Solution: Number of Valid Subarrays
Explore how to efficiently count non-empty contiguous subarrays where the first element is minimal using a monotonic increasing stack. Learn the step-by-step algorithm, understand amortized time complexity, and implement the solution in C# for optimized coding interview preparation.
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Statement
Given an integer array nums, count how many non-empty contiguous subarrays exist where the first element of each subarray is less than or equal to every other element within that subarray.
Note: A subarray is defined as a contiguous portion of an array.
Constraints:
nums.length...