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var getSumAbsoluteDifferences = function (nums) {
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  const N = nums.length;
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  const ans = new Array(N);
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  ans[0] = nums.reduce((a, b) => a + b, 0) - N * nums[0];
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  for (let i = 1; i < N; i++)
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    ans[i] =
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      ans[i - 1] +
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      (nums[i] - nums[i - 1]) * i -
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      (nums[i] - nums[i - 1]) * (N - i);
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  return ans;
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};