1752.js

/** ------------------------------------------------------------------------------
 * 
 * 1752. Check if Array Is Sorted and Rotated
 * Topics: Array
 * https://leetcode.com/problems/check-if-array-is-sorted-and-rotated/description/
 * 
 ------------------------------------------------------------------------------ */
/**
 * @param {number[]} nums
 * @return {boolean}
 */
var check = function (nums) {
  let count = 0
  let n = nums.length

  for (let i = 0; i < n; i++) {
    if (nums[i] > nums[(i + 1) % n]) {
      count++
    }
    if (count > 1) return false
  }

  return true
}

console.log(check([3, 4, 5, 1, 2]))
console.log(check([5, 5, 6, 6, 6, 9, 1, 2]))