Created
April 22, 2020 14:58
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Given an array of integers, find if the array contains any duplicates. | |
Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct. | |
Example 1: | |
Input: [1,2,3,1] | |
Output: true | |
Example 2: | |
Input: [1,2,3,4] | |
Output: false | |
Example 3: | |
Input: [1,1,1,3,3,4,3,2,4,2] | |
Output: true | |
func containsDuplicate(_ nums: [Int]) -> Bool { | |
} |
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