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  1.  
  2. /*
  3.     Coder : lordzuko
  4.     Time  : 11:03 AM
  5.     Date  : 9/24/2016
  6.  
  7. */
  8.  
  9. import java.io.InputStreamReader;
  10. import java.io.IOException;
  11. import java.io.BufferedReader;
  12. import java.io.OutputStream;
  13. import java.io.PrintWriter;
  14. import java.util.HashMap;
  15. import java.util.StringTokenizer;
  16. import java.io.InputStream;
  17. import java.lang.*;
  18.  
  19.  
  20. class Main {
  21.  
  22.     public static void main(String[] args) throws Exception {
  23.         InputStream inputStream = System.in;
  24.         OutputStream outputStream = System.out;
  25.         InputReader in = new InputReader(inputStream);
  26.         PrintWriter out = new PrintWriter(outputStream);
  27.  
  28.         // Create an object of your solution class here
  29.         BinaryPalindrome solver = new BinaryPalindrome();
  30.         int n = in.nextInt();
  31.         solver.solve(n, in, out);
  32.         out.close();
  33.         System.exit(0);
  34.     }
  35. }
  36.  
  37. class BinaryPalindrome {
  38.  
  39.     private int n,j;
  40.     HashMap<Integer,Integer> m;
  41.     public void solve(int testNumber, InputReader in, PrintWriter out) {
  42.         m = new HashMap<>();
  43.         j=1;
  44.         for(int i=1;i<=10000000;i--){
  45.             if(isPal(i)){
  46.                 m.put(j,i);
  47.                 j++;
  48.             }
  49.         }
  50.  
  51.         while (testNumber-- >0 ){
  52.             n = in.nextInt();
  53.             System.out.println(m.get(n));
  54.         }
  55.     }
  56.  
  57.  
  58.     public static boolean isPal(int orig)
  59.     {
  60.         int copy = orig;
  61.         int reversed = 0;
  62.  
  63.         while(copy!=0)
  64.         {
  65.             reversed <<= 1;
  66.             reversed |= (copy & 1);
  67.             copy >>>= 1;
  68.         }
  69.         return (reversed == orig);
  70.     }
  71. }
  72.  
  73.  
  74. class InputReader {
  75.     private BufferedReader reader;
  76.     private StringTokenizer tokenizer;
  77.  
  78.     public InputReader(InputStream stream) {
  79.         reader = new BufferedReader(new InputStreamReader(stream));
  80.         tokenizer = null;
  81.     }
  82.  
  83.     public String next() {
  84.         while (tokenizer == null || !tokenizer.hasMoreTokens()) {
  85.             try {
  86.                 tokenizer = new StringTokenizer(reader.readLine());
  87.             } catch (IOException e) {
  88.                 throw new RuntimeException(e);
  89.             }
  90.         }
  91.         return tokenizer.nextToken();
  92.     }
  93.  
  94.     public int nextInt() {
  95.         return Integer.parseInt(next());
  96.     }
  97.  
  98. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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3
2 
3 
5
compilation info 
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python2.7/py_compile.py", line 117, in compile
    raise py_exc
py_compile.PyCompileError:   File "prog.py", line 2
    /*
    ^
SyntaxError: invalid syntax
stdout
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Standard output is empty
https://ideone.com/CfQZuH
language:
Python (cpython 2.7.16)
created:
7 years ago
visibility:
secret

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