제출 #1087782

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1087782		quangminh412	은행 (IZhO14_bank)	C++14	19 / 100	57 ms	456 KiB

bank

#include <bits/stdc++.h>
using namespace std;

/*
  John Watson
  https://codeforces.com/profile/quangminh98

  Mua Code nhu mua Florentino !!
*/

#define faster() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define ll long long

const int maxn = 30;

int n, m;
int a[maxn], b[maxn];

void solve_1()
{
	for (int mask = 0; mask < (1 << m); mask++)
	{
		int sum = 0;
		for (int i = 0; i < m; i++)
			if (mask >> i & 1)
				sum += b[i];
		if (sum == a[1])
		{
			cout << "YES\n";
			return;
		}
	}
	cout << "NO\n";
}

signed main()
{
	if (fopen("test.inp", "r"))
	{
		freopen("test.inp", "r", stdin);
		freopen("test.out", "w", stdout);
	}
	faster();
	
	cin >> n >> m;
	for (int i = 1; i <= n; i++) cin >> a[i];
	for (int i = 1; i <= m; i++) cin >> b[i];
	
	if (n == 1)
	{
		solve_1();
		return 0;
	}
	
	

	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'int main()':
bank.cpp:40:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |   freopen("test.inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:41:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |   freopen("test.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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