Sep 2, 2025 · Sliding Window Technique is a method used to solve problems that involve subarray or substring or window. Instead of repeatedly iterating over the same elements, the sliding window …

Jan 2, 2022 · If you claim that "this type of algorithm is considered O (n)", then you didn't correctly implement this algorithm. Here is a O (n) solution for this problem, written in JavaScript (source):

Oct 11, 2025 · It can turn what might be a cumbersome O (n²) or O (n³) brute-force solution into a sleek O (n) algorithm. Knowing when to use the sliding window technique is key. Keep an eye out for...

May 12, 2025 · Sliding window: Only one pass through the array is needed, giving O (n) time complexity. The sliding window algorithm follows these general steps: We typically use two pointers to define the …

Master fixed-size and variable-size window patterns. The Sliding Window technique transforms O(N 2) brute force solutions into efficient O(N) algorithms by maintaining a "window" of elements and sliding …

Sep 5, 2025 · The Sliding Window Algorithm transforms brute-force O(n²) solutions into efficient O(n) solutions. It works especially well for problems involving subarrays and substrings.

Sep 17, 2025 · Learn the sliding window algorithm with Java examples. Optimize O (n²) problems to O (n) for arrays & strings, and ace your coding interview.

Time Complexity of Sliding Window technique: O (N) where N is the size of the given input. This is because none of the two pointers go backward at any point of time.

Jun 18, 2025 · Summary: The sliding window algorithm is a technique that reduces nested loops into a single loop, optimizing time complexity from O (n²) to O (n). It’s used on arrays, lists or strings to find …

Jan 13, 2026 · In this blog, we’ll dive deep into the sliding window algorithm: how it works, its types, key concepts, practical examples, and when to use it. By the end, you’ll have a clear understanding of …