Nov 20, 2025 · The only sliding window guide you'll ever need. Templates in 3 languages, 10+ worked examples, debugging checklists, and the exact decision tree FAANG interviewers expect you to know.

Dec 19, 2025 · This article introduces the core framework of the sliding window algorithm, summarizing the common problem-solving approaches and code templates for all sliding window problems on …

The template for solving a variable window problem involves maintaining two pointers, start and end, which represent the indices of the current window. Initialize the window indices: Start by initializing …

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Dec 21, 2019 · Today we’ll be learning about the Sliding Window pattern. I’ll go through an overview, walk through the 3 keys steps with an example, and give you a general set of rules to use.

Sep 2, 2025 · Instead of repeatedly iterating over the same elements, the sliding window maintains a range (or “window”) that moves step-by-step through the data, updating results incrementally.

# Sliding windows code template is most used in substring match or maximum/minimum problems. # It uses two-pointer as boundary of sliding window to traverse, and use a counter (dict) maintain current …

Jul 15, 2023 · int i = 0, j = 0; for (; i < nums.length; i++) { // code using nums [i] to update the state // that might invalidate the window if (invalid ()) { // code using nums [j] to update the state // and shift the …

Nov 15, 2025 · Master the universal sliding window template across Python, Java, and JavaScript. Learn how to avoid reinventing the wheel and ship bug-free solutions faster in coding interviews.

May 1, 2025 · The Sliding window technique is a powerful problem-solving pattern where we use two pointers to define a window and slide them over the problem space to meet the given requirements.