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

#define ll long long

ll count(const ll* len, ll n, ll mid)
{
    ll sum = 0;
    for(ll i = 0; i < n; i++) {
        sum += len[i] / mid;
    }
    return sum;
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    ll n, k;
    cin >> n >> k;
    ll len[n];
    ll sum = 0, l = 1, r = -1;
    for(ll i = 0; i < n; i++) 
    {
        cin >> len[i];
        r = max(len[i], r);
        sum += len[i];
    }
    if(sum / k == 0)
    {
        cout << 0 << endl;
        return 0;
    }
    ll mid;
    while(count(len, n, r) < k){
        mid = (l + r) >> 1;
        ll temp = count(len, n, mid);
        if(temp >= k){
            l = mid + 1;
        }
        else{
            r = mid - 1;
        }
    }
    cout << r << endl;
    return 0;
}

以上代码AC了，然而在数据 3 3 232 124 456 的情况下，代码会输出228