1;
  24. 		for(int i=0;i<n;i++){
  25. 			sum += a[i];
  26. 			if(j == -1){
  27. 				if(sum%x != 0){
  28. 					j = i;
  29. 				}
  30. 			}
  31. 			if(sum%x != 0){
  32. 				res = Math.max(res, i+1);
  33. 			}
  34. 			else{
  35. 				res = Math.max(res, i-j);
  36. 			}
  37. 		}
  38. 		System.out.println(res);
  39. 	}
  40. }
Success #stdin #stdout 0.17s 56380KB
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https://ideone.com/3DqdI7
language:
Java (HotSpot 12)
created:
8 hours ago
visibility:
public

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