Add Queue using LinkedList

Data Structure Algo/C/Queue using link list.c

@@ -0,0 +1,86 @@
+#include<stdio.h>
+#include<stdlib.h>
+struct node
+{	
+	int data;
+	struct node *link;
+}*front=NULL,*rear=NULL;
+void enqueue(int value)
+{
+	struct node *temp;
+	temp=(struct node*)malloc(sizeof(struct node));
+	temp->data=value;
+	temp->link=NULL;
+	if(front==NULL)
+	{
+		front=temp;
+		rear=temp;
+	}
+	else{
+
+		rear->link=temp;
+		rear=temp;	
+	}
+}
+void dequeue()
+{
+	struct node *temp;
+	if(front==NULL)
+	{
+		printf("queue is empty!\n");
+	}
+	else{
+		temp=front;
+		printf("deleted element is: %d\n",temp->data);
+		front=front->link;
+		free(temp);
+	}
+}
+
+void display()
+{
+	struct node *p;
+	p=front;
+	if(front==NULL)
+	{
+		printf("queue is empty!\n");
+	}
+	printf("The queue is:\n");
+	while(p->link!=NULL)
+	{
+		printf("%d->",p->data);
+		p=p->link;
+	}
+	printf("%d\n",p->data);
+
+}
+int main(void)
+{
+	int n,ch,value;
+	while(1)
+	{
+		printf("stack menu is:\n\n");
+		printf("1. insert element\n");
+		printf("2. delete element\n");
+		printf("3. display\n");
+		printf("4. exit\n\n");
+		printf("Enter your choice(1-4):\n");
+		scanf("%d",&ch);
+		switch(ch)
+		{
+			case 1: printf("Enter the value to insert in queue:\n");
+			        scanf("%d",&value);
+				 enqueue(value);
+				 break;
+			case 2: dequeue();
+			        break;
+			case 3: display();
+				 break;
+			case 4: exit(0);
+			default: printf("Wrong choice!\n");
+		}
+	}
+	return 0;
+}
+
+