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Count Complete Subarrays in an Array

You are given an array nums consisting of positive integers.

You are given an array nums consisting of positive integers.

We call a subarray of an array complete if the following condition is satisfied:

Return the number of complete subarrays.

A subarray is a contiguous non-empty part of an array.

Count Complete Subarrays in an Array diagram

Example 1

Input: nums = [1,3,1,2,2]

Output: 4

Explanation: The complete subarrays are the following: [1,3,1,2], [1,3,1,2,2], [3,1,2] and [3,1,2,2].

Example 2

Input: nums = [5,5,5,5]

Output: 10

Explanation: The array consists only of the integer 5, so any subarray is complete. The number of subarrays that we can choose is 10.

Constraints

  • 1 <= nums.length <= 1000
  • 1 <= nums[i] <= 2000

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