코드스쿼드_알고리즘_week1

baek_10757.js

const readline = require('readline');

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

const input = [];
rl.on('line', function (line) {
  input.push(line.split(' '));
  rl.close();
}).on('close', function () {
  const inputs = input.pop();
  const result = inputs.map((v) => v.split(''));
  const a = result[0].reverse();
  const b = result[1].reverse();

  let longNumber, shortNumber;
  longNumber = a.length > b.length ? a : b;
  shortNumber = a.length < b.length ? a : b;

  const tempAnswer = [];
  let carry = 0;
  let i = 0;
  //short length
  for (; i < shortNumber.length; i++) {
    let sum = Number(a[i]) + Number(b[i]) + carry;
    if (sum >= 10) {
      sum = sum - 10;
      carry = 1;
    } else carry = 0;
    tempAnswer.push(sum);
  }

  // rest numbers + answer
  for (; i < longNumber.length; i++) {
    let sum = Number(longNumber[i]) + carry;
    if (sum >= 10) {
      sum = sum - 10;
      carry = 1;
    } else carry = 0;
    tempAnswer.push(sum);
  }

  if (carry) tempAnswer.push(1);

  const answer = tempAnswer.reverse().join('');
  console.log(answer);
  process.exit();
});

baekjoon_1009.js

const readline = require('readline');

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

let round = 0;
const arr = [];
rl.on('line', function (line) {
  if (!round) {
    round = +line;
  } else {
    arr.push(line.split(' '));
    if (arr.length === round) {
      rl.close();
    }
  }
}).on('close', function () {
  const newArr = arr.map((v) => {
    const a = v[0];
    const b = v[1];
    let result = a;
    for (let i = 1; i < b; i++) {
      result = (result * a) % 10;
    }
    return result;
  });

  for (let i = 0; i < round; i++) {
    newArr[i] === 0 ? console.log(10) : console.log(newArr[i]);
  }
  process.exit();
});

baekjoon_1076.js

const readline = require('readline');

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

const color = [
  'black',
  'brown',
  'red',
  'orange',
  'yellow',
  'green',
  'blue',
  'violet',
  'grey',
  'white',
];
const input = [];
rl.on('line', function (line) {
  input.push(line);
  if (input.length === 3) rl.close();
}).on('close', function () {
  const num = 10;
  const result = input.map((v) => {
    for (let i = 0; i < color.length; i++) {
      if (v === color[i]) return color.indexOf(color[i]);
    }
  });

  function answer(result) {
    result[0] = result[0] * num;
    result[2] = result[2] === 0 ? 1 : 10 ** result[2];
    return (result[0] + result[1]) * result[2];
  }

  console.log(answer(result));

  process.exit();
});