Implementation of the basic Array manipulation operations like searching, deleting and inserting elements as long as the user wants in the C language.

array_operations.c

#include<stdio.h>

void main()
{
	int n, A[25], i, el, pos, choice, position, index = 0;
	char cont='y';

	printf("Number of elements:");
	scanf("%d", &n);

	printf("\n Enter the elements:");

	for(i=0;i<n;i++)
		scanf("%d", &A[i]);

	do{
		printf("\n\n1.Delete an element\n\n2.Insert an element\n\n3.Search for an element\nEnter your choice: ");
		scanf("%d", &choice);

		switch(choice)
		{
			case 1:

				printf("\nPosition of the element to be deleted: ");
				scanf("%d", &pos);

				if(pos<=n)
				{
				for(i=pos-1; i<n-1;i++)
				{
					A[i]=A[i+1];
				}

				printf("\n\nAfter deleting the element at position %d, the array is:\n", pos);

				for(i=0;i<n-1;i++)
					printf("%d  ", A[i]);

				n--;

				if(n==0)
				{
					printf("\nNo more elements present to be deleted. You may add more elements.");
					break;
				}
				}
				else
					{
						if(n==0)
							printf("\nThe array is empty!");
						else
							printf("\nOnly positions up to %d is allowed!.", n);	
					}

			break;

		case 2:

			printf("\n\nEnter the element to be inserted:");
			scanf("%d", &el);

			printf("\n\nPosition:");
			scanf("%d", &position);

			if(position<=n)
			{
				for(i=n-1;i>=position;i--)
				{
					A[i]=A[i-1];
				}

				A[position-1] = el;

				printf("\nThe array after inserting %d at the position %d is: \n", el, position);

				for(i=0;i<n+1;i++)
					printf("%d  ", A[i]);

				n++;
			}

			else
			{
				printf("\nPosition should be <= %d", n);
			}

			break;

			case 3:

				printf("Element to be searched: ");
				scanf("%d", &el);

				for(i=0;i<n;i++)
				{
					if(A[i] == el)
					{
						index = i;
						break;
					}
				}

				if(index == 0)
				{
					printf("\n%d is not found within the array.", el);
				}

				else
				{
					printf("\n%d found at location %d", el, index+1);
				}

		}

		printf("\nWant to continue? (Y/y)");

		cont = getch();

	}while(cont == 'y' || cont == 'Y');
}