Submission #133036

#	Time	Username	Problem	Language	Result	Execution time	Memory
133036		E869120	Kitchen (BOI19_kitchen)	C++14	100 / 100	161 ms	106488 KiB

kitchen

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int N, M, K, S, A[1 << 18], B[1 << 18];
int dp[309][90009];

int solve_subtask5() {
	for (int i = 0; i <= M; i++) {
		for (int j = 0; j <= 90000; j++) dp[i][j] = -(1 << 30);
	}
	dp[0][0] = 0;
	for (int i = 0; i < M; i++) {
		for (int j = 0; j <= 90000; j++) {
			if (dp[i][j] == -(1 << 30)) continue;
			dp[i + 1][j] = max(dp[i + 1][j], dp[i][j]);
			dp[i + 1][j + B[i]] = max(dp[i + 1][j + B[i]], dp[i][j] + min(B[i], N));
		}
	}
	for (int i = S; i <= 90000; i++) {
		if (dp[M][i] >= N * K) return i - S;
	}
	return (1 << 30);
}

int main() {
	cin >> N >> M >> K;
	for (int i = 0; i < N; i++) {
		cin >> A[i]; S += A[i];
		if (A[i] < K) {
			cout << "Impossible" << endl;
			return 0;
		}
	}
	for (int i = 0; i < M; i++) cin >> B[i];

	int ans = solve_subtask5();
	if (ans == (1 << 30)) cout << "Impossible" << endl;
	else 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