Node.js) 백준 11655번 : ROT13

https://www.acmicpc.net/problem/11655

11655번: ROT13

 

 

 

습관처럼 trim 해서 게속 틀렸음;;

const fs = require('fs');
const input = fs.readFileSync("./dev/stdin").toString();

const answer = [];
for (let i = 0; i < input.length; i++) {
  const ascii = input.charCodeAt(i)
  let char;
  if (ascii >= 65 && ascii <= 90) {
    char = ascii > 77 ? String.fromCharCode(ascii - 26 + 13) : String.fromCharCode(ascii + 13)

  } else if (ascii >= 97 && ascii <= 122) {
    char = ascii > 109 ? String.fromCharCode(ascii - 26 + 13) : String.fromCharCode(ascii + 13)
  } else if (ascii == 32 || (ascii >= 48 && ascii <= 57)) {
    char = input[i]
  }
  answer.push(char);
}

console.log(answer.join(''))