프로그래머스: 체육복 February 19, 2020

const lostGymSuit = (n: number, lost: number[], reserve: number[]): number => {
  const array: number[] = Array(n).fill(1);

  lost.forEach(l => {    if (reserve.includes(l)) {      reserve.splice(reserve.indexOf(l), 1);    } else {      array[l - 1] = 0;    }  });
  reserve.forEach(r => {
    if (array[r - 2] === 0) {
      array[r - 2] = 1;
    } else if (array[r - 1] === 0) {
      array[r - 1] = 1;
    } else if (array[r] === 0) {
      array[r] = 1;
    }
  });

  const result = array.reduce((acc, a) => acc + a);
  return result;
};