Submission #464800

#	Time	Username	Problem	Language	Result	Execution time	Memory
464800		Khizri	Kitchen (BOI19_kitchen)	C++17	29 / 100	33 ms	4228 KiB

kitchen

#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define ll long long
#define pb push_back		 
#define F first																 
#define S second 															 
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
#define endl "\n"
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
	if(a>b) swap(a,b);
	if(a==0) return a+b;
	return gcd(b%a,a);
}
ll lcm(ll a,ll b){
	return a/gcd(a,b)*b;
}
bool is_prime(ll n){
	ll k=sqrt(n);
	if(n==2) return true;
	if(n<2||n%2==0||k*k==n) return false;
	for(int i=3;i<=k;i+=2){
		if(n%i==0){
			return false;
		}
	}
	return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=300+5;
int t=1,n,m,k,arr[mxn],b[mxn],sum,SUM=0,x,dp[(int)1e6];
bool q=false;
void solve(){
	cin>>m>>n>>k;
	for(int i=1;i<=m;i++){
		cin>>b[i];
		sum+=b[i];
		if(b[i]<k){
			q=true;
		}
	}
	for(int i=1;i<=n;i++){
		cin>>arr[i];
		SUM+=arr[i];
	}
	if(n<k||SUM<sum){
		q=true;
	}
	if(q){
		cout<<"Impossible"<<endl;
		return;
	}
	memset(dp,-1,sizeof(dp));
	sort(arr+1,arr+n+1);
	dp[0]=0;
	for(int i=1;i<=n;i++){
		for(int x=SUM;x>=arr[i];x--){
			if(dp[x-arr[i]]!=-1){
				if(dp[x]==-1){
					dp[x]=1e7;
				}
				dp[x]=min(dp[x],dp[x-arr[i]]+min(m,arr[i]));
			}
		}
	}
	int ans=1e7;
	for(int i=sum;i<=SUM;i++){
		if(dp[i]>=m*k){
			ans=i-sum;
			break;
		}
	}
	if(ans==1e7){
		cout<<"Impossible"<<endl;
		return;
	}
	cout<<ans<<endl;
}
int main(){
	IOS;
	//cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

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