#include <bits/stdc++.h>
using namespace std;
int main(){
    int N,A,K,ans=0,range=3e5;
    set<int> s;
    auto comp=[](vector<int> a,vector<int> b){
        return a[1]<b[1];
    };
    priority_queue<vector<int>,vector<vector<int>>,decltype(comp)> q{comp};
    queue<vector<int>> temp;
    cin>>N;
    s.insert(0);
    q.push((vector<int>){0,range});
    for(int i=0;i<N;++i){
        cin>>A;
        auto j=s.lower_bound(A);
        if(j!=s.end()&&*j==A){
            continue;
        }
        --j;
        K=A-*j;
        while(!q.empty()&&q.top()[1]>K){
            vector<int> v=q.top();
            s.insert(v[0]+K);
            temp.push((vector<int>){v[0]+K,v[1]-K});
            temp.push((vector<int>){v[0],K});
            q.pop();
        }
        while(!temp.empty()){
            q.push(temp.front());
            temp.pop();
        }
        ++ans;
    }
    cout<<ans<<endl;
}