Compute sum of longest positive subarray
Company: Microsoft
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: Medium
Interview Round: Technical Screen
Given an integer array that may contain positive and negative numbers, find the sum of the longest contiguous subarray consisting only of positive numbers. If multiple such subarrays share the maximum length, return the maximum sum among them. If the array contains no positive numbers, return 0. Explain the algorithm and its time and space complexity, and provide code in a language of your choice.
Quick Answer: This question evaluates skills in array manipulation, sequence detection, and quantitative analysis of runtime and memory while handling positive/negative integer edge cases.