#include<bits/stdc++.h>
using namespace std;
int n,m,a[100002],ans;
int main(){
    cin>>n>>m;
	ans=n+1;
    for(int i=1;i<=n;i++){
        cin>>a[i];
        if(a[i]+a[i-1]<=m){
        	a[i]+=a[i-1],ans--;
		}
    }
    cout<<ans;
    return 0;
}