프로그래머스 LV.0 홀짝 구분하기

프로그래머스 LV.0 홀짝 구분하기

https://school.programmers.co.kr/learn/courses/30/lessons/181944

프로그래머스

 

1. 문제 명

홀짝 구분하기

2. 문제 설명

자연수 n이 입력으로 주어졌을 때 만약 n이 짝수이면 "n is even"을, 홀수이면 "n is odd"를 출력하는 코드를 작성해 보세요.

3. 제한 사항

1 ≤ n ≤ 1,000

4. 예시

입력 #1

100

출력 #1

100 is even

입력 #2

1

출력 #2

1 is odd

 

5. 기본 제공 코드

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

let input = [];

rl.on('line', function (line) {
    input = line.split(' ');
}).on('close', function () {
    n = Number(input[0]);
});

6. 제출한 내 답

const readline = require("readline");
const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
});

let input = [];

rl.on("line", function (line) {
  input = line.split(" ");
}).on("close", function () {
  n = Number(input[0]);
  if (n % 2 === 0) {
    console.log(`${n} is even`);
  } else {
    console.log(`${n} is odd`);
  }
});

 

6-2. VSC에 작성한 내용

const readline = require("readline");
const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
});

let input = [];

rl.on("line", function (line) {
  input = line.split(" ");
}).on("close", function () {
  n = Number(input[0]);
  if (n % 2 === 0) {
    console.log(`${n} is even`);
  } else {
    console.log(`${n} is odd`);
  }
});

7. 특이사항

없음

8. 다른 사람이 작성한 답

8-1. 삼항연산자

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
}).on('line', function (line) {
    const result = Number(line) % 2 ? 'odd' : 'even'
    console.log(line, 'is', result)
})

 

8-2. 삼항연산자 2

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

let input = [];

rl.on('line', function (line) {
    input = line.split(' ');
}).on('close', function () {
    n = Number(input[0]);
    console.log(n%2===0? `${n} is even`:`${n} is odd`)
});

 

8-3. 삼항연산자 3

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

let input = [];

rl.on('line', function (line) {
    input = line.split(' ');
}).on('close', function () {
    n = Number(input[0]);
    let str = n;
    str+= (n%2===0) ? " is even" : " is odd";
    console.log(str);
});