DSA Level 2 Data Structures Stacks Number Of Valid Subarrays

Number Of Valid Subarrays

hard

Given an array nums of integers, return the number of non-empty continuous subarrays that satisfy the following condition:
The leftmost element of the subarray is not larger than other elements in the subarray.

Input Format

Input is managed for you

Output Format

Output is managed for you

Constraints

1. 1 &lt;= nums.length &lt;= 50000
2. 0 &lt;= nums[i] &lt;= 100000

Notice

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Example

Input

Output

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Basic Calculator Ii

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