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APC-S-013.c

Problem Statement

Write a fuction to calculate the average of an array

Metadata

Property Detail
Author Amit Dutta (amitdutta4255@gmail.com)
License MIT
Difficulty Beginner (index: 2 / 10)

Concepts

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  • Recursion
  • Array
  • Sorting (possible)
  • Iteration

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Source Code

#include <stdio.h>

double average(int []);

int main()
{
    int marks[10], i;
    printf("\nEnter 10 numbers: \n");
    for (i = 0; i <= 9; i++)
    {
        printf("Enter number %d: ", i + 1);
        scanf("%d", &marks[i]);
    }
    printf("\nAverage = %g", average(marks));
    return 0;
}

double average(int marks[10])
{
    int sum = 0;
    for (int i = 0; i <= 9; i++)
        sum += marks[i];
    return sum / 10.0;
}

Explanation

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Copy the prompt below and paste it into any AI assistant.

    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 (APC-S-013.c):

    #include <stdio.h>

    double average(int []);

    int main()
    {
        int marks[10], i;
        printf("\nEnter 10 numbers: \n");
        for (i = 0; i <= 9; i++)
        {
            printf("Enter number %d: ", i + 1);
            scanf("%d", &marks[i]);
        }
        printf("\nAverage = %g", average(marks));
        return 0;
    }

    double average(int marks[10])
    {
        int sum = 0;
        for (int i = 0; i <= 9; i++)
            sum += marks[i];
        return sum / 10.0;
    }