C Program to insert an element in an array | C Program

 

#include<stdio.h>

#include<conio.h>

void main()

{

    int a[50],x,i,p,n; //p=position, n=no. of elements

    clrscr();

    printf("Enter No. of Elements in Array: ");

    scanf("%d",&n);

    printf("\nEnter elements of Array: ");

    for(i=0;i<n;i++)

     scanf("%d",&a[i]);

    printf("\nThe elements of Array are: \n");

    for(i=0;i<n;i++)

     printf("%d\t",a[i]);

     //insert an element

    printf("\n\nEnter a number to insert: ");

    scanf("%d",&x);

     

    //position for insert

    printf("\nIn which Position do you want to insert: ");

    scanf("%d",&p);

    if(p>n+1)

    {

      printf("\n\t**Invalid Position Number**");

      printf("\n\n");

      //print the updated array

      printf("Elements of Updated Array:\n\n"); 

      for (i=0;i<n;i++)

      printf("%d\t",a[i]);

    }

    else

    {

        n++; //increase the size by 1

        for(i=n;i>=p;i--) //shift element forword

        a[i]=a[i-1];

        a[p-1]=x; //insert x as position

        printf("\n\n");

        //print the updated array

        printf("Updated Array-\n\n");  

        for (i=0;i<n;i++)

        printf("%d\t",a[i]);

    }

    

     printf("\n");

     getch();

}

OUTPUT: 

 C Program to insert an element in an array