[java] 백준 단계별로 풀어보기 2단계

1단계 1330번 두 수 비교하기

import java.util.Scanner;

class Main{
    public static void main(String []args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        
        if(a > b)
            System.out.println(">");
        else if(a == b)
            System.out.println("==");
        else
            System.out.println("<");
    }
}

2단계 9498번 시험 성적

import java.util.Scanner;

class Main {
    public static void main(String []args){
        Scanner sc = new Scanner(System.in);
        
        int score = sc.nextInt();
        
        if(90 <= score && score <= 100)
            System.out.println("A");
        else if(80 <= score && score < 90)
            System.out.println("B");
        else if(70 <= score && score < 80)
            System.out.println("C");
        else if(60 <= score && score < 70)
            System.out.println("D");
        else
            System.out.println("F");
    }
}

3단계 2753번 윤년

import java.util.Scanner;

class Main{
    public static void main(String []args){
        Scanner sc = new Scanner(System.in);
        
        int year = sc.nextInt();
        if(year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
            System.out.println("1");
        else
            System.out.println("0");
    }
}

4단계 14681번 사분면 고르기

import java.util.Scanner;

class Main{
    public static void main(String []args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        
        if(a>0 && b>0)
            System.out.println("1");
        else if(a<0 && b>0)
            System.out.println("2");
        else if(a<0 && b<0)
            System.out.println("3");
        else
            System.out.println("4");
    }
}

5단계 2884번 알람 시계

import java.util.Scanner;

class Main{
    public static void main(String []args){
        Scanner sc = new Scanner(System.in);
        int hour = sc.nextInt();
        int minute = sc.nextInt();
        int a = minute - 45;
                
        if(a < 0){
            if(hour==0){
                hour=23;
                a = minute + 15;
                System.out.println(hour+" "+a);    
            }else{
                hour = hour - 1;
                a = minute + 15;
                System.out.println(hour+" "+a);    
            }
        }else{
            System.out.println(hour+" "+a);
        }
    }
}