Added code to add an element at the beginning of the linked list.

Data Structures/LinkedList/insertAtBegin.cpp

@@ -0,0 +1,46 @@
+#include <bits/stdc++.h> 
+using namespace std;
+class Node
+{
+	public:
+	int data;
+	Node *next;
+};
+Node* insertAtBeg(Node *ptr)
+{   
+    int a;
+	Node *temp= new Node();
+	cout<<"Enter the data to be inserted at the beginning of the linked list  - \n";
+	cin>>a;
+	temp->data = a;
+	temp->next = ptr;
+	ptr = temp;
+	return ptr;
+}
+Node* display(Node *ptr)
+{
+	while(ptr!=NULL)
+	{
+		cout<<ptr->data<<" ";
+		ptr = ptr->next;
+	}
+	cout<<"\n";
+}
+int main()
+{   Node* Head = NULL;
+    int num; 
+	while(1)
+	{
+		cout<<"1. Enter 1 to insert an element in linked list\n2. Enter 2 to display element of a linked list\n3. Exit\nEnter you choice : ";
+		cin>>num;
+		switch(num)
+		{
+			case 1: Head = insertAtBeg(Head);
+			        break;
+			case 2: display(Head);
+			        break;
+			case 3 : exit(0);				  
+		}
+	}
+	return 0;
+}