#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define sz(x) (int) (x).size()
using namespace std;
typedef long long lint;
typedef pair<int,int> ii;
lint arr[500006];
lint prefix[500006];
lint most[500006];
lint take[500006];
int main(){
ios_base::sync_with_stdio(false); cin.tie(0);
int n; cin >> n;
for(int i = 1;i <= n;i++) cin >> arr[i];
for(int i = 1;i <= n;i++) prefix[i] = prefix[i-1] + arr[i];
for(int i = 1;i <= n;i++){
most[i] = 0;
for(int j = 0;j < i;j++){
lint dis = prefix[i] - prefix[j];
if(dis >= take[j]){
if(most[j]+1 > most[i]){
most[i] = most[j]+1;
take[i] = dis;
}
else if(most[j]+1 == most[i] && dis < take[i]){
take[i] = dis;
}
}
}
}
cout << most[n];
}
