#include <bits/stdc++.h>
using namespace std;
int n,t,w,chen_zhe;
int a[2000010],sum[2000010],kkksc03[2000010],id[2000010];
int main(){
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	scanf("%d",&n);
	for (int i = 1; i <= n; i++){
		scanf("%d",&a[i]);
		a[i+n] = a[i];
	}
	for (int i = 1; i <= 2*n; i++){
		sum[i] = sum[i-1]+a[i];
	}
	t = w = 1;
	kkksc03[1] = sum[1];
	id[1] = 1;
	for (int i = 2; i <= n; i++){
		while (sum[i] < kkksc03[w]){
			w--;
			if (w < t){
				break;
			}
		}
		w++;
		kkksc03[w] = sum[i];
		id[w] = i;
	}
	if (kkksc03[t] >= 0){
		chen_zhe++;
	}
	for (int i = n+1; i <= 2*n-1; i++){
		while (id[t] < i-n+1){
			t++;
			if (t > w){
				break;
			}
		}
		if (w >= t){
			while (sum[i] < kkksc03[w]){
				w--;
				if (w < t){
					break;
				}
			}		
		}
		w++;
		kkksc03[w] = sum[i];
		id[w] = i;
		if (kkksc03[t]-sum[i-n] >= 0){
			chen_zhe++; 
		}
	}
	printf("%d",chen_zhe);
	return 0;
}