`P056.c`¶

Problem Statement

WAP to swap the value of a and b using user defined method.

Metadata¶

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

Concepts¶

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Recursion
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Source Code¶

#include <stdio.h>

void swap(int *a, int *b)
{
    int temp = *a;
    *a = *b;
    *b = temp;
}

int main()
{
    int a, b;
    printf("Enter A and B: ");
    scanf("%d %d", &a, &b);
    printf("\nBefore swap A: %d, B: %d", a, b);
    swap(&a, &b);
    printf("\nAfter swap A: %d, B: %d", a, b);
    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 (P056.c):

    #include <stdio.h>

    void swap(int *a, int *b)
    {
        int temp = *a;
        *a = *b;
        *b = temp;
    }

    int main()
    {
        int a, b;
        printf("Enter A and B: ");
        scanf("%d %d", &a, &b);
        printf("\nBefore swap A: %d, B: %d", a, b);
        swap(&a, &b);
        printf("\nAfter swap A: %d, B: %d", a, b);
        return 0;
    }

P056.c¶