1
/**
2
 * @param {number[]} arr
3
 * @return {number[]}
4
 */
5
var arrayRankTransform = function (arr) {
6
  if (arr.length == 0) {
7
    return arr;
8
  }
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  let a = arr.map((num) => num);
10

11
  arr.sort((a, b) => a - b);
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  let map = new Map();
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  map.set(arr[0], 1);
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  for (let i = 1; i < arr.length; i++) {
15
    if (arr[i] == arr[i - 1]) {
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      continue;
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    } else {
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      map.set(arr[i], map.get(arr[i - 1]) + 1);
19
    }
20
  }
21

22
  let rank = a.map((num) => map.get(num));
23
  return rank;
24
};