Submission #1243848

#	Time	Username	Problem	Language	Result	Execution time	Memory
1243848		chikien2009	Kitchen (BOI19_kitchen)	C++20	100 / 100	20 ms	1036 KiB

kitchen

#include <bits/stdc++.h>

using namespace std;

void setup()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

int n, m, k, a, sum, f[300 * 300 + 1];

int main()
{
    setup();

    cin >> n >> m >> k;
    for (int i = 0; i < n; ++i)
    {
        cin >> a;
        sum += a;
        if (a < k)
        {
            cout << "Impossible";
            return 0;
        }
    }
    while (m--)
    {
        cin >> a;
        for (int i = 300 * 300; i >= 0; --i)
        {
            if (a <= i && (a == i || f[i - a] > 0))
            {
                f[i] = max(f[i], f[i - a] + min(n, a));
            }
        }
    }
    for (int i = sum; i <= 300 * 300; ++i)
    {
        if (f[i] >= n * k)
        {
            cout << i - sum;
            return 0;
        }
    }
    cout << "Impossible";
    return 0;
}

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