Submission #51333741

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import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String inputStr = scanner.nextLine();
        
        Set<String> set = new HashSet<>();
        for(int i=0;i<inputStr.length();i++){
            
            for(int j=i+1;j<inputStr.length();j++){
                StringBuilder sb = new StringBuilder(inputStr);
                char a = inputStr.charAt(i);
                char b = inputStr.charAt(j);
                sb.setCharAt(i, b);
                sb.setCharAt(j, a);
                set.add(sb.toString());
            }
 
 
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import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String inputStr = scanner.nextLine();
        
        Set<String> set = new HashSet<>();
        for(int i=0;i<inputStr.length();i++){
            
            for(int j=i+1;j<inputStr.length();j++){
                StringBuilder sb = new StringBuilder(inputStr);
                char a = inputStr.charAt(i);
                char b = inputStr.charAt(j);
                sb.setCharAt(i, b);
                sb.setCharAt(j, a);
                set.add(sb.toString());

            }
        }

        System.out.println(set.size());
    }
}

Submission Info

Judge Result