Submission #1190471

#	Time	Username	Problem	Language	Result	Execution time	Memory
1190471		yellowtoad	Kitchen (BOI19_kitchen)	C++20	100 / 100	114 ms	216180 KiB

kitchen

#include <iostream>
using namespace std;

const int MAXH = 300*305;
long long n, m, k, a[310], b[310], dp[310][MAXH+10], sum;

int main() {
	cin >> n >> m >> k;
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
		if (a[i] < k) {
			cout << "Impossible" << endl;
			return 0;
		}
		sum += a[i];
	}
	for (int i = 1; i <= m; i++) cin >> b[i];
	for (int i = 0; i <= m; i++) for (int j = 0; j <= MAXH; j++) dp[i][j] = -1e18;
	dp[0][0] = 0;
	for (int i = 1; i <= m; i++) {
		for (int j = 0; j <= MAXH; j++) {
			dp[i][j] = dp[i-1][j];
			if (j >= b[i]) dp[i][j] = max(dp[i][j],dp[i-1][j-b[i]]+min(n,b[i]));
		}
	}
	for (int i = sum; i <= MAXH; i++) {
		if (dp[m][i] >= n*k) {
			cout << i-sum << endl;
			return 0;
		}
	}
	cout << "Impossible" << endl;
}

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