#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define lli long long int
#define rep(i,a,b) for (int i = (a); i <= (b);i++)
#define repa(i,a,b) for (int i = (a); i >= (b);i--)
#define debug(a) cout << #a << " = " << a << endl
#define debugsl(a) cout << #a << " = " << a << ", "
#define MAX 3000
#define val first
#define res second
lli n,sum;
lli arr[MAX+2];
pair<lli,lli> dp[MAX+2];
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin >> n;
rep(i,1,n) cin >> arr[i];
rep(i,1,n) {
sum = arr[i];
repa(j,i-1,0) {
if (dp[j].val <= sum) {
dp[i].val = sum;
dp[i].res = dp[j].res + 1;
break;
}
sum += arr[j];
}
}
cout << dp[n].res;
}
