Submission #1099293

#	Time	Username	Problem	Language	Result	Execution time	Memory
1099293		vjudge1	Kitchen (BOI19_kitchen)	C++17	100 / 100	104 ms	202956 KiB

kitchen

#include<bits/stdc++.h>
#define ll long long
#define task ""
using namespace std;
const ll maxn = 302, LG = 21, mod = 998244353, inf = 1e18;
ll n, m, k, a[maxn], b[maxn], req = 0, tot = 0, dp[maxn][maxn*maxn];
int main ()
{
    //freopen(task".INP", "r", stdin);
    //freopen(task".OUT", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m >> k;
    for (int i = 1; i <= n; i++)
    {
        cin >> a[i];
        req += a[i];
    }
    for (int i = 1; i <= m; i++)
    {
        cin >> b[i];
        tot += b[i];
    }
    if (m < k || tot < req)
    {
        cout << "Impossible";
        return 0;
    }
    for (int i = 1; i <= n; i++)
        if (a[i] < k)
        {
            cout << "Impossible";
            return 0;
        }
    for (int i = 0; i <= m; i++)
        for (int j = 0; j <= tot; j++) dp[i][j] = -1;
    dp[0][0] = 0;
    for (int i = 0; i < m; i++)
        for (int j = 0; j <= tot; j++)
        {
            if (dp[i][j] == -1) continue;
            dp[i + 1][j] = max(dp[i + 1][j], dp[i][j]);
            if (j + b[i + 1] <= tot) dp[i + 1][j + b[i + 1]] = max(dp[i + 1][j + b[i + 1]], dp[i][j] + min(b[i + 1], n));
        }
    for (int i = req; i <= tot; i++)
        if (dp[m][i] >= n*k)
        {
            cout << i - req;
            return 0;
        }
    cout << "Impossible";
}

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