Instacart Software Engineer Interview Experience — Library OA, Pricing, and Inventory Design

I translated this passage into Chinese as follows:

All the questions I received were exactly the same as those in another post.

0. OA: A full-stack CodeSignal repository test, with AI. A book/library management system.

1. Coding problem 1: The first problem was translating expressions (T1 = T4).

2. Coding problem 2: Calculate the total price of products in an array of strings, in the format sku|product name|quantity|unit price (cents). The follow-ups were to calculate prices after applying discounts. The discount types were pct and bxyf, for example a100|pct|20 or a100|bxyf|1|2. I remember that the last part asked me to sort all the products by shelf number and whether they were frozen.

3. System design: An inventory management system.

4. Behavioral interview:

Tell me about the most interesting project you have been responsible for.

Have you made a mistake involving deployment? What did you learn from fixing the problem?