Object-Oriented Programming · Uber · Medium
Requirements Build a last-click attribution tracker that accepts two kinds of events: click(timestamp, userId, campaignId) conversion(timestamp, userId) When a conversion occurs, associate it with the latest click from that same user that satisfies both conditions: The click happened no later than the conversion: click_time = conversion_time - conversion_window_seconds. If no click meets both conditions, leave the conversion unattributed. Implement the following API: Use…
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