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Balanced Brackets.java.txt
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Balanced Brackets.java.txt
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import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;
public class Solution {
// Complete the isBalanced function below.
static String isBalanced(String s) {
Stack<Character> stack=new Stack<Character>();
char ch,ch1;
for(int i=0;i<s.length();i++)
{
ch=s.charAt(i);
if(ch=='(' || ch=='{' || ch=='[')
{
System.out.println("psh= "+ch);
stack.push(ch);
}
else
{
if(stack.isEmpty())
{
return "NO";
}
ch1=stack.pop();
if((ch==')' && ch1!='(') || (ch=='}' && ch1!='{') || (ch==']' && ch1!='['))
{
return "NO";
}
}
}
if(stack.isEmpty())
{
return "YES";
}
return "NO";
}
private static final Scanner scanner = new Scanner(System.in);
public static void main(String[] args) throws IOException {
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
int t = scanner.nextInt();
scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
for (int tItr = 0; tItr < t; tItr++) {
String s = scanner.nextLine();
String result = isBalanced(s);
bufferedWriter.write(result);
bufferedWriter.newLine();
}
bufferedWriter.close();
scanner.close();
}
}