Submission #984507

#	Time	Username	Problem	Language	Result	Execution time	Memory
984507		OAleksa	Kitchen (BOI19_kitchen)	C++14	29 / 100	122 ms	2904 KiB

kitchen

#include <bits/stdc++.h>
#define f first
#define s second
using namespace std;
const int N = 310;
int n, m, k, a[N], b[N];
pair<int, int> dp[N * N], ndp[N * N];
int dp2[N * N], dp3[N * N];
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int tt = 1;
  //cin >> tt;
  while (tt--) {
  	cin >> n >> m >> k;
  	for (int i = 1;i <= n;i++)
  		cin >> a[i];
  	sort(a + 1, a + n + 1);
  	for (int i = 1;i <= m;i++)
  		cin >> b[i];
  	sort(b + 1, b + m + 1);
  	if (m < k || a[1] < k)
  		cout << "Impossible";
  	else {
  		dp[0] = {1, 0};
			for (int i = 1;i <= m;i++) {
				for (int j = 0;j < N * N;j++) {
					if (j < b[i]) {
						dp3[j] = dp2[j];
						ndp[j] = dp[j];
					}
					else {	
						if (dp[j - b[i]].f) {
							ndp[j] = dp[j - b[i]];
							ndp[j].s += 1;
						}
						if (dp[j].f && dp[j].s > ndp[j].s)
							ndp[j] = dp[j];
						dp3[j] = dp2[j]; 
						if ((j >= n * k && j - b[i] < n * k && ndp[j].s >= k) || (ndp[j].s >= k && dp[j - b[i]].s < k && j >= n * k)) {
							if (ndp[j].f)
								dp3[j] = 1;
						}
						dp3[j] = (dp3[j] | dp2[j - b[i]]);
					}
				}
				for (int i = 0;i < N * N;i++) {
					dp[i] = ndp[i], ndp[i] = {0, 0};
					dp2[i] = dp3[i], dp3[i] = 0;
				}
			}
			int s = 0, ans = 1e9;
			for (int i = 1;i <= n;i++)
				s += a[i];
			for (int i = N * N - 1;i >= s;i--) {
				if (dp2[i])
					ans = i - s;
			}
			if (ans == 1e9)
				cout << "Impossible\n";
			else
				cout << ans << '\n';
  	}
  }
  return 0; 
}

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