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    An array in C is a linear data structure that stores a fixed-size sequence of elements of the same data type in contiguous memory locations. Each element is accessed using an index, starting from 0 for the first element. Arrays allow fast random access and are widely used for storing lists, tables, and matrices efficiently.

    Key properties include:

    • Fixed size: Defined at declaration and cannot be changed.

    • Same data type: All elements must be of the same type.

    • Contiguous memory: Improves cache performance and access speed.

    Example: Declaration, Initialization, and Access

    #include <stdio.h>
    int main() {
    int arr[5] = {2, 4, 8, 12, 16}; // Declaration + Initialization
    printf("Third element: %d\n", arr[2]); // Accessing element at index 2
    arr[0] = 10; // Updating first element
    for(int i = 0; i < 5; i++) {
    printf("%d ", arr[i]); // Traversal
    }
    return 0;
    }
    Copied!

    Output:

    Third element: 8
    10 4 8 12 16
    Copied!

    Here, arr[2] accesses the third element, and arr[0] = 10 updates the first element.

    Types of Arrays in C

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  2. GeeksForGeeks
    https://www.geeksforgeeks.org › c-arrays

    Arrays in C - GeeksforGeeks

    Oct 17, 2025 · An array is a linear data structure that stores a fixed-size sequence of elements of the same data type in contiguous memory locations. Each element can be accessed directly …

    See results only from geeksforgeeks.org
  3. Programiz
    https://www.programiz.com › c-programming › c-arrays

    C Arrays (With Examples) - Programiz

    • In this tutorial, you learned about arrays. These arrays are called one-dimensional arrays. In the next tutorial, you will learn about multidimensional arrays (array of an array).
    See more on programiz.com
  4. W3School
    https://www.w3schools.com › c_arrays.php

    C Arrays - W3Schools

    Arrays are used to store multiple values in a single variable, instead of declaring separate variables for each value. To create an array, define the data type (like int) and specify the name …

    Usage example
    int myNumbers[] = {25, 50, 75, 100};
  5. Tutorial Ride
    https://www.tutorialride.com › c-array-programs

    30 C Programs and Code Examples on Arrays - Tutorial Ride

    This section contains 30 array based C Programs and Code Examples with solutions, output and explanation. This collection of solved array based examples on C programming will be very …

  6. WsCube Tech
    https://www.wscubetech.com › resources › c-programming › arrays

    Arrays in C Language (Explained With Types & Examples)

    What is Array in C Language? An array in C is a collection of multiple values of the same data type stored together under a single variable name. Instead of creating separate variables for each …

  7. Dot Net Tutorials
    https://dotnettutorials.net › lesson › array-in-c

    Array in C Language with Examples - Dot Net Tutorials

    An array is a derived data type in C that is constructed from the fundamental data type of the C programming language. An array is a collection of …

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  9. ScholarHat
    https://www.scholarhat.com › tutorial › array-in-c

    Arrays in C Programming: Operations on Arrays

    Arrays in C are one of the most versatile and powerful data structures in C. In this C tutorial, we’ll explore what makes arrays so great: their structure, …

  10. DevsEnv
    https://devsenv.com › tutorials › arrays-in-c...

    Arrays in C Programming - Algorithm and Practical …

    In summary, arrays are a useful data structure in C programming that allow you to store and manipulate large amounts of data efficiently. They can be …

  11. Tutorials Freak
    https://tutorialsfreak.com › c-programming-tutorial › c-array

    What is Array in C? Examples, Types, Uses (Full Guide)

    Arrays are not treated as objects in C like Java. They are derived and store user-defined data types, such as structures and pointers. Moreover, they are more useful as a collection of …

  12. Studytonight
    https://www.studytonight.com › arrays-in-c

    C Arrays | Studytonight

    Sep 17, 2024 · Learn all about Arrays in C language. How to create Array in C, how to assign value to array in C, etc. with examples.

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