Submission #548918

#	Time	Username	Problem	Language	Result	Execution time	Memory
548918		Hanksburger	Bank (IZhO14_bank)	C++17	100 / 100	160 ms	2416 KiB

bank

#include <bits/stdc++.h>
using namespace std;
bool visited[1048580], dp[1048580];
int a[25], b[25], n, m;
bool f(int x)
{
	if (visited[x])
		return dp[x];
	visited[x]=1;
	int index=0, sum=0;
	for (int i=1; i<=m; i++)
		if (x&(1<<(i-1)))
			sum+=b[i];
	for (int i=1; i<=n; i++)
	{
		if (sum<a[i])
		{
			index=i;
			break;
		}
		sum-=a[i];
	}
	if (!index)
	{
		dp[x]=1;
		return 1;
	}
	bool res=0;
	for (int i=1; i<=m; i++)
		if (!(x&(1<<(i-1))) && b[i]<=a[index]-sum)
			res|=f(x|(1<<(i-1)));
	dp[x]=res;
	return res;
}
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> m;
	for (int i=1; i<=n; i++)
		cin >> a[i];
	for (int i=1; i<=m; i++)
		cin >> b[i];
	cout << (f(0)?"YES":"NO");
	return 0;
}

• Subtask 1: 19 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 29 / 29