Search⌘ K
AI Features

Solution: Contains Duplicate II

Explore how to apply the sliding window technique to determine if an array contains duplicates within a specified index range k. This lesson guides you through a space and time efficient approach using a set to track elements, helping you understand how to implement and optimize the solution in C# for coding interviews.

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:

  • ...