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  1. // www.hackerearth.com/submission/8387337/
  2.  
  3. import java.util.*;
  4. class javaFile{
  5.     private static final char L = '(';
  6.     private static final char R = ')';
  7.     private static int l = 0;
  8.     private static int index = 0;
  9.     private static String s = "";
  10.  
  11.     public static void main(String args[]){
  12.         Scanner sc = new Scanner(System.in);
  13.         Stack<Character> st = new Stack<>();
  14.         s = sc.next();
  15.         int n = sc.nextInt();
  16.         l = s.length();
  17.         int count = 0,i=0;
  18.             if(n==2){
  19.                 for(i = 0;i<l;i++)
  20.                 {
  21.                     if(s.charAt(i)==L)
  22.                     {
  23.                         if(st.isEmpty())
  24.                         {
  25.                             count=0;
  26.                         }
  27.                         st.push(L);
  28.                         count++;
  29.                     }
  30.                     else if(s.charAt(i)==R)
  31.                     {
  32.                         st.pop();
  33.                     }
  34.                 }
  35.             }
  36.             else if(n==1)
  37.             {
  38.                 for(i = l-1;i>=0;i--)
  39.                 {
  40.                     if(s.charAt(i)==R)
  41.                     {
  42.                         if(s.isEmpty())
  43.                         {
  44.                             count=0;
  45.                         }
  46.                         st.push(R);
  47.                         count++;
  48.                     }
  49.                     else if(s.charAt(i)==L)
  50.                     {
  51.                         st.pop();
  52.                     }
  53.                 }
  54.             }
  55.             System.out.println(count);
  56.     }
  57. }
Success #stdin #stdout 0.09s 2841600KB
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https://ideone.com/AU2wEQ
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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