Submission #925638

#	Time	Username	Problem	Language	Result	Execution time	Memory
925638		vjudge1	Kitchen (BOI19_kitchen)	C++17	51 / 100	6 ms	348 KiB

kitchen

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")

#include<bits/stdc++.h>	

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()                 
#define sz(a) (int)a.size()
#define s second
#define f first
 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
     
vector<pii> rid = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}};
vector<pii> dir = {{-1, -1}, {-1, 1}, {1, -1}, {1, 1}};
 
const int N = 2e5 + 1, mod = 998244353;

const ll inf = 1e9;
 
double eps = 1e-15;
                                                
bool flg = 0;

void slv() {
	int n, m, k;
	cin >> n >> m >> k;
	int a[n], v = 0;
	for (int i = 0; i < n; i++) {
		cin >> a[i];
		v += a[i];
		if (a[i] < k) {
			cout << "Impossible";
			return;
		}
	}
	int b[m];
	for (int i = 0; i < m; i++) cin >> b[i];
	if (k == 1) {
		bitset<N> s;
		s[0] = 1;
		for (int i = 0; i < m; i++) 
			s |= s << b[i];
		for (int i = v; i < N; i++) {
			if (s[i]) {
				cout << i - v;
				return;
			}
		}
		cout << "Impossible";
		return;
	}
	int mn = inf;
	for (int msk = 0; msk < (1 << m); msk++) {
		int sum = 0;
		vector<int> s;
		for (int i = 0; i < m; i++) {
			if (msk >> i & 1) {
			 	s.push_back(b[i]);
			 	sum += b[i];
			}
		}
		if (sz(s) < k || sum >= mn || sum < v) continue;
		bool ok = 1;
		for (int i = 0; i < n; i++) {
			sort(all(s));
			if (!s[sz(s) - k]) {
				ok = 0;
				break;
			}
			for (int j = sz(s) - k; j < sz(s); j++) 
				s[j]--;
		}
		if (ok) mn = sum;
	}
	if (mn == inf) cout << "Impossible";
	else cout << mn - v;
}
 
main() {
	//freopen("rsq.in", "r", stdin);                                                                                     
	//freopen("rsq.out", "w", stdout);                                                                                     
	ios_base::sync_with_stdio(0);	                                                                                       
	cin.tie(0);
	int tp = 1;
	if (flg) cin >> tp;
	while (tp--) {  	
		slv();
	}
}
//wenomechainsama                                             

Compilation message (stderr)

kitchen.cpp:86:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   86 | main() {
      | ^~~~

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