Submission #878939

#	Time	Username	Problem	Language	Result	Execution time	Memory
878939		Tien_Noob	Kitchen (BOI19_kitchen)	C++17	100 / 100	20 ms	816 KiB

kitchen

//Make CSP great again
//Vengeance
#include <bits/stdc++.h>
#define TASK "TESTCODE"
using namespace std;
const int N = 3e2;
int dp[N * N + 1];
int n, m, k, a[N + 1], b[N + 1], sum;
void read()
{
    cin >> n >> m >> k;
    for (int i = 1; i <= n; ++ i)
    {
        cin >> a[i];
        if (a[i] < k)
        {
            cout << "Impossible";
            exit(0);
        }
        sum += a[i];
    }
    for (int j = 1; j <= m; ++ j)
    {
        cin >> b[j];
    }
}
void solve()
{
    memset(dp, -0x3f, sizeof(dp));
    dp[0] = 0;
    for (int j = 1; j <= m; ++ j)
    {
        for (int i = N * N - b[j]; i >= 0; -- i)
        {
            dp[i + b[j]] = max(dp[i + b[j]], dp[i] + min(n, b[j]));
        }
    }
    for (int i = sum; i <= N * N; ++ i)
    {
        if (dp[i] >= n * k)
        {
            cout << i - sum;
            return ;
        }
    }
    cout << "Impossible";
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (fopen(TASK".INP", "r"))
    {
        freopen(TASK".INP", "r", stdin);
        //freopen(TASK".OUT", "w", stdout);
    }
    int t = 1;
    bool typetest = false;
    if (typetest)
    {
        cin >> t;
    }
    for (int __ = 1; __ <= t; ++ __)
    {
        //cout << "Case " << __ << ": ";
        read();
        solve();
    }
}

Compilation message (stderr)

kitchen.cpp: In function 'int main()':
kitchen.cpp:54:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |         freopen(TASK".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

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