#include <iostream>
using namespace std;

typedef int T;
typedef struct cell {
	T info;
	cell *next;
} * list;

int length(list l);
void print(list l);
list clear(list & l);

int main() {
	list lista = new cell;
	list head = new cell;
	list aux = head;
	cout << "Numero rounds: ";
	int round;
	cin >> round;
	for (int i = 0; i < round; i++) {
		aux->info = i + 1;
		aux->next = lista;
		lista = aux;
	}
	aux->next = nullptr;
	/*
	aux = head;
	int n = 0;
	while ((aux != nullptr) && (n<round)){
		print(aux);
		n++;
	}
	cout << endl;*/
	aux = head;
	cout << length(aux);
	return 0;
}

//lunghezza di una lista
int length(list l) {
	if (l) return length(l->next) + 1;
	else return 0;
}

//stampa una lista
void print(list l) {
	if (l) {
		cout << l->info << " ";
		print(l->next);
	}
}

//cancella lista
list clear(list & l) {
	if (l) {
		l->next = clear(l->next);
		delete l;
	}
	return nullptr;
}