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Full-Stack Internet Architecture
Full-Stack Internet Architecture
Nov 13, 2021 · Fundamentals

Sliding Window Technique: Concepts, Framework, and LeetCode Examples

This article introduces the sliding window algorithmic technique, explains its relation to TCP flow control, demonstrates its implementation with Java code for maximum subarray sum, longest substring without repeats, and minimum window substring problems, and provides a reusable framework for solving similar LeetCode challenges.

AlgorithmLeetCodeSliding Window
0 likes · 10 min read
Sliding Window Technique: Concepts, Framework, and LeetCode Examples
Full-Stack Internet Architecture
Full-Stack Internet Architecture
Feb 21, 2020 · Fundamentals

Longest Substring Without Repeating Characters – Sliding Window Analysis and Optimizations

This article explains the sliding‑window technique for solving the classic “Longest Substring Without Repeating Characters” problem, presents step‑by‑step analysis, demonstrates three Java implementations—from a basic set‑based method to hashmap and array optimizations—and discusses their time‑complexity improvements.

AlgorithmJavaSliding Window
0 likes · 8 min read
Longest Substring Without Repeating Characters – Sliding Window Analysis and Optimizations
Full-Stack Internet Architecture
Full-Stack Internet Architecture
Sep 11, 2019 · Fundamentals

Common Algorithm Tricks: Bit Manipulation, Two‑Pointer Techniques, and XOR Applications

This article reviews several practical algorithm tricks—including using n&(n‑1) to clear the lowest set bit, counting bits, converting numbers, applying double‑pointer methods to linked lists and sorted arrays, and leveraging XOR properties—to simplify typical interview coding problems.

AlgorithmBit ManipulationInterview
0 likes · 9 min read
Common Algorithm Tricks: Bit Manipulation, Two‑Pointer Techniques, and XOR Applications