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assignment-p-10.c

Problem Statement

Write a C program that defines a structure Rectangle with attributes length and width. Include a user-defined function named calculateArea with the signature float calculateArea(struct Rectangle r);. The function should calculate and return the area of the rectangle.

Metadata

Property Detail
Author Amit Dutta (amitdutta4255@gmail.com)
License MIT
Difficulty Beginner (index: 3 / 10)

Concepts

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  • Recursion
  • Pointers

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Source Code

#include <stdio.h>

struct Rectangle
{
    float length;
    float width;
};

float calculateArea(struct Rectangle);

int main()
{
    struct Rectangle rec;
    printf("Enter the length of the Rectangle: ");
    scanf("%f", &rec.length);
    printf("Enter the width of the Rectangle: ");
    scanf("%f", &rec.width);
    printf("\nArea of the Rectangle = %g", calculateArea(rec));
}

float calculateArea(struct Rectangle r)
{
    return r.length * r.width;
}

Explanation

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    You are explaining a C programming code to a beginner.

    STRICT RULES:

    - Only use the given code. Do NOT assume anything not present.

    - Do NOT add extra examples.

    - Keep explanation clear and short.

    - If something is unclear, say "Not clear from code".

    - Follow the exact format below. Do NOT change headings.

    FORMAT:

    [START]

    ## What it does

    (Explain the overall purpose in 1-2 sentences)

    ## Step-by-step

    (Explain how the code works in steps, simple language)

    ## Key Concepts

    (List concepts like loop, condition, function, etc.)

    ## Notes

    (Mention any limitations, errors, or assumptions)

    [END]

    CODE (assignment-p-10.c):

    #include <stdio.h>

    struct Rectangle
    {
        float length;
        float width;
    };

    float calculateArea(struct Rectangle);

    int main()
    {
        struct Rectangle rec;
        printf("Enter the length of the Rectangle: ");
        scanf("%f", &rec.length);
        printf("Enter the width of the Rectangle: ");
        scanf("%f", &rec.width);
        printf("\nArea of the Rectangle = %g", calculateArea(rec));
    }

    float calculateArea(struct Rectangle r)
    {
        return r.length * r.width;
    }