[알고리즘] 로그인 성공? Java

 

public String solution(String[] id_pw, String[][] db) {
    int db_size = db.length;
    for (int i = 0; i < db_size; i++) {
      if (db[i][0].equals(id_pw[0])) {
        if(db[i][1].equals(id_pw[1])) {
          return "login";
        }
        return "wrong pw";
      }
    }
    return "fail";
  }