[Python] Coding Interview Patterns: Unpublished Lessons/

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Solution: Contains Duplicate

Solution: Contains Duplicate

Let's solve the Contains Duplicate problem using the Knowing What To Track pattern.

We'll cover the following...

Statement

For a given array of integers, nums, return TRUE if it contains duplicates. Otherwise, return FALSE.

Constraints:

  • 1≤1 \leq nums.length ≤105\leq 10^5

  • −109≤-10^9 \leq ...