[백준] 1440 타임머신 - Brute Force / Java

• 문제 링크

1440번: 타임머신

 

• 풀이 코드

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        StringTokenizer st = new StringTokenizer(br.readLine(), ":");
        int[] arr = new int[3];
        for (int i = 0; i < 3; i++) arr[i] = Integer.parseInt(st.nextToken());

        int cnt = 0;
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                for (int k = 0; k < 3; k++) {
                    if (i == j || j == k || i == k) continue;
                    if (arr[i] > 0 && arr[i] < 13 && arr[j] < 60 && arr[k] < 60) cnt++;
                }
            }
        }

        bw.write(String.valueOf(cnt));
        bw.flush();
    }

}