Making Anagrams

• 문제 - https://www.hackerrank.com/challenges/ctci-making-anagrams/problem?h_l=interview&playlist_slugs%5B%5D=interview-preparation-kit&playlist_slugs%5B%5D=strings

Strings: Making Anagrams | HackerRank

• 풀이

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 makeAnagram function below.
    static int makeAnagram(String a, String b) {
        if (a.length() < b.length()) {
            String tmp = a;
            a = b;
            b = tmp;
        }

        char[] aArr = a.toCharArray();
        char[] bArr = b.toCharArray();

        for (int i = 0; i < a.length(); i++) {
            for (int j = 0; j < b.length(); j++) {
                if (aArr[i] == bArr[j]) {
                    aArr[i] = '.';
                    bArr[j] = '/';
                }
            }
        }

        int ret = 0;
        for (int i = 0; i < a.length(); i++) {
            if (aArr[i] != '.') {
                ret++;
            }
        }

        for (int i = 0; i < b.length(); i++) {
            if (bArr[i] != '/') {
                ret++;
            }
        }

        return ret;

    }

    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")));

        String a = scanner.nextLine();
        String b = scanner.nextLine();

        int res = makeAnagram(a, b);

        bufferedWriter.write(String.valueOf(res));
        bufferedWriter.newLine();

        bufferedWriter.close();
        scanner.close();
    }
}