문제

출처 : https://programmers.co.kr/learn/courses/30/lessons/68644

풀이

function solution(numbers) {
  const arr = [];
  numbers.map((el, index) => {
    for (let i = 0; i < numbers.length; i++) {
      if (index === i) {
        return;
      } else {
        arr.push(el + numbers[i]);
      }
    }
  });

  const ans = [...new Set(arr)];

  return ans.sort((a, b) => a - b);
}