Submission #501412

#	Time	Username	Problem	Language	Result	Execution time	Memory
501412		IOI_champion_in_1980	Bank (IZhO14_bank)	C++14	0 / 100	3 ms	380 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);

	freopen("bank.in", "r", stdin);
	freopen("bank.out", "w", stdout);

	
	cin>>n>>m;
	vector <int> vn(n);
	vector <int> vm(m);
	for (a=0; a<n; a++)
	{
		cin>>vn[a];
	}
	for (a=0; a<m; a++)
	{
		cin>>vm[a];
	}
	if (n>m)
	{
		cout<<"NO"<<endl;
		return 0;
	}
	
	vector <int> vc(m);
	for (a=0; a<m; a++) vc[a]=a;
	do
	{
		int c=0, jem=0;
		for (a=0; a<m; a++)
		{
			jem=jem+vm[vc[a]];
			if (jem==vn[c])
			{
				jem=0;
				c++;	
			}
			if (jem>vn[c])
			{
				c=0;
				break;	
			}	
		}
		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
*/

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:11:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |  freopen("bank.in", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:12:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  freopen("bank.out", "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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