#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using VI = vector <int>;
using VLL = vector <ll>;
int n, m;
const int N = 5e5 + 5;
const ll INF = 1e17;
ll nums[N], pre[N], dp[N];
signed main () {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
// freopen("in.txt", "r", stdin);
// freopen("out.txt", "w", stdout);
cin >> n;
for (int i = 1; i <= n; i++) cin >> nums[i];
for (int i = 1; i <= n; i++) dp[i] = INF;
nums[n+1] = INF;
for (int i = 1; i <= n+1; i++) pre[i] = pre[i-1] + nums[i];
ll ans = 1;
int l = 1, r = n;
while(l <= r) {
int mid = (l+r)>>1;
ll suf = 0, cur = 1, curSum = 0;
bool done = 1;
for (int i = n; i >= mid; i--) suf += nums[i];
for (int i = mid-1; i > 0; i--) {
if (nums[i] > suf) done = 0;
if (curSum + nums[i] > suf) {
cur++;
suf = curSum;
curSum = 0;
}
curSum += nums[i];
}
cur++;
if (done) {
// cout << mid << ": " << cur << '\n';
ans = max(ans, cur);
l = mid+1;
} else {
r = mid-1;
}
}
cout << ans << '\n';
}
