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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. 	{
  12. 		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
  13.         int paraNum = 1;
  14.         int count = 0;
  15.         String line;
  16.         int paragraphWithMaxWords = 0;
  17.         int maxWords = 0;
  18.  
  19.         Map<String, Integer> map = new HashMap<String, Integer>();
  20.  
  21.         while ((line = bufferedReader.readLine()) != null) {
  22.             if (line.trim().isEmpty()) {
  23.                 continue;
  24.             } else {
  25.                 break;
  26.             }
  27.         }
  28.  
  29.         do {
  30.             if (line != null) {
  31.  
  32.                 if (line.trim().isEmpty()) {
  33.                     if (maxWords < count) {
  34.                         paragraphWithMaxWords = paraNum;
  35.                         maxWords = count;
  36.                     }
  37.                     paraNum++;
  38.                     count = 0;
  39.                     while ((line = bufferedReader.readLine()) != null) {
  40.                         if (line.trim().isEmpty()) {
  41.                             continue;
  42.                         } else {
  43.                             break;
  44.                         }
  45.                     }
  46.                 }
  47.  
  48.                 String[] words = line.split("\\s");
  49.                 for (String word : words) {
  50.                 	System.out.println(word);//for debug purposes
  51.                     if (!map.containsKey(word)) {
  52.                         count++;
  53.                     } else {
  54.                         int paraNumber = map.get(word);
  55.                         if (paraNumber != paraNum) {
  56.                             count++;
  57.                         }
  58.                     }
  59.                     map.put(word, paraNum);
  60.                 }
  61.             }
  62.         } while ((line = bufferedReader.readLine()) != null);
  63.  
  64.         if (maxWords < count){
  65.             paragraphWithMaxWords = paraNum;
  66.             maxWords = count;
  67.         }
  68.  
  69.  
  70.         if (map.size() == maxWords)
  71.             System.out.println("paragraph num : " + paragraphWithMaxWords);
  72.         else
  73.             System.out.println("no such paragraph");
  74. 	}
  75. }
Success #stdin #stdout 0.1s 320320KB
comments (?)
stdin 
b!

a b
stdout 
b!
a
b
no such paragraph
https://ideone.com/ypsqVo
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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