Submission #567560

#	Time	Username	Problem	Language	Result	Execution time	Memory
567560		birthdaycake	Kitchen (BOI19_kitchen)	C++17	100 / 100	32 ms	1044 KiB

kitchen

#include<bits/stdc++.h>
#define endl '\n'
#define int long long
#define mod 1000000007
#define boost ios_base::sync_with_stdio(false), cin.tie(NULL);
using namespace std;
 
 
 
 
int dp[200001],a[20001],b[200001];
 
signed main(){
    boost;
    
    
    
    
    int n,m,k,sum = 0; cin >> n >> m >>  k;
    for(int i = 0; i < n; i++){
        cin >> a[i]; sum += a[i];
    }
    for(int j = 0; j < m; j++) cin >> b[j];
    if(m < k){
        cout << "Impossible";
        return 0;
    }
    for(int i = 0; i < n; i++){
        if(a[i] < k){
            cout << "Impossible";
            return 0;
        }
    }
    for(int i = 1; i <= 90000; i++) dp[i] = -1e18;
    for(int i = 0; i < m; i++){
        for(int j = 90000; j >= b[i]; j--){
            dp[j] = max(dp[j], dp[j - b[i]] + min(b[i],n));
        }
    }
    for(int i = sum; i <= 90000; i++){
        if(dp[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