Question

Write a program to create a list of elements. Input an element from the user that has to be inserted in the list. Also input the position at which it is to be inserted.

Answer 1

include <stdio.h>
int main()
{
    int list[100], n, element, position, i;
    // Input number of elements
    printf("Enter the number of elements: ");
    scanf("%d", &n);
    // Input list elements
    printf("Enter %d elements:\n", n);
    for(i = 0; i < n; i++)
    {
        scanf("%d", &list[i]);
    }
    // Input element to be inserted
    printf("Enter the element to be inserted: ");
    scanf("%d", &element);
    // Input position
    printf("Enter the position at which to insert: ");
    scanf("%d", &position);
    // Shift elements to the right
    for(i = n; i >= position; i--)
    {
        list[i] = list[i - 1];
    }
    // Insert the element
    list[position - 1] = element;
    n++;
    // Display the updated list
    printf("List after insertion:\n");
    for(i = 0; i < n; i++)
    {
        printf("%d ", list[i]);
    }
    return 0;
}

Output:

Enter the number of elements: 5

Enter 5 elements:

10 20 30 40 50

Enter the element to be inserted: 25

Enter the position at which to insert: 3

List after insertion:

10 20 25 30 40 50