`P032.c`¶

Problem Statement

WAP to input a number and check whether it is a Niven number or not. (When a number is divisible by its sum of digit) e.g. : n = 126

Metadata¶

Property	Detail
Author	Amit Dutta (amitdutta4255@gmail.com)
License	MIT
Difficulty	Beginner (index: 1 / 10)

Concepts¶

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Recursion
Iteration

Actions¶

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Source Code¶

#include <stdio.h>
int main()
{
    int n, temp, sod = 0;
    printf("Enter the number : ");
    scanf("%d", &n);
    temp = n;
    while (temp > 0)
    {
        sod = sod + (temp % 10);
        temp = temp / 10;
    }
    if (n % sod == 0)
        printf("\nIt is Niven number.");
    else
        printf("\nIt is not a Niven number.");
    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 (P032.c):

    #include <stdio.h>
    int main()
    {
        int n, temp, sod = 0;
        printf("Enter the number : ");
        scanf("%d", &n);
        temp = n;
        while (temp > 0)
        {
            sod = sod + (temp % 10);
            temp = temp / 10;
        }
        if (n % sod == 0)
            printf("\nIt is Niven number.");
        else
            printf("\nIt is not a Niven number.");
        return 0;
    }

P032.c¶