3. 2884번 알람시계 ( java )

package com.example;

import java.util.Scanner;

public class training3 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int a = scanner.nextInt();
        int b = scanner.nextInt();

        if( b < 45){
            a = a-1;
            b = 60 - (45 - b);

            if(a < 0){
                a = 23;
            }           
            System.out.println(a + "시" + b + "분");
        }
        else {
            b = b-45;
            System.out.println(a + "시" + b + "분");
        }
        scanner.close();
    }
}