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  1. import java.util.*;
  2. import java.io.*;
  3.  
  4. public class Main {
  5. 	static int n;
  6.  
  7. 	public static void main(String[] args) throws IOException {
  8. 		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  9. 		StringBuilder sb = new StringBuilder();
  10. 		StringTokenizer st;
  11. 		HashMap<Integer, List<String>> hm = new HashMap<>();
  12.  
  13. 		n = Integer.parseInt(br.readLine());
  14.  
  15. 		for(int i = 0; i < n; i++) {
  16. 			String str = br.readLine();
  17. 			int len = str.length();
  18.  
  19. 			if(!hm.containsKey(len)) {
  20. 				hm.put(len, new ArrayList<String>());
  21. 			}
  22. 			if(!hm.get(len).contains(str))
  23. 				hm.get(len).add(str);
  24. 		}
  25.  
  26. 		for(Integer key : hm.keySet()) {
  27. 			Collections.sort(hm.get(key));
  28. 			for(int i = 0; i < hm.get(key).size(); i++) {
  29. 				sb.append(hm.get(key).get(i) + "\n");
  30. 			}
  31. 		}
  32. 		System.out.println(sb);
  33. 	}
  34. }
Success #stdin #stdout 0.14s 50488KB
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https://ideone.com/b0ysRL
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

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