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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Codechef
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		// your code goes here
  10. 		Scanner sc=new Scanner(System.in);
  11. 		int t=sc.nextInt();
  12. 		while(t-->0){
  13. 		    int n=sc.nextInt();
  14. 		    int []nums=new int[n];
  15. 		    for(int i=0;i<n;i++){
  16. 		        nums[i]=sc.nextInt();
  17. 		    }
  18. 		    System.out.println(solve(nums));
  19. 		}
  20. 	}
  21. 	static int sum(int n){
  22. 	    if(n==0)return 0;
  23. 	    return (n%10)+sum(n/10);
  24. 	}
  25. 	static int solve(int[]nums){
  26. 	    HashMap<Integer,List<Integer>>map=new HashMap<>();
  27. 	    for(int num:nums){
  28. 	        int sumD=sum(num);
  29. 	        map.computeIfAbsent(sumD,k->new ArrayList<>()).add(num);
  30. 	    }
  31. 	    int mx=-1;
  32. 	    for (Map.Entry<Integer,List<Integer>>set: map.entrySet()) {
  33. 	        Integer key=set.getKey();
  34. 	        List<Integer>value=set.getValue();
  35. 	        Collections.sort(value,Collections.reverseOrder());
  36. 	        int val=0;
  37. 	        if(value.size()<2)continue;
  38. 	        val+=value.get(0);
  39. 	        val+=value.get(1);
  40. 	        mx=Math.max(mx,val);
  41. 	    }
  42. 	    return mx;
  43. 	}
  44.  
  45. }
Success #stdin #stdout 0.18s 56596KB
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stdin
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3
4
51 17 71 42
3
60 42 33
3
51 32 43
stdout
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93
102
-1
https://ideone.com/4MzaDK
language:
Java (HotSpot 12)
created:
8 days ago
visibility:
public

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