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Optimizing a Legacy Code Path
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Optimizing a Legacy Code Path

EasyPython

Problem

Describe an instance where you optimized a legacy code path for better performance.

For the coding portion, implement the optimized equivalent: given a list of values, return a new list containing each value once, preserving its first-occurrence order. Use deduplicate(values); inputs and outputs are lists of integers. For example, [4, 2, 4, 1, 2] returns [4, 2, 1], and [] returns []. The input length is at most 10^4.

Constraints

  • 0 <= len(values) <= 10^4
  • -10^9 <= values[i] <= 10^9
  • Return a new list and preserve first-occurrence order

Function Signature

def deduplicate(values):
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