#230Easy#49 in Airbnb's list· asked at 11 companies
Contains Duplicate II
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What we know
Example 1
Input: nums = [1,2,3,1], k = 3 Output: true
Example 2
Input: nums = [1,0,1,1], k = 1 Output: true
Example 3
Input: nums = [1,2,3,1,2,3], k = 2 Output: false
Constraints
- •
1 <= nums.length <= 10^5 - •
-10^9 <= nums[i] <= 10^9 - •
0 <= k <= 10^5