#include<bits/stdc++.h>
#define bug(x) cerr<<__LINE__<<": "<<#x<<" = "<<x<<'\n'
using namespace std;
using ll = long long;
const int maxn = 500100;
int N, A[maxn];
ll S[maxn];
int go(int i, ll cur) {
if (i > N) return 0;
int lo = i + 1, hi = N, p = i + 1;
while (lo <= hi) {
int mi = (lo + hi) >> 1;
if (S[mi] - S[i] >= cur) {
p = mi;
hi = mi - 1;
} else
lo = mi + 1;
}
return 1 + go(p, S[p] - S[i]);
}
int main() {
ios::sync_with_stdio(0); cin.tie(0);
// freopen("cc.inp", "r", stdin);
// freopen("cc.out", "w", stdout);
cin >> N;
for (int i = 1; i <= N; ++i)
cin >> A[i], S[i] = A[i] + S[i - 1];
int ans = 0;
for (int i = 1; i <= N; ++i) {
ans = max(ans, go(i, S[i]));
}
cout << ans << '\n';
return 0;
}
