Submission #949534

#	Time	Username	Problem	Language	Result	Execution time	Memory
949534		Darren0724	Kitchen (BOI19_kitchen)	C++17	72 / 100	125 ms	262144 KiB

kitchen

#include <bits/stdc++.h>
using namespace std;
#define LCBorz ios_base::sync_with_stdio(false); cin.tie(0);
#define int long long
#define all(x) x.begin(), x.end()
#define endl '\n'
#define no cout<<"Impossible"<<endl;return 0;
const int N=200005;
const int INF=1e18;

int32_t main() {
    LCBorz;
    int n,m,k;cin>>n>>m>>k;
    if(m<k){
        no;
    }
    vector<int> a(n),b(m);
    int total=0,ta=0,tb=0;
    for(int i=0;i<n;i++){
        cin>>a[i];
        if(a[i]<k){
            no;
        }
        total+=a[i];
    }
    for(int i=0;i<m;i++){
        cin>>b[i];
        ta+=b[i];
    }
    tb=(k==1?1:k*n);
    vector dp(ta+1,vector(tb+1,0));
    dp[0][0]=1;
    for(int i=0;i<m;i++){
        for(int j=ta;j>=b[i];j--){
            int tmp=min(b[i],n);
            for(int j1=tb;j1>=0;j1--){
                dp[j][min(j1+tmp,tb)]|=dp[j-b[i]][j1];
            }
        }
    }
    int ans=-1;
    for(int i=total;i<=ta;i++){
        for(int j=(k==1?1:k*n);ans==-1&&j<=tb;j++){
            if(dp[i][j]){
                ans=i;break;
            }
        }
    }
    if(ans==-1){
        no;
    }
    else{
        cout<<ans-total<<endl;
    }

    return 0;
}

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