Submission #1133332

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133332		enzy	Kitchen (BOI19_kitchen)	C++20	21 / 100	108 ms	196656 KiB

kitchen

#include <bits/stdc++.h>
using namespace std;
const int maxn=310;
int v[maxn], dp[maxn][maxn*maxn], pd[maxn][maxn*maxn];
int main()
{
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
    int n, m, k; cin >> n >> m >> k;
    int sum=0;
    for(int i=1;i<=n;i++){
        int a; cin >> a;
        sum+=a;
        if(a<k){
            cout << "Impossible" << endl;
            return 0;
        }
    }
    pd[0][0]=1;
    for(int i=1;i<=m;i++) cin >> v[i];
    for(int i=1;i<=m;i++){
        for(int j=0;j<v[i];j++){
            dp[i][j]=dp[i-1][j];
            pd[i][j]=pd[i-1][j];
        }
        for(int j=0;j<maxn*maxn-v[i];j++){
            if(pd[i-1][j]){
                dp[i][j+v[i]]=max(dp[i-1][j+v[i]],dp[i-1][j]+min(v[i],n));
                pd[i][j+v[i]]=1;
            }else dp[i][j+v[i]]=dp[i-1][j+v[i]];
            pd[i][j+v[i]]=max(pd[i-1][j+v[i]],pd[i][j]);
        }
    }
    for(int i=sum;i<maxn*maxn;i++){
        if((dp[m][i]/n)>=k){
            cout << i-sum << endl;
            return 0;
        }
    }
    cout << "Impossible" << endl;
    return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 22
• Subtask 3: 0 / 20
• Subtask 4: 21 / 21
• Subtask 5: 0 / 28