Optimize Code Performance | Dataford Interview Questions

How would you optimize this specific piece of code for performance?

You are given a Python function that processes a list of integers and must return the optimized version of the same behavior. Keep the output identical, but improve runtime and, when possible, memory usage.

Function contract

def optimize_code(nums):

nums is a list of integers.
Return the optimized result produced by the original code.

Requirements

Preserve the exact behavior of the original code.
Identify the main performance bottleneck.
Implement a faster approach in Python.
Explain the time and space complexity of your solution.

Constraints

1 <= len(nums) <= 10^5
-10^9 <= nums[i] <= 10^9
The optimized solution should preserve the original output exactly

Function Signature

def optimize_code(nums):

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Problem