Leaves - Sabrina #31
Open
Leaves - Sabrina #31
Conversation
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
CheezItMan
reviewed
Nov 20, 2019
lib/super_digit.rb
Outdated
| def super_digit(n) | ||
|
|
||
| puts "super_digit("+n.to_s+")" |
There was a problem hiding this comment.
I suggest leaving these out when you submit an answer.
Suggested change
| puts "super_digit("+n.to_s+")" |
lib/super_digit.rb
Outdated
| else | ||
| sum = 0 | ||
| while ((n / 10.0) > 0) | ||
| puts " while" |
| return new_solution | ||
| end | ||
|
|
||
| solutions = [last_solution, new_solution] |
| # Time Complexity - O(n) | ||
| # because the while loop to create the concatenated number | ||
| # and the while loop adding the digits of the number are not nested. | ||
| # Space Complexity - O(log k * n) | ||
| def refined_super_digit(n, k) |
There was a problem hiding this comment.
This is the brute-force solution here. Can you think of a better way to do this with dynamic programming?
| # Time Complexity - O(n) | ||
| # Space Complexity - O(n) | ||
| # you only keep the last two solutions, so the solutions array does not grow, | ||
| # but you're still effectiving the stack by adding recursive calls | ||
| # Hint, you may want a recursive helper method | ||
| def fibonacci(n) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
No description provided.