`pc007.c`¶

Problem Statement

Armstrong number check only for three digit

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 num, temp1, armstrongCheck = 0;
    printf("Enter a three digit number : ");
    if (scanf("%d", &num) != 1)
    {
        printf("\nOnly positive number allowed.");
        return 1;
    }
    if (num < 100 || num > 999)
    {
        printf("\nOnly Three digit postive number allowed.");
        return 1;
    }
    temp1 = num;
    while (temp1 > 0)
    {
        armstrongCheck += (temp1 % 10) * (temp1 % 10) * (temp1 % 10);
        temp1 /= 10;
    }
    if (armstrongCheck == num)
        printf("\nInput %d is a armstrong number.", num);
    else
        printf("\nInput %d is not a armstrong number.", num);
    return 0;
}

Explanation¶

Explain with AI

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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 (pc007.c):

    #include <stdio.h>

    int main()
    {
        int num, temp1, armstrongCheck = 0;
        printf("Enter a three digit number : ");
        if (scanf("%d", &num) != 1)
        {
            printf("\nOnly positive number allowed.");
            return 1;
        }
        if (num < 100 || num > 999)
        {
            printf("\nOnly Three digit postive number allowed.");
            return 1;
        }
        temp1 = num;
        while (temp1 > 0)
        {
            armstrongCheck += (temp1 % 10) * (temp1 % 10) * (temp1 % 10);
            temp1 /= 10;
        }
        if (armstrongCheck == num)
            printf("\nInput %d is a armstrong number.", num);
        else
            printf("\nInput %d is not a armstrong number.", num);
        return 0;
    }

pc007.c¶