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APC-S-010.c

Problem Statement

Write a program to input a new element at a specific position of an array. a[] = {4, 5, 2, 10, 6, 9, 8}, newItem = 7, position = 3

Metadata

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

Concepts

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  • Array
  • Sorting (possible)
  • Iteration

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Source Code

#include <stdio.h>

int main()
{
    int a[8] = {4, 5, 2, 10, 6, 9, 8};
    int i;

    printf("Elemnts of the array:  ");
    for (i = 0; i <= 6; i++)
        printf("%d  ", a[i]);

    printf("\nMethod 1:  ");
    for (i = 7; i >= 4; i--)
        a[i] = a[i - 1];
    a[3] = 7;
    for (i = 0; i <= 7; i++)
        printf("%d  ", a[i]);

    // another method
    printf("\nMethod 2:  ");
    int b[8] = {4, 5, 2, 10, 6, 9, 8};
    int temp1 = 7;
    for (i = 3; i <= 7; i++)
    {
        int temp2 = b[i];
        b[i] = temp1;
        temp1 = temp2;
    }
    for (i = 0; i <= 7; i++)
        printf("%d  ", b[i]);

    return 0;
}

Explanation

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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 (APC-S-010.c):

    #include <stdio.h>

    int main()
    {
        int a[8] = {4, 5, 2, 10, 6, 9, 8};
        int i;

        printf("Elemnts of the array:  ");
        for (i = 0; i <= 6; i++)
            printf("%d  ", a[i]);

        printf("\nMethod 1:  ");
        for (i = 7; i >= 4; i--)
            a[i] = a[i - 1];
        a[3] = 7;
        for (i = 0; i <= 7; i++)
            printf("%d  ", a[i]);

        // another method
        printf("\nMethod 2:  ");
        int b[8] = {4, 5, 2, 10, 6, 9, 8};
        int temp1 = 7;
        for (i = 3; i <= 7; i++)
        {
            int temp2 = b[i];
            b[i] = temp1;
            temp1 = temp2;
        }
        for (i = 0; i <= 7; i++)
            printf("%d  ", b[i]);

        return 0;
    }