Order Pipeline

Challenge on lesson: Checkpoint: Enums & Models

CHALLENGE

Difficulty: beginner+25 XP

Given the Order model in scope, implement Order next_status(Order o) advancing PENDING -> SHIPPED -> DELIVERED (DELIVERED stays), int count_status(const Order *os, int n, Order s) counting matches, and int shipped_revenue(const Order *os, int n) summing total_cents of SHIPPED orders.

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