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#include<stdio.h>
#include<stdlib.h>
int a[10], pos, elem;
int n = 0;
void create();
void display();
void insert();
void del();
void main()
{
int choice;
while(1)
{
printf("\n\n~~~~MENU~~~~");
printf("\n=>1. Create an array of N integers");
printf("\n=>2. Display of array elements");
printf("\n=>3. Insert ELEM at a given POS");
printf("\n=>4. Delete an element at a given POS");
printf("\n=>5. Exit");
printf("\nEnter your choice: ");
scanf("%d", &choice);
switch(choice)
{
case 1: create();
break;
case 2: display();
break;
case 3: insert();
break;
case 4:del();
break;
case 5:exit(1);
break;
default:printf("\nPlease enter a valid choice:");
}
}
}
void create()
{
int i;
printf("\nEnter the number of elements: ");
scanf("%d", &n);
printf("\nEnter the elements: ");
for(i=0; i<n; i++)
{
scanf("%d", &a[i]);
}
}
void display()
{
int i;
if(n == 0)
{
printf("\nNo elements to display");
return;
}
printf("\nArray elements are: ");
for(i=0; i<n;i++)
printf("%d\t ", a[i]);
}
void insert()
{
int i;
if(n == 5)
{
printf("\nArray is full. Insertion is not possible");
return;
}
do
{
printf("\nEnter a valid position where element to be inserted: ");
scanf("%d", &pos);
}while(pos > n);
printf("\nEnter the value to be inserted: ");
scanf("%d", &elem);
for(i=n-1; i>=pos ; i--)
{
a[i+1] = a[i];
}
a[pos] = elem;
n = n+1;
display();
}
void del()
{
int i;
if(n == 0)
{
printf("\nArray is empty and no elements to delete");
return;
}
do
{
printf("\nEnter a valid position from where element to be deleted: ");
scanf("%d", &pos);
}while(pos>=n);
elem = a[pos];
printf("\nDeleted element is : %d \n", elem);
for( i = pos; i< n-1; i++)
{
a[i] = a[i+1];
}
n = n-1;
display();
}
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