[gcj] Solution giving WA for test cases Nesting Depth

[anonymous]

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Collections;

class Solution
{
    public static void main(String[] args) throws NumberFormatException, 
IOException
    {
        BufferedReader br = new BufferedReader(new 
InputStreamReader(System.in));
        int t = Integer.parseInt(br.readLine());
        for (int tt = 0; tt < t; tt++)
        {
            String s = br.readLine();
            int n = s.length();
            int brac=0;
            StringBuilder sb = new StringBuilder();
            for(int i=0;i<n;i++)
            {
                int val = s.charAt(i)-48;
                if(val==brac)
                {
                    sb.append(s.charAt(i));
                }
                else if(val>brac)
                {
                    int diff = val-brac;
                    sb.append(generateOpenBraces(diff)).append(s.charAt(i));
                    brac = brac+diff;
                }
                else
                {
                    int diff = brac-val;
                    
sb.append(generateCloseBraces(diff)).append(s.charAt(i));
                    brac=brac-diff;
                }
            }
            if(brac>0) 
            {
                sb.append(generateCloseBraces(brac));
            }
            System.out.println("Case #"+ tt + ": "+sb.toString());

        }
        System.exit(0);
    }

    public static String generateOpenBraces(int n)
    {
         return String.join("", Collections.nCopies(n, "("));
    }
    public static String generateCloseBraces(int n)
    {
         return String.join("", Collections.nCopies(n, ")"));
    }

}

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