Submission #566866

#	Time	Username	Problem	Language	Result	Execution time	Memory
566866		inluminas	Kitchen (BOI19_kitchen)	C++17	100 / 100	54 ms	680 KiB

kitchen

#include"bits/stdc++.h"
using namespace std;

#define ll long long
#define endl "\n"
#define fastio ios_base::sync_with_stdio(false)
#define inf LLONG_MAX
#define l first
#define r second

const int lmt=90001;
int val[lmt];

int main(){
	fastio;

	int n,m,k;
	cin>>n>>m>>k;
	int a[n+1],b[m+1];
	for(int i=1;i<=n;i++) cin>>a[i];
	for(int i=1;i<=m;i++) cin>>b[i];
	sort(a+1,a+n+1);
	sort(b+1,b+m+1);
	ll sum=0;
	for(int i=1;i<=n;i++){
		if(a[i]<k){
			cout<<"Impossible"<<endl;
			return 0;
		}
		sum+=a[i];
	}

	for(int i=1;i<lmt;i++) val[i]=-1;

	for(int i=1;i<=m;i++){
		for(int j=lmt-1;j>=0;j--){
			if(val[j]==-1 || j+b[i]>=lmt) continue;
			val[j+b[i]]=max(val[j+b[i]],val[j]+min(n,b[i]));
		}
	}


	ll ans=inf;

	for(int i=sum;i<lmt;i++){
		if(val[i]<n*k) continue;
		ans=min(ans,i-sum);
	}

	if(ans==inf){
		cout<<"Impossible"<<endl;
		return 0;
	}

	cout<<ans<<endl;
	return 0;
}

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