#pragma GCC optimize("O3,unroll-loops")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define int long long
#define f first
#define s second
#define pb push_back
#define ld long double
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define vec vector
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using oset = tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>;
mt19937_64 gen(chrono::steady_clock::now().time_since_epoch().count());
const ld eps = 1e-6;
const int mod = 1e9 + 7;
const int oo = 2e9;
const ll OO = 2e18;
const int N = 2e5 + 10;
void solve()
{
int n;
cin >> n;
vec<int> a(n + 1);
for (int i = 1; i <= n; i++) cin >> a[i];
vec<int> bl;
bl.pb(a[1]);
int last = 2, sum = 0;
for (int i = 2; i <= n; i++)
{
sum += a[i];
if (sum >= bl.back())
{
while (last < i && bl.back() + a[last] <= sum - a[last])
{
sum -= a[last];
bl.back() += a[last];
last++;
}
bl.pb(sum);
last = i + 1;
sum = 0;
}
}
cout << sz(bl);
}
int32_t main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
solve();
return 0;
}
