Sliding Window pattern

Max Sum of Distinct Subarrays, Size K

Given an integer array and a length k, find the maximum sum among all contiguous subarrays of length k whose elements are all distinct. Watch it run step by step, then write your own pseudocode and get it checked by AI.

  • LeetCode 2461
  • Medium
  • 2 approaches

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Sliding WindowLeetCode 2461

Medium

From the first idea to the best one

  1. 01 Brute force · re-check every window O(n·K)O(K) space
  2. 02 Optimized · slide with freq map O(n)O(K) space
Each approach plays step by step, with its time and space.

What you will learn

  • How to read Max Sum of Distinct Subarrays, Size K and spot the sliding window pattern in it
  • Brute force · re-check every window: O(n·K) time, O(K) space
  • Optimized · slide with freq map: O(n) time, O(K) space
  • The pseudocode for each approach, its line lit as the animation runs
  • Practice: write your own pseudocode and get it checked

More Sliding Window

See Max Sum of Distinct Subarrays, Size K run, step by step

Sign in and this page opens on the animation, with all 8 Sliding Window problems beside it.

DSA comes with the all labs plan and every ChaiCode batch.