Submission #501416

#	Time	Username	Problem	Language	Result	Execution time	Memory
501416		IOI_champion_in_1980	Bank (IZhO14_bank)	C++14	0 / 100	1091 ms	332 KiB

bank

#include <bits/stdc++.h>
#include <math.h>
typedef long long ll;
using namespace std;
ll i, j, t, a, n, m, b, c, d, f, g;
int main()
{
    ios::sync_with_stdio(0);
	cin.tie(0);

	cin>>n>>m;
	map <int, int> mpn; 
	vector <int> vm(m);
	
	for (a=1; a<=n; a++)
	{
		cin>>c;
		mpn[c]=a;
	}
	for (a=0; a<m; a++)
	{
		cin>>vm[a];
	}
	if (n>m)
	{
		cout<<"NO"<<endl;
		return 0;
	}
	
	vector <int> vc(m);
	set<int> s;
	for (a=0; a<m; a++) vc[a]=a;
	do
	{
		s.clear();
		int c=0, jem=0;
		for (a=0; a<m; a++)
		{
			jem=jem+vm[vc[a]];
			if (mpn[jem]!=0 and !s.count(mpn[jem]))
			{
				s.insert(mpn[jem]);
				c++;
				jem=0;
			}	
		}
		if (c==n)
		{
			cout<<"YES"<<endl;
			return 0;
		}
	}
	while(next_permutation(vc.begin(), vc.end()));
	cout<<"NO"<<endl;
}
/*
1 5
8
4 2 5 1 3
*/

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