Given an integer array nums and an integer k, return true if there are two distinct indices i and j in the array such that nums[i] == nums[j] and abs(i - j) <= 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
Constraints:
- 1 <= nums.length <= 105
- -109 <= nums[i] <= 109
- 0 <= k <= 105