Submission #493008

#	Time	Username	Problem	Language	Result	Execution time	Memory
493008		Haruto810198	Kitchen (BOI19_kitchen)	C++17	20 / 100	8 ms	336 KiB

kitchen

#include <bits/stdc++.h>

using namespace std;

#define int long long
#define double long double

#define FOR(i, l, r, d) for(int i=(l); i<=(r); i+=(d))
#define szof(x) ((int)(x).size())

#define vi vector<int>
#define pii pair<int, int>

#define F first
#define S second

#define pb push_back
#define eb emplace_back
#define mkp make_pair

const int INF = INT_MAX;
const int LNF = INF*INF;
const int MOD = 1000000007;
const int mod = 998244353;
const double eps = 1e-12;

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")

const int MAX = 4810;
const int C = 300;

int n, m, lim; // meals, chefs, required chefs
int meal[MAX], chef[MAX], meal_sum;
// bool dp[MAX][MAX]; // dp(chefs)[sum(min(n, chef[j]))][sum(chef[j])]
bool dp[100010];
int res;

signed main(){
	
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	
	cin>>n>>m>>lim;
	FOR(i, 1, n, 1){
		cin>>meal[i];
		meal_sum += meal[i];
	}
	FOR(i, 1, m, 1){
		cin>>chef[i];
	}

	// meal[i] >= lim
	FOR(i, 1, n, 1){
		if(meal[i] < lim){
			cout<<"Impossible"<<'\n';
			return 0;
		}
	}

	// dp
	dp[0] = 1;
	FOR(i, 1, m, 1){
		for(int j = i*C; j>=0; j--){
			dp[j + chef[i]] |= dp[j];
		}
		/*
		FOR(j, 0, 20, 1){
			cerr<<dp[j]<<" ";
		}
		cerr<<endl;
		*/
	}
	
	res = INF;
	FOR(j, meal_sum, m*C, 1){
		if(dp[j]) res = min(res, j - meal_sum);
	}
	
	if(res == INF) cout<<"Impossible"<<'\n';
	else cout<<res<<'\n';
	
	return 0;

}

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