[백준] 10869번: 사칙연산(java, python)

https://www.acmicpc.net/problem/10869

10869번: 사칙연산

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🗒 풀이

java

1) BufferedReader 사용

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

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine(), " ");

        int a = Integer.parseInt(st.nextToken());
        int b = Integer.parseInt(st.nextToken());

        System.out.println(a + b);
        System.out.println(a - b);
        System.out.println(a * b);
        System.out.println(a / b);
        System.out.println(a % b);
    }
}

 

 

2) Scanner 사용

import java.util.Scanner;

public class Main2 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        sc.close();

        System.out.println(a + b);
        System.out.println(a - b);
        System.out.println(a * b);
        System.out.println(a / b);
        System.out.println(a % b);
    }
}

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python

a, b = map(int, input().split())
print(a + b)
print(a - b)
print(a * b)
print(a // b)
print(a % b)

이 때, 사칙연산자 // 을 써야함에 주의하자.

/ 과 // 둘 다 나눗셈 연산자이지만, / 는 float 형태로, //은 int 형태로 값을 반환한다.

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