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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.io.BufferedReader;
  4. import java.io.IOException;
  5. import java.io.InputStreamReader;
  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 IOException{
  11.     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  12.     int tc = Integer.parseInt(br.readLine());//I get Numberformat Exception here
  13.     for(int i=0;i<tc;i++)                    // Even if my inputs are on separate lines
  14.         {
  15.     String original = br.readLine();
  16.     palindrome(original);
  17.         }
  18.        }
  19.  
  20. public static void palindrome(String original)
  21. {
  22.      String reverse="";
  23.     int length = original.length();
  24.         for ( int i = length - 1 ; i >= 0 ; i-- )
  25.         reverse = reverse + original.charAt(i);
  26.     if (original.equals(reverse))
  27.     {
  28.      System.out.println(0);
  29.     }
  30.     else
  31.      {
  32.           char[] org = original.toCharArray();
  33.           int len = org.length;
  34.           int mid = len / 2;
  35.  
  36.           if(len % 2 == 0)
  37.           {
  38.             char[] front = new char[mid];
  39.             char[] back = new char[mid];
  40.             for(int i=0;i<mid;i++)
  41.             {
  42.                 front[i] = org[i];
  43.             }
  44.             int j=0;
  45.             for(int i=len-1;i>=mid;i--)
  46.             {
  47.                 back[j] = org[i];
  48.                 j++;
  49.                 while(j > mid)
  50.                 {
  51.                     break;
  52.                 }
  53.             }
  54.             change(front,back,mid);
  55.           }
  56.           else
  57.           {
  58.             char[] front = new char[mid];
  59.             char[] back = new char[mid];
  60.             for(int i=0;i<mid;i++)
  61.             {
  62.                 front[i] = org[i];
  63.             }
  64.             int j=0;
  65.             for(int i=len-1;i>mid;i--)
  66.             {
  67.                 back[j] = org[i];
  68.                 j++;
  69.                 while(j > mid)
  70.                 {
  71.                     break;
  72.                 }
  73.             }
  74.             change(front,back,mid);
  75.           }
  76.      }
  77. }
  78. public static void change(char[] front,char[] back,int len)
  79.    {
  80.        int count =0;
  81.        for(int i =0;i<len;i++)
  82.        {
  83.            if(front[i] != back[i] )
  84.             {
  85.                 count += (back[i] - front[i]);
  86.             }
  87.         }
  88.      System.out.println(count);
  89.    }
  90. }
Success #stdin #stdout 0.07s 380224KB
comments (?)
stdin 
5
assfsdgrgregedhthtjh
efasfhnethiaoesdfgv
ehadfghsdfhmkfpg
wsertete
agdsjgtukgtulhgfd
stdout 
-23
4
13
-15
-4
https://ideone.com/QJqjmG
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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