답안 #768087

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
768087	2023-06-27T12:37:43 Z	raysh07	은행 (IZhO14_bank)	C++17	컴파일 오류	0 ms	0 KB

bank

#include <bits/stdc++.h>
using namespace std;
//#define int long long
#define INF (int)1e18

mt19937_64 RNG(chrono::steady_clock::now().time_since_epoch().count());

void Solve() 
{
    int n, m; cin >> n >> m;
    
    vector <int> a(n), b(m);
    for (auto &x : a) cin >> x;
    for (auto &x : b) cin >> x;
    vector <int> adj(1 << m);
    
    for (int i = 0; i < (1 << m); i++){
        for (int j = 0; j < m; j++){
            if (i >> j & 1) adj[i].push_back(i ^ (1 << j));
        }
    }
    
    int s1 = 0;
    vector <int> s(1 << m, 0);
    for (int i = 1; i < (1 << m); i++){
        for (int j = 0; j < m; j++){
            if (i >> j & 1) s[i] += b[j];
        }
    }
    
    vector <bool> can(1 << m, false);
    can[0] = true;
    for (auto x : a){
        s1 += x;
        vector <bool> nc(1 << m, false);
        
        for (int i = 0; i < (1 << m); i++){
            nc[i] = can[i];
            
            for (int j : adj[i]){
                {
                    int mask = i ^ (1 << j);
                    if (nc[mask] && s[mask] >= s1 - x && s[i] <= s1){
                        nc[i] = true;
                    }
                }
            }
            
            if (nc[i] && s[i] == s1) can[i] = true;
            else can[i] = false;
        }
    }
    
    for (auto x : can) if (x == true){
        cout << "YES\n";
        return;
    }
    cout << "NO\n";
}

int32_t main() 
{
    auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
 //   cin >> t;
    for(int i = 1; i <= t; i++) 
    {
        //cout << "Case #" << i << ": ";
        Solve();
    }
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
    cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n"; 
    return 0;
}

Compilation message

bank.cpp: In function 'void Solve()':
bank.cpp:19:36: error: request for member 'push_back' in 'adj.std::vector<int>::operator[](((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'}
   19 |             if (i >> j & 1) adj[i].push_back(i ^ (1 << j));
      |                                    ^~~~~~~~~
bank.cpp:40:31: error: 'begin' was not declared in this scope
   40 |             for (int j : adj[i]){
      |                               ^
bank.cpp:40:31: note: suggested alternatives:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from bank.cpp:1:
/usr/include/c++/10/valarray:1224:5: note:   'std::begin'
 1224 |     begin(const valarray<_Tp>& __va)
      |     ^~~~~
In file included from /usr/include/c++/10/filesystem:46,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:129,
                 from bank.cpp:1:
/usr/include/c++/10/bits/fs_dir.h:549:3: note:   'std::filesystem::__cxx11::begin'
  549 |   begin(recursive_directory_iterator __iter) noexcept
      |   ^~~~~
bank.cpp:40:31: error: 'end' was not declared in this scope
   40 |             for (int j : adj[i]){
      |                               ^
bank.cpp:40:31: note: suggested alternatives:
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from bank.cpp:1:
/usr/include/c++/10/valarray:1244:5: note:   'std::end'
 1244 |     end(const valarray<_Tp>& __va)
      |     ^~~
In file included from /usr/include/c++/10/filesystem:46,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:129,
                 from bank.cpp:1:
/usr/include/c++/10/bits/fs_dir.h:554:3: note:   'std::filesystem::__cxx11::end'
  554 |   end(recursive_directory_iterator) noexcept
      |   ^~~