愛有等差

[Ponchimeow]

Lidemy, OJ 愛有等差

function pc(str) {
  let tmp = str.split(' ');
  let arr = tmp.sort();
  let tolerance = arr[1] - arr[0];
  if (arr.length < 50001) {
    for (let i = 0; i < arr.length-1; i += 1) {
      let res = 0;
      if (-1000000001 < arr[i] < 1000000001) {
        if ((arr[i + 1] - arr[i]) !== tolerance) return 'No'
      }
    }
    return 'Yes'
  }
}