Submission #915769

#	Time	Username	Problem	Language	Result	Execution time	Memory
915769		RaulAndrei01	Kitchen (BOI19_kitchen)	C++14	100 / 100	28 ms	768 KiB

kitchen

#include<iostream>
#include<vector>
 
using namespace std;
const int NMAX = 400;
const int INF = 1e7;
int a[NMAX+1] , b[NMAX+1];
 
int dp[NMAX*NMAX+1]; // dp[sum] = cate ore max sunt eligibile pt n*k
 
int main ()
{
    int n, m, k;
    cin >> n >> m >> k;
 
    int sumA = 0;
    bool bad = 0;
    for (int i = 1; i <= n; i++)
    {
        cin >> a[i];
        sumA += a[i];
        if (a[i] < k) bad = 1;
    }
    
    int sumB = 0;
    for (int i = 1; i <= m; i++)
    {
        cin >> b[i];
        sumB += b[i];
    }
 
    if (bad || sumB < sumA) {
        cout << "Impossible\n";
        return 0;
    }
 
    for (int i = 0; i <= sumB; i++)
    {
        dp[i] = -INF;
    }
    
    dp[0] = 0;
 
    for (int i = 1; i <= m; i++)
    {
        for (int sum = sumB; sum >= b[i]; sum--)
        {
            int addToNK = min(b[i] , n);
            dp[sum] = max(dp[sum] , dp[sum-b[i]] + addToNK);
            
        }
    }
 
    int ans = 0;
    for (int i = sumA; i <= sumB; i++)
    {
        
        if (dp[i] >= n*k)
        {
            cout << i - sumA << '\n';
            return 0;
        }
    }
    
    cout << "Impossible\n";
}

Compilation message (stderr)

kitchen.cpp: In function 'int main()':
kitchen.cpp:54:9: warning: unused variable 'ans' [-Wunused-variable]
   54 |     int ans = 0;
      |         ^~~

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