Submission #1016949

#	Time	Username	Problem	Language	Result	Execution time	Memory
1016949		vjudge1	Kitchen (BOI19_kitchen)	C++17	100 / 100	11 ms	8860 KiB

kitchen

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
const ll sz=1e5+5, szz=1e6+5;
ll a[sz], b[sz], dp[szz], suma, sumb, f=1;
int main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    ll n, m, k;
    cin>>n>>m>>k;
    for(int i=1; i<szz; i++) dp[i]=-1;
    for(int i=1; i<=n; i++){
        cin>>a[i];
        suma+=a[i];
        if(a[i]<k) f=0;
    }
    for(int i=1; i<=m; i++){
        cin>>b[i];
    }
    if(!f){ cout<<"Impossible"; return 0;}
    for(int i=1; i<=m; i++){
        sumb+=b[i];
        for(int j=sumb-b[i]; j>=0; j--){
            if(dp[j]!=-1){
                dp[j+b[i]]=max(dp[j+b[i]], dp[j]+min(n, b[i]));
            }
        }
    }
    for(int i=suma; i<sz; i++){
        if(dp[i]>=n*k){
            cout<<i-suma;
            return 0;
        }
    }
    cout<<"Impossible";
}

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