Submission #962949

#	Time	Username	Problem	Language	Result	Execution time	Memory
962949		raspy	Bank (IZhO14_bank)	C++14	19 / 100	109 ms	1464 KiB

bank

#include <iostream>

using namespace std;

int a[25];
int b[25];
bool o[25][(1<<20)+1];

void dfs(int n, int m, int ix, int ob)
{
	// cout << ix << " " << ob << " " << a[ix] << "\n";
	if (ix == n)
	{
		cout << "YES\n";
		exit(0);
	}
	if (ob == ((1<<m)-1))
		return;
	if (a[ix] < 0)
		return;
	if (o[ix][ob])
		return;
	if (a[ix] == 0)
		dfs(n, m, ix+1, ob);
	for (int i = 0; i < m; i++)
		if (((1<<i)&ob) == 0)
		{
			a[ix]-=b[i];
			dfs(n, m, ix, ob|(1<<i));
			a[ix]+=b[i];
		}
	o[ix][ob] = 1;
}

int main()
{
	int n, m;
	cin >> n >> m;
	for (int i = 0; i < n; i++)
		cin >> a[i];
	for (int i = 0; i < m; i++)
		cin >> b[i];
	dfs(n, m, 0, 0);
	cout << "NO" << "\n";
	return 0;
}

• Subtask 1: 19 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29