Submission #1099374

#	Time	Username	Problem	Language	Result	Execution time	Memory
1099374		vjudge1	Kitchen (BOI19_kitchen)	C++17	100 / 100	73 ms	100504 KiB

kitchen

#include <bits/stdc++.h>

using namespace std;

const long long mod = 1e9 + 7;
const int MaxN = 3e2 + 5;

int n, m, k;
int a[MaxN];
int b[MaxN];

void Inp()
{
    cin >> n >> m >> k;
    for (int x = 1; x <= n; x++)
    {
        cin >> a[x];
    }
    for (int x = 1; x <= m; x++)
    {
        cin >> b[x];
    }
}

int F[MaxN][MaxN * MaxN + 5];

void Exc()
{
    int suma = 0, sumb = 0;
    for (int x = 1; x <= n; x++)
    {
        suma += a[x];
        if (a[x] < k || m < k)
        {
            cout << "Impossible";
            return;
        }
    }
    for (int x = 1; x <= m; x++)
    {
        sumb += b[x];
    }
    for (int x = 0; x <= m; x++)
    {
        for (int y = 0; y <= sumb; y++)
        {
            F[x][y] = -1;
        }
    }
    F[0][0] = 0;
    for (int x = 1; x <= m; x++)
    {
        for (int y = 0; y < b[x]; y++)
        {
            if (F[x - 1][y] != -1)
            {
                F[x][y] = F[x - 1][y];
            }
        }
        for (int y = b[x]; y <= sumb; y++)
        {
            if (F[x - 1][y] != -1)
            {
                F[x][y] = F[x - 1][y];
            }
            if (F[x - 1][y - b[x]] != -1)
            {
                F[x][y] = max(F[x][y], F[x - 1][y - b[x]] + min(b[x], n));
            }
        }
    }
    for (int x = suma; x <= sumb; x++)
    {
        if (F[m][x] >= n * k)
        {
            cout << x - suma;
            return;
        }
    }
    cout << "Impossible";
}

int main()
{
    //freopen("G.INP", "r", stdin);
    //freopen("G.OUT", "w", stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int test = 1;
    //cin >> test;
    for (int x = 1; x <= test; x++)
    {
        Inp();
        Exc();
    }
    return 0;
}

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