Easy
Quiz
#217 Contains Duplicate
APPROACH
Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.
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What is the optimal approach for this problem?
#217 Contains Duplicate
APPROACH
Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.
What is the optimal approach for this problem?