Array operations in c++ using functions. Deletion & Insertion in array.

[im-sardarAmmarkhan]

C++

[KhawarMehfooz]

Insertion in Array at specific Position

#include <iostream>
using namespace std;

// Function to insert an element at a specific position in an array
void insertElement(int arr[], int& n, int pos, int value)
{
    // Shift all elements after the position to the right
    for (int i = n - 1; i >= pos; i--)
        arr[i + 1] = arr[i];

    // Insert the value at the specified position
    arr[pos] = value;

    // Increment the size of the array
    n++;
}
int main()
{
    int arr[] = {1, 2, 3, 4, 5};
    int n = 5;

    int pos = 2; // position to insert the element
    int value = 9; // value of the element to insert

    cout << "Array before insertion: ";
    for (int i = 0; i < n; i++)
        cout << arr[i] << " ";

    insertElement(arr, n, pos, value);

    cout << "\nArray after insertion: ";
    for (int i = 0; i < n; i++)
        cout << arr[i] << " ";

    return 0;
}

Deletion in Array at Specific Index

#include <iostream>
using namespace std;

// Function to delete an element at a specific position in an array
void deleteElement(int arr[], int& n, int pos)
{
    // Shift all elements after the position to the left
    for (int i = pos; i < n - 1; i++)
        arr[i] = arr[i + 1];

    // Decrement the size of the array
    n--;
}

int main()
{
    int arr[] = {1, 2, 3, 4, 5};
    int n = 5;

    int pos = 2; // position to delete the element from

    cout << "Array before deletion: ";
    for (int i = 0; i < n; i++)
        cout << arr[i] << " ";

    deleteElement(arr, n, pos);

    cout << "\nArray after deletion: ";
    for (int i = 0; i < n; i++)
        cout << arr[i] << " ";

    return 0;
}