Time - Alex #25
Open
Time - Alex #25
Conversation
This file contains hidden or 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
CheezItMan
reviewed
Sep 14, 2020
CheezItMan
left a comment
CheezItMan
left a comment
There was a problem hiding this comment.
Nice work Alex, you hit the learning goals here. Well done.
Comment on lines
+3
to
5
| # Time Complexity: O(n) | ||
| # Space Complexity: O(n) | ||
| def balanced(string) |
| } | ||
|
|
||
| string.each_char do |char| | ||
| if twosomes.values.include?(char) |
There was a problem hiding this comment.
Note about .include? is an O(n) operation and unnecessary in a hash.
Suggested change
| if twosomes.values.include?(char) | |
| if twosomes[char] |
| @back = -1 | ||
| end | ||
|
|
||
| def enqueue(element) |
| end | ||
| end | ||
|
|
||
| def dequeue |
Comment on lines
40
to
+42
| def front | ||
| raise NotImplementedError, "Not yet implemented" | ||
| return @queue[@front] | ||
| end |
There was a problem hiding this comment.
You should also check to see if the Queue is empty
Comment on lines
+45
to
53
| def get_queue_contents() | ||
| if @queue.empty? | ||
| return [] | ||
| elsif @front > @back | ||
| return @queue[@front...@size] + @queue[0...@back] | ||
| else | ||
| return @queue[@front...@back] | ||
| end | ||
| end |
| @@ -1,22 +1,25 @@ | |||
| class Stack | |||
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Stacks and Queues
Thanks for doing some brain yoga. You are now submitting this assignment!
Comprehension Questions
OPTIONAL JobSimulation