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lucproblem009.c

Problem Statement

Write a program to add first seven terms of the following series using a for loop. 1 / 1! + 2 / 2! + 3 / 3! + ...

Metadata

Property Detail
Author Amit Dutta (amitdutta4255@gmail.com)
License MIT
Difficulty Beginner (index: 0 / 10)

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Source Code

#include <stdio.h>
#define N 7 // update N here

int main()
{
    double sum = 0; int fact = 1;
    for (int i = 1; i <= N; i++)
    {
        fact *= i;
        sum += (double)i / fact;
    }
    printf("Sum of the series : %g", sum);
    return 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 (lucproblem009.c):

    #include <stdio.h>
    #define N 7 // update N here

    int main()
    {
        double sum = 0; int fact = 1;
        for (int i = 1; i <= N; i++)
        {
            fact *= i;
            sum += (double)i / fact;
        }
        printf("Sum of the series : %g", sum);
        return 0;
    }