Lesson·difficulty 2/5·~15 min
Compute an order total
Read the task → edit your code → Run to see the output → Run tests to check your answer.
Implement cart_total(items).
items is a list of records with integer price_paise >= 0 and quantity >= 0. Return the integer total in paise. An empty cart totals 0. Do not change the input.
Before coding, predict one result by hand. After the tests pass, explain your approach and add a boundary example of your own.
Tests
- Case 1
- Case 2
- Case 3
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