Created
March 31, 2022 10:52
-
-
Save les-peters/3db77dc04adc85a4a0d16fee0e26c675 to your computer and use it in GitHub Desktop.
Contained Items
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| question = """ | |
| Given a string that represents items as asterisks (*) and compartment walls as pipes (|), | |
| a start index, and an end index, return the number of items in a closed compartment. | |
| Example: | |
| let str = '|**|*|*' | |
| > containedItems(str, 0, 5) | |
| > 2 | |
| > containedItems(str, 0, 6) | |
| > 3 | |
| > containedItems(str, 1, 7) | |
| > 1 | |
| Extra credit: What if you had multiple pairs of start and end indices? You can do it in O(n) time! | |
| """ | |
| import re | |
| def containedItems(s, start, end): | |
| b = len(re.sub(r'[^\*]', '', re.sub(r'\*+$', '', re.sub(r'^\*+', '', s[start:end])))) | |
| print(b) | |
| str = '|**|*|*' | |
| containedItems(str, 0, 5) | |
| containedItems(str, 0, 6) | |
| containedItems(str, 1, 7) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment