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Algorithmic Problem Under Time
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Algorithmic Problem Under Time

MediumPython

Problem

Something to do with algorithm.

Implement longest_consecutive(nums), which returns the length of the longest sequence of consecutive integers in an unsorted list. The sequence values must increase by exactly one, and duplicate values count only once.

Input and Output

nums is a list of integers. Return an integer representing the longest consecutive sequence length.

Constraints

  • 0 <= len(nums) <= 10^4
  • -10^9 <= nums[i] <= 10^9
  • The input is not necessarily sorted
  • Duplicate values may appear

Function Signature

def longest_consecutive(nums):
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