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Design a vending machine system that allows users to browse, select, and pay for multiple items in a single order either directly via the machine's console or through a mobile app, where app-based orders can be pre-booked, paid for remotely, and collected at the vending machine.
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Amazon
Design a Vending Machine System
Reported May 8, 2026 · 1 source report
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Source snapshot: Nov 12, 2026
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