Leetcode Problem 941. Valid Mountain Array

941. Valid Mountain Array

Leetcode Solutions

One Pass Approach to Validate Mountain Array

  1. Check if the array length is less than 3, return false if it is.
  2. Initialize an index variable i to 0.
  3. Increment i until arr[i] is no longer less than arr[i + 1] or i is equal to arr.length - 1.
  4. If i is equal to 0 or i is equal to arr.length - 1, return false.
  5. Continue incrementing i while arr[i] is greater than arr[i + 1].
  6. If i reaches arr.length - 1, return true, indicating that a valid mountain has been traversed.
  7. If the loop ends before i reaches arr.length - 1, return false, indicating that the array is not a valid mountain array.
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Two Pointer Approach to Validate Mountain Array

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