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  1. import java.io.*;
  2. import java.util.*;
  3. class X{
  4.     public static void main(String args[]) throws Exception{
  5.         Reader re = new Reader(System.in);
  6.         PrintWriter pw = new PrintWriter(System.out);
  7.         int T = re.nextInt();
  8.         while(T-->0){               // test case loop
  9.  
  10.             //main code goes here
  11.  
  12.             //example below
  13.             int N = re.nextInt();
  14.             int a[] = re.intArray();
  15.  
  16.             Arrays.sort(a);
  17.  
  18.             pw.println(N+" "+Arrays.toString(a));
  19.  
  20.         }
  21.         pw.flush();
  22.     }
  23. }
  24.  
  25.  
  26. class Reader{
  27.     BufferedReader br;
  28.     String words[];
  29.     int p;
  30.     Reader(InputStream in){
  31.         br = new BufferedReader(new InputStreamReader(in));
  32.         words = new String[]{};
  33.         p = 0;
  34.     }
  35.  
  36.     void ensureInput() throws Exception{
  37.         while(p==words.length){
  38.             words = br.readLine().trim().split("\\s+");
  39.             p = 0;
  40.         }
  41.     }
  42.  
  43.     String next() throws Exception{
  44.         ensureInput();
  45.         return words[p++];
  46.     }
  47.  
  48.     int nextInt() throws Exception{
  49.         return Integer.parseInt(next());
  50.     }
  51.  
  52.     int[] intArray() throws Exception{
  53.         ensureInput();
  54.         int a[] = Arrays.stream(words, p, words.length).mapToInt(Integer::parseInt).toArray();
  55.         p = words.length;
  56.         return a;
  57.     }
  58.  
  59.     long nextLong() throws Exception{
  60.         return Long.parseLong(next());
  61.     }
  62.  
  63.     long[] longArray() throws Exception{
  64.         ensureInput();
  65.         long a[] = Arrays.stream(words, p, words.length).mapToLong(Long::parseLong).toArray();
  66.         p = words.length;
  67.         return a;
  68.     }
  69.  
  70.     double nextDouble() throws Exception{
  71.         return Double.parseDouble(next());
  72.     }
  73. }
Success #stdin #stdout 0.13s 4386816KB
comments (?)
stdin
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1
5
17 42 78 12 61
stdout
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5 [12, 17, 42, 61, 78]
https://ideone.com/eXcBuf
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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