Discount, but never below the floor
Sales can discount freely, except that a contract sets a price the item may never go under.
- Apply the percentage, then lift the result back up to the floor if it went under.
- A floor above the list price wins — the item simply sells at the floor.
- A percentage outside 1 to 100 means no discount at all.
discount_with_floor(price: int, percent: int, floor_price: int) → int
Where you start
def discount_with_floor(price: int, percent: int, floor_price: int) -> int:
Worked examples
| Call | Result |
|---|---|
discount_with_floor(1000, 20, 500) | 800 |
discount_with_floor(1000, 70, 500) | 500 |
discount_with_floor(1000, 20, 1200) | 1200 |
discount_with_floor(1000, 0, 500) | 1000 |
Hint
Two steps, in order: discount, then clamp.
Reference solution in Python
def discount_with_floor(price: int, percent: int, floor_price: int) -> int:
cut = price if percent < 1 or percent > 100 else price - price * percent // 100
return max(cut, floor_price)