Skip to content

Update main.py #14

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
visz11 wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Update main.py #14

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion main.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ def nth_fibonacci_util(n, memo):

# Base case: if n is 0 or 1, return n
if n <= 1:
return n
return m
Copy link

@gemini-code-assist gemini-code-assist bot Dec 11, 2025

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

critical

This line introduces a NameError because the variable m is not defined within the function's scope. The base case for the Fibonacci sequence is that for n <= 1, the function should return n. The original code was correct.

Suggested change
return m
return n

Copy link

@codeant-ai codeant-ai bot Dec 11, 2025

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggestion: In the memoized Fibonacci utility, the base case returns an undefined variable, which will raise a NameError at runtime the first time the base case is hit, and also fails to return the correct Fibonacci value for 0 or 1. [possible bug]

Severity Level: Critical 🚨

Suggested change
return m
return n
Why it matters? ⭐

The PR's current file state shows nth_fibonacci_util has the base-case "return m" (line 21 in the new hunk). "m" is not defined anywhere in that scope — calling nth_fibonacci_util(0, memo) or nth_fibonacci_util(1, memo) will raise a NameError and also return the wrong value. Replacing it with "return n" fixes the runtime bug and returns the correct Fibonacci value for 0 and 1. This is a real bug, not a cosmetic change.

Prompt for AI Agent 🤖 
This is a comment left during a code review.

**Path:** main.py
**Line:** 21:21
**Comment:**
	*Possible Bug: In the memoized Fibonacci utility, the base case returns an undefined variable, which will raise a NameError at runtime the first time the base case is hit, and also fails to return the correct Fibonacci value for 0 or 1.

Validate the correctness of the flagged issue. If correct, How can I resolve this? If you propose a fix, implement it and please make it concise.

Copy link

@coderabbitai coderabbitai bot Dec 11, 2025

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

⚠️ Potential issue | 🔴 Critical

Critical: Undefined variable causes NameError.

The return statement references an undefined variable m, which will cause a NameError at runtime when the base case is reached (n ≤ 1). This completely breaks the memoized Fibonacci implementation.

Apply this diff to fix the issue:

-        return m
+        return n
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
return m
return n
🧰 Tools
🪛 Ruff (0.14.8)

21-21: Undefined name m

(F821)

🤖 Prompt for AI Agents 
In main.py around line 21, the base-case return uses an undefined variable `m`
causing a NameError; replace `return m` with `return n` so the function returns
the correct Fibonacci value for n ≤ 1 and preserves the memoized implementation.


# Check if the result is already in the memo table
if memo[n] != -1:
Expand Down