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Solve LeetCode 3 Longest Substring Without Repeating Characters in C++ using the sliding window

Longest Substring Without Repeating Characters in C++ LeetCode 3 · sliding window · last index array Table of Contents Problem Statement Approach Algorithm C++ Program Input Sample Output Output Explanation Dry Run Flow of Execution Time Complexity Space Complexity Applications Key Points Interview Questions Frequently Asked Questions Conclusion Problem Statement 3. Longest Substring Without Repeating Characters Given a string s , find the length of the longest substring that contains no repeating characters. A substring is a continuous part of the string, so "pwke" is a subsequence of "pwwkew" but not a substring. Approach We use a sliding window . The window is the part of the string between start and end , and we always keep it free of repeated characters. An array lastIndex of size 128 remembers the most recent position of every ASCII ...

Structure Examples in C Programming

Structure Examples in C Programming

✅ Structure Examples in C Programming

1️⃣ Sensor Data Structure (IoT / Embedded Systems)

struct SensorData {
    float temperature;
    float humidity;
    float pressure;
};
    

๐Ÿง  Explanation:

This structure represents typical data collected from environmental sensors used in IoT devices.

2️⃣ Date and Time Management

struct Date {
    int day;
    int month;
    int year;
};
    

๐Ÿง  Explanation:

This structure can be used for handling calendar date-related information.

3️⃣ Graphics: 2D Point with Color

struct Point {
    int x;
    int y;
};

struct Color {
    int red;
    int green;
    int blue;
};
    

๐Ÿง  Explanation:

These structures help in managing positions and color attributes in 2D graphics or GUI systems.

4️⃣ Networking: IP Header

struct IPHeader {
    char sourceIP[16];
    char destIP[16];
    int ttl;
};
    

๐Ÿง  Explanation:

This structure simulates part of an IP header used in low-level networking code.

5️⃣ E-Commerce Order System

struct Order {
    int orderId;
    char productName[100];
    int quantity;
    float price;
};
    

๐Ÿง  Explanation:

This structure is useful for managing order records in an e-commerce platform.

๐Ÿ”‘ Keywords:

Structure in C, typedef struct, embedded systems, C programming examples, IoT C struct, C struct tutorial, data structure in C

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