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Subarray Signal

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain
Python
Difficulty
medium
Seniority
mid

Problem

Our financial analytics engine needs to find the most profitable contiguous trading window. Write a function that takes a list of daily P&L values (possibly negative) and returns the maximum sum achievable by any contiguous subarray of at least one element.

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