Minimum Average of Smallest and Largest Elements

export function minimumAverage(nums: number[]): number {
  const n = nums.length;
  nums.sort((a, b) => a - b);
 
  let answer = Number.MAX_SAFE_INTEGER;
  let [left, right] = [0, n - 1];
  while (left < right) {
    answer = Math.min(answer, (nums[left] + nums[right]) / 2);
    left += 1;
    right -= 1;
  }
  return answer;
}