UVa Q907

#include <bits/stdc++.h>
using namespace std;

int dis[601];

int32_t main(){
    int n,k,sum = 0;
    while(cin >> n >> k){
        ++k;
        for(int i = 0; i <= n; ++i){
            cin >> dis[i];
            sum += dis[i];
        }
        int small = 0, big = sum;
        while(small <= big){
            int mid = (small + big) / 2;
            int days, idx = 0;
            for(days = 0; days <= k && idx <= n; ++days){
                sum = 0;
                while(idx <= n && sum+dis[idx] <= mid){
                    sum += dis[idx];
                    ++idx;
                }
            }
            if(days <= k)big = mid - 1;
            else small = mid + 1;
        }
        cout << small << '\n';
    }
    return 0;
}