#include <iostream>
#include <cstdio>
using namespace std;
int v[16002];
int main()
{
    freopen ("transport.in","r",stdin);
    freopen ("transport.out","w",stdout);

    int n,k,i,maxx=0,s=0,snou=0,st,dr,mijl,cnt=0;

    cin>>n>>k;
    for(i=1;i<=n;i++)
    {
        cin>>v[i];
        if(v[i]>maxx) maxx=v[i];

    }
    st=maxx;
    dr=s+10;
    while(st<=dr)
    {
        mijl=(dr+st)/2;
        for(i=1;i<=n;i++)
        {
            if(snou+v[i]<=mijl) snou+=v[i];
            else
            {
                cnt++;
                snou=0;
                snou=snou+v[i];
            }
        }
    }
    return 0;
}