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Compiling brilliance
Did you know? An LRU cache is a HashMap + a doubly-linked list → O(1) get & put.
Compiling brilliance
Did you know? An LRU cache is a HashMap + a doubly-linked list → O(1) get & put.
Tag
4 articles tagged booking.
How a creator-session platform works inside: turning availability windows into bookable slots, the interval-overlap test that prevents double-booking, and the hold-pay-confirm flow.
A low-level design walkthrough of a car rental system: reservations against category capacity instead of specific cars, interval counting on the calendar, pickup-time assignment, and late-fee billing.
A low-level design walkthrough of an airline booking system: identity inventory where seat 12A is nobody's substitute, the PNR as hidden noun, and seat holds that expire by the lazy clock.
A low-level design walkthrough of a hotel management system: half-open date ranges, the one-line overlap formula, booking a room type while the hotel assigns the room — fully implemented.