ContainsDuplicateII.swift

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// Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the absolute difference between i and j is at most k.

// 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


class Solution {
    func containsNearbyDuplicate(_ nums: [Int], _ k: Int) -> Bool {
        
    }
}