Insertion-Delet

#include <stdio.h>

void disp(); void insert(); void del(); int i,n; int arr[100];

int main() { int ch; char c; int i,arr[100]; printf("\n Enter the size of Array\n "); scanf("%d",&n);

printf("\n ***********Enter the array elements************ \n ");
for(i=0;i<n;i++)
{
    printf(" \n arr[%d] :: ",i);
    scanf("%d",&arr[i]);
}

printf(" \n Enter 1-> Insert 2-> Delete 3->Display\n "); scanf("%d",&ch); do { switch(ch) { case 1: insert(arr); disp(arr); break;

    case 2:
        del(arr);
        disp(arr);
        break;

    default:
        printf("\n Invalid input\n");
}
printf(" \n Enter y/n to continue");
scanf("%c",&c);

}
while(c!=n);

}

  void insert(int arr[])
  {
    int v,p;
    printf("\n Enter the value and position of the element to be inserted \n");
    scanf("%d%d",&v,&p);

        for (i=n-1;i>=p-1;i--)
            arr[i+1]=arr[i];

        arr[p-1]=v;
    n=n+1;
    }
    void del( int arr[])
    {
        int p;
        printf("\n Enter the position\n");
        scanf("%d",&p);

        for(i=p;i<=n;i++)
            arr[i-1]=arr[i];
    n=n-1;

    }
    void disp()
    {

            printf("\n\n************ ARRAY VALUES ARE *************\n\n ");
        for(i=0;i<n;i++)
        {
            printf( " arr[%d] :: %d\n ",i,arr[i]);
        }
    }