Submission #1193596

#	Time	Username	Problem	Language	Result	Execution time	Memory
1193596		yhx3	Kitchen (BOI19_kitchen)	C++20	0 / 100	2 ms	328 KiB

kitchen

#include<bits/stdc++.h>
#include<iostream>
#include<vector>

using namespace std;
#define ll long long


void solve() {  
    int n,m,k;
    cin >> n >> m >> k;
    vector<int> a(n);
    vector<int> b(m);
    for (int i = 0; i < n; i++)
    {
        cin >> a[i];
    }
    
    for (int i = 0; i < m; i++)
    {
        cin >> b[i];
    }
    
    if (k > m || (*min_element(a.begin(),a.end())) < k) {
        cout << "Impossible\n";
        return;
    }
    
    sort(b.begin(),b.end(),greater<int>());
    ll ans = 0;
    for (int i = 0; i < n; i++)
    {
        multiset<int> lst;
        int sm = 0;
        for (int j = 0; j < k; j++)
        {
            lst.insert(b[j]);
            sm+=b[j];
        }
        
        for (int j = k; j < m; j++)
        {
            auto ub = lst.upper_bound(sm-a[i]+b[j]);
            if (ub == lst.end()) {
                sm -= (*lst.rbegin());
                sm += b[j];
                lst.erase(prev(lst.end()));
                lst.insert(b[j]);
            } else if (ub == lst.begin()) {
                continue;
            } else {
                sm -= (*prev(ub,1));
                sm += b[j];
                lst.erase(*prev(ub,1));
                lst.insert(b[j]);
            }
        }
        ans += sm-a[i];
    }
    
    cout << ans << endl;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie();
    int t = 1;
    // cin >> t;
    
    while (t--)
    {
        solve();
    }
    return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 28