created a program that uses linkedlist

linkedList.c

@@ -0,0 +1,99 @@
+/**
+ *this program:
+	1. counts the number of nodes in a liknedlist
+	2. adds new node at the end of the list
+	3.adds another new node at the beginning of the list
+ */
+#include <stdio.h>
+#include <stdlib.h>
+
+
+struct node
+{
+	int data;
+	struct node *link;
+};
+
+/*count function*/
+struct node* countNodes(struct node* head)
+{
+	int count = 0;
+
+	if (head == NULL)
+	{
+		printf("The linkedlist is empty\n");
+	}
+
+
+	while (head != NULL)
+	{
+		head = head -> link;
+		count++;
+	}
+	printf("Total nodes: %d\n", count);
+	return (0);
+}
+
+
+/*add new node at the end*/
+struct node* add_at_end(struct node* head, int data)
+{
+	struct node *temp = malloc(sizeof(struct node));
+	temp -> data = data;
+	temp -> link = NULL;
+
+	head -> link -> link -> link -> link = temp;
+
+	//head = temp;
+	printf("Added at the end: ");
+	while (head != NULL)
+	{
+		printf("%d ", head -> data);
+		head = head -> link;
+	}
+	printf("\n");
+	return (head);
+}
+
+/* add new node at the start of the list*/
+struct node* at_begin(struct node* head, int data)
+{
+	struct node *temp = malloc(sizeof(struct node));
+	temp -> data = data;
+	temp -> link = NULL;
+
+	temp -> link = head;
+	head = temp;
+
+	printf("Added at the beginning: ");
+	while (head != NULL)
+	{
+		printf("%d ", head -> data);
+		head = head -> link;
+	}
+	printf("\n");
+	return (head);
+}
+int main(void)
+{
+	/*create the linkedlist nodes*/
+	struct node *head = malloc(sizeof(struct node));
+
+	head -> data = 1;
+	head -> link = malloc(sizeof(struct node));
+	head -> link -> data = 23;
+	head -> link -> link = malloc(sizeof(struct node)); 
+	head -> link -> link -> data = 45;
+	head -> link -> link -> link = malloc(sizeof(struct node));
+	head -> link -> link -> link -> data = 243;
+	head -> link -> link -> link -> link  = NULL;
+
+
+	int data = 967;
+	//function call
+	countNodes(head);
+	add_at_end(head, data);
+	at_begin(head, data);
+
+	return (0);
+}