Minjeong Choi

Minjeong Choi

prolearner🥳

코드업 기초 100제 (자바): 1028-1046

4 minute read

모든 문제는 코드업에서 참고했습니다.

기초-데이터형

1028 : 정수 1개 입력받아 그대로 출력2

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        long input = scanner.nextLong();
        System.out.println(input);
        scanner.close();
    }
}

1029 : 실수 1개 입력받아 그대로 출력2

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double input = scanner.nextDouble();
        System.out.printf("%.11f", input);
        scanner.close();
    }
}

1030 : 정수 1개 입력받아 그대로 출력3

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        long input = scanner.nextLong();
        System.out.println(input);
        scanner.close();
    }
}

기초-출력변환

1031 : 10진 정수 1개 입력받아 8진수로 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        System.out.printf("%o",input);
        scanner.close();
    }
}

or

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        String octalNum = Integer.toOctalString(input);
        System.out.println(octalNum);
        scanner.close();
    }
}

1032 : 10진 정수 입력받아 16진수로 출력1

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        System.out.printf("%x",input);
        scanner.close();
    }
}

or

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        String hexNum = Integer.toHexString(input);
        System.out.println(hexNum);
        scanner.close();
    }
}

1032 : 10진 정수 입력받아 16진수로 출력2

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        System.out.printf("%X",input);
        scanner.close();
    }
}

or

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        String hexNum = Integer.toHexString(input).toUpperCase();
        System.out.println(hexNum);
        scanner.close();
    }
}

1033 : 10진 정수 입력받아 16진수로 출력2

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        String hexNum = Integer.toHexString(input).toUpperCase();
        System.out.println(hexNum);
        scanner.close();
    }
}

or

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        String hexNum = String.format("%X", input);
        System.out.println(hexNum);
        scanner.close();
    }
}

1034 : 8진 정수 1개 입력받아 10진수로 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.next();
        int inputDecimal = Integer.parseInt(input, 8);
        System.out.println(inputDecimal);
        scanner.close();
    }
}

1035 : 16진 정수 1개 입력받아 8진수로 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String inputHex = scanner.next();
        int inputDecimal = Integer.parseInt(inputHex, 16);
        String inputOctal = Integer.toOctalString(inputDecimal);
        System.out.println(inputOctal);
        scanner.close();
    }
}

or

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int inputDecimal = scanner.nextInt(16);
        String inputOctal = Integer.toOctalString(inputDecimal);
        System.out.println(inputOctal);
        scanner.close();
    }
}

1036 : 영문자 1개 입력받아 10진수로 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        char input = scanner.next().charAt(0);
        System.out.println((int)input);
        scanner.close();
    }
}

1037 : 정수 입력받아 아스키 문자로 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        System.out.println((char)input);
        scanner.close();
    }
}

기초-산술연산

1038 : 정수 2개 입력받아 합 출력1

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        String[] inputArray = input.split(" ");

        int inputFirst = Integer.parseInt(inputArray[0]);
        int inputSecond = Integer.parseInt(inputArray[1]);
        long sum = (long)inputFirst + inputSecond;

        System.out.println(sum);
        scanner.close();
    }
}

1039 : 정수 2개 입력받아 합 출력2

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        String[] inputArray = input.split(" ");

        long inputFirst = Long.parseLong(inputArray[0]);
        long inputSecond = Long.parseLong(inputArray[1]);
        long sum = inputFirst + inputSecond;
        System.out.println(sum);
        scanner.close();
    }
}

1040 : 정수 1개 입력받아 부호 바꿔 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int input = scanner.nextInt();
        System.out.println((-1)*input);
        scanner.close();
    }
}

1041 : 문자 1개 입력받아 다음 문자 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        char input = scanner.next().charAt(0);
        char nextChar = (char)(input+1);
        System.out.println(nextChar);
        scanner.close();
    }
}

1042 : 정수 2개 입력받아 나눈 몫 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        String[] inputArray = input.split(" ");
        int inputFirst = Integer.parseInt(inputArray[0]);
        int inputSecond = Integer.parseInt(inputArray[1]);
        System.out.println(inputFirst/inputSecond);
        scanner.close();
    }
}

1043 : 정수 2개 입력받아 나눈 나머지 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        String[] inputArray = input.split(" ");
        int inputFirst = Integer.parseInt(inputArray[0]);
        int inputSecond = Integer.parseInt(inputArray[1]);
        System.out.println(inputFirst%inputSecond);
        scanner.close();
    }
}

1044 : 정수 1개 입력받아 1 더해 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        long input = scanner.nextLong();
        System.out.println(input+1);
        scanner.close();
    }
}

1045 : 정수 2개 입력받아 자동 계산

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String[] inputArray = scanner.nextLine().split(" ");
        int inputFirst = Integer.parseInt(inputArray[0]);
        int inputSecond = Integer.parseInt(inputArray[1]);

        long sum = (long)inputFirst + inputSecond;
        int diff = inputFirst - inputSecond;
        long product = (long)inputFirst * inputSecond;
        int quotient = inputFirst/inputSecond;
        int remainder = inputFirst % inputSecond;
        double division = (double)inputFirst/inputSecond;
        System.out.printf("%d\n%d\n%d\n%d\n%d\n%.2f\n", sum, diff, product, quotient, remainder, division);
        scanner.close();
    }
}

1046 : 정수 3개 입력받아 합과 평균 출력

import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String[] inputArray = scanner.nextLine().split(" ");
        int inputFirst = Integer.parseInt(inputArray[0]);
        int inputSecond = Integer.parseInt(inputArray[1]);
        int inputThird = Integer.parseInt(inputArray[2]);

        long sum = (long)inputFirst + inputSecond + inputThird;
        double avg = sum/3;
        System.out.printf("%d\n%.1f\n", sum, avg);
        scanner.close();
    }
}

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