Solution: Contains Duplicate II
Explore how to apply the sliding window technique to check for duplicate elements within a given index range in an array. This lesson teaches you to maintain a set to track elements within a moving window of size k, enabling you to identify duplicates efficiently with linear time complexity and controlled space usage.
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We'll cover the following...
Statement
You are given an integer array, nums, and an integer k. Determine whether two distinct indices, i and j, are in the array, such that nums[i] == nums[j] and the absolute difference between i and j is at most k. Return TRUE if such indices exist; otherwise, return FALSE.
Constraints:
nums.length...