제출 #1089115

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1089115		vjudge1	은행 (IZhO14_bank)	C++17	0 / 100	3 ms	348 KiB

bank

/**
 *    data : 09.07.2024  
 *     
**/
#include <bits/stdc++.h>
// #include "algo/turnikmen.h"

using namespace std;


// #define int long long
#define bitt __builtin_popcountll
#define bitzero __builtin_clz

// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

void fReopen () {
        #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
        #endif
}


mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 


signed main (/*  time : 9:17 AM   */) {
        ios_base::sync_with_stdio(false);
        cin.tie(nullptr);
        cout.tie(nullptr);

        fReopen();

        int n, m; cin >> n >> m; vector<int> a(n), b(m); for (auto &x : a) cin >> x; for (auto &x : b) cin >> x;
        
        for (int mask = 0; mask < (1 << m); mask++) {
                int res = 0;
                for (int i = 0; i < m; i++) {
                        if (mask >> i & 1) res += b[i];
                }
                if (res == a[0]) {
                        cout << "YES\n";
                        return 0;
                }
        }
        cout << "NO\n";


}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'void fReopen()':
bank.cpp:20:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |         freopen("input.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:21:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |         freopen("output.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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