<ul><li>The goal of the problem is to find the maximum value in every contiguous subarray (or “window”) of size k within the input array nums.</li><li>This brute force algorithm iterates through all possible starting indices of the sliding window and calculates the maximum value for each window.</li><li>An efficient solution using a deque (double-ended queue) is provided to improve the time complexity to O(n) by avoiding redundant comparisons.</li><li>By leveraging the deque, the algorithm ensures that the maximum value for each window is computed in constant time, making it well-suited for large input arrays.</li></ul>

Leetcode 239 | Sliding Window Maximum in C++ | Brute Force | Deque | Optimized Cpp Solution

Discover more