Thread: help

Code:

#include<iostream>
using namespace std;
struct node {
	int data;
	struct node* next;
};
struct node* BuildOneTwoThree(){
	struct node* head=NULL;
	struct node* second=NULL;
	struct node* third=NULL;
	head= new struct node,second= new struct node,third= new struct node;
	head->next=second,second->next=third,third->next=NULL;
	head->data=1,head->next->data=2,head->next->next->data=3;
	return head;
};
int counter=0;
int length(struct node* list) {
	if(list!=NULL) {
		counter+=1;
		length(list->next);
	}
	return counter;
}

int main(){
	struct node* list=BuildOneTwoThree();
	cout<<"Length of List: "<<length(list)<<endl;
	system("pause");
	return 0;
}

is there any way not to use a global variable with this recursive function

Code:

int counter=0;
int length(struct node* list) {
	if(list!=NULL) {
		counter++;
		length(list->next);
	}
	return counter;
}

wow it worked.. thanx.. ^_^