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  1. import java.io.*;
  2. import java.lang.*;
  3.  
  4. /**
  5.  * snackdown1
  6.  */
  7. public class snackdown1 {
  8.  
  9.     public static void main(String[] args) {
  10.  
  11.         BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  12.         int R = Integer.parseInt(in.readLine());
  13.         System.out.println();
  14.         int k = 0;
  15.         char[] newArray;
  16.         for (int i=0; i<500; i++) {
  17.             newArray[i] = '0';
  18.         }
  19.  
  20.         while(R>0)
  21.         {
  22.             k = 0;
  23.             int L = Integer.parseInt(in.readLine());
  24.             System.out.println();
  25.             String str = in.readLine();
  26.             char[] charArray = str.toCharArray();
  27.             for (int i=0; i<L; i++)
  28.             {
  29.                 if (charArray[i]=='H' || charArray[i]=='T'){
  30.                     newArray[k] = charArray[i];
  31.                     k++;
  32.                 }
  33.             }
  34.             if(newArray[0] == 'T'){
  35.                 System.out.println("Invalid");
  36.             }
  37.             for (int i=1; i<newArray.length-1; i++){
  38.                 if(newArray[i] == 'H' && newArray[i+1] == 'T'){
  39.                     if(newArray[newArray.length-1] == 'T'){
  40.                         System.out.println("Valid");
  41.                     }
  42.                 }
  43.             }
  44.             R--;     
  45.         }
  46.     }
  47. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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6
18
..H..T...HTH....T.
3
...
10
H..H..T..T
2
HT
11
.T...H..H.T
7
H..T..H
compilation info 
Main.java:7: error: class snackdown1 is public, should be declared in a file named snackdown1.java
public class snackdown1 {
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/3toucy
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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