array_position.c

/*Q. C program for inserting an element at a specific position in an array?
Name      Anish sharma
Roll no.  140*/
#include<stdio.h>
void main()
{
    int i,n,pos,arr[100];           //variable declaration
    /* 
    i is for looping variable
    n is for storing the maximum number of elements of array
    pos is for position where you want to insert element
    */
    printf("Enter the number of elements you want to enter:");  
    scanf("%d",&n); 
    printf("Enter elements of the array\n");           
    for(i=0;i<n;i++) 
    {
        scanf("%d",&arr[i]);            //inserting elements in array
    }
    printf("Elements of array are\n");
    for(i=0;i<n;i++)
    {
        printf("%d\n",arr[i]);         //displaying elements of array before inserting at a specific position
    }
    printf("Enter the position where you want to add element : ");
    scanf("%d",&pos);
    n++;                        //incrementing value of n by 1 for changing size of array
    for(i=n;i>=pos;i--)
    {
        arr[i]=arr[i-1];        //incrementing indexes of elements by 1 
    }
    printf("Enter the element : ");
    scanf("%d",&arr[pos-1]);    //getting the value of element at that specific position
    printf("Elements of array are\n");
    for(i=0;i<n;i++)
    {
        printf("%d\n",arr[i]);  //displaying elements of array before inserting at a specific position
    }
}