Another Birthday Present!

#1


import java.util.Scanner;

class Solution {
public static void main(String args[]) {

  Scanner scn = new Scanner(System.in);
  int n=scn.nextInt();
  while(t-->0){

            String str = scn.next();

            char[] charray = str.toCharArray();
            Arrays.sort(charray);

            permutationNoDuplicates(new String(charray), "");
        }

        public static void permutationNoDuplicates(String ques, String ans) {

            if (ques.length() == 0) {
                System.out.println(ans);
                return;
            }

            for (int i = 0; i < ques.length(); i++) {

                char ch = ques.charAt(i);
                String roq = ques.substring(0, i) + ques.substring(i + 1);

                boolean flag = true;

                for (int j = i + 1; j < ques.length(); j++) {
                    if (ques.charAt(j) == ch) {
                        flag = false;
                    }
                }

                if (flag)
                    permutationNoDuplicates(roq, ans + ch);
            }

        }
    
}

}
help me

#2

@SanjeevKumarRay,
Is your doubt related to the codechef question or the question you have tagged? Can you please share a relevant problem statement to your code.

#3

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