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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 List<Integer> sol(String[]s){
  11. 		int n=s.length;
  12. 		List<Integer>res=new ArrayList<>(n);
  13. 		for(int i=0;i<n;i++){
  14. 			res.add(0);
  15. 		}
  16. 		int g[][]=new int[200005][26];
  17. 		for(int i=n-1;i>=0;i--){
  18. 			String u=s[i];
  19. 			int count=0;
  20. 			for(int j=0;j<u.length();j++){
  21. 				char c=s[i].charAt(j);
  22. 				count=count+g[j][c-'a'];
  23. 				g[j][c-'a']++;
  24. 			}
  25. 			res.set(i,count);
  26. 		}
  27. 		return res;
  28. 	}
  29. 	public static void main (String[] args) throws java.lang.Exception
  30. 	{
  31. 		// your code goes here
  32. 		Scanner sc=new Scanner(System.in);
  33. 		int n=sc.nextInt();
  34. 		String s[]=new String[n];
  35. 		for(int i=0;i<n;i++){
  36. 			s[i]=sc.next();
  37. 		}
  38. 		List<Integer>res=sol(s);
  39. 		System.out.println(res);
  40. 	}
  41. }
Success #stdin #stdout 0.15s 81104KB
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stdin
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3
abc
dea
bac
stdout
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[1, 0, 0]
https://ideone.com/rMoiUz
language:
Java (HotSpot 12)
created:
2 days ago
visibility:
public

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