Open
Conversation
Constant Name and Value Changed const int NoTriangle = 0; → const int NotTriangle = -1; Triangle Check Logic Modified Old: n = sqrt(2 * x); → Checks if n(n+1)/2 == x New: Solves using n = (-1 + sqrt(1 + 8x)) / 2 with full discriminant check Return Value on Invalid Triangle Old: Returns NoTriangle (0) if not a triangle New: Returns NotTriangle (-1) if not a triangle Condition in main() Updated Old: if (getTriangle(sum) != NoTriangle) New: if (getTriangle(sum) != NotTriangle) Mathematical Accuracy Old Code: Uses approximation (sqrt) New Code: Uses exact formula with perfect square and integer check
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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
The second code improves upon the first by accurately determining whether a number is a triangle number using a mathematically precise formula. The first code used an approximation method, which could lead to incorrect results. Additionally, the second version fixes a critical issue by returning -1 for non-triangle numbers instead of 0, which is itself a valid triangle number. These changes ensure correct output for all test cases.