문제

내 코드

let fs = require("fs");
let input = fs
  .readFileSync("/dev/stdin")
  .toString()
  .trim()
  .split("\n")
  .map((num) => parseInt(num));

const N = Number(input.shift());
const sortedNumArr = input.sort((a, b) => Number(a) - Number(b));
const numMap = {};

for (let num of sortedNumArr) {
  if (numMap[num]) {
    numMap[num] += 1;
  } else {
    numMap[num] = 1;
  }
}

let hitMaxNum = Math.max.apply(null, Object.values(numMap));
let hitMaxNumArr = [];
let hitMaxNumResult = 0;

for (let numKey in numMap) {
  if (numMap[numKey] === hitMaxNum) {
    hitMaxNumArr.push(numKey);
  }
}

if (hitMaxNumArr.length > 1) {
  hitMaxNumArr = hitMaxNumArr.sort((a, b) => a - b);
  hitMaxNumResult = hitMaxNumArr[1];
} else {
  hitMaxNumResult = hitMaxNumArr[0];
}

const avg = Math.round(input.reduce((acc, num) => (acc += num), 0) / N);
const center = input[Math.floor(input.length / 2)];
const maxSubMin = sortedNumArr[sortedNumArr.length - 1] - sortedNumArr[0];

console.log(avg);
console.log(center);
console.log(hitMaxNumResult);
console.log(maxSubMin);

깃허브 링크

https://github.com/highjoon/JS_Algorithm/blob/master/BOJ/%EC%A0%95%EB%A0%AC/2108.js