#include <bits/stdc++.h>
using namespace std;
int n, m;
const int N = 5e5 + 5;
int nums[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];
int ans = 1, cur = 0, pre = nums[1];
for (int i = 2, l = 2; i <= n; i++) {
cur += nums[i];
if (cur >= pre) {
ans++;
// cout << pre << ' ' << cur << " -> ";
while(cur - nums[l] >= pre + nums[l]) {
pre += nums[l];
cur -= nums[l++];
}
// cout << pre << ' ' << cur << "\n";
pre = cur;
cur = 0;
l = i+1;
}
// cout << cur << ' ' << pre << '\n';
}
cout << ans << '\n';
}
