제출 #794625

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
794625		nguyennehehe	은행 (IZhO14_bank)	C++14	0 / 100	2 ms	340 KiB

bank

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

const int N = 20;

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

void sub1() {
  bool good = false;
  for (int s = 1; s < (1 << m); ++s) {
    int sum = 0;
    for (int i = 0; i < m; ++i) {
      if (s >> i & 1) sum += b[i];
    }

    good |= sum == a[0];
  }

  cout << (good ? "YES" : "NO");
}

signed main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  freopen("bank.in", "r", stdin);
  freopen("bank.out", "w", stdout);

  cin >> n >> m;
  for (int i = 0; i < n; ++i) cin >> a[i];
  for (int i = 0; i < m; ++i) cin >> b[i];
  if (n == 1) sub1();
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'int main()':
bank.cpp:25:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |   freopen("bank.in", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |   freopen("bank.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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