제출 #879808

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
879808		The_Samurai	은행 (IZhO14_bank)	C++17	44 / 100	1 ms	356 KiB

bank

// I stand with PALESTINE




//#pragma GCC optimize("Ofast,O3")
//#pragma GCC target("avx,avx2")
#include "bits/stdc++.h"

using namespace std;
using ll = long long;

void solve() {
    int n, m;
    cin >> m >> n;
    vector<int> a(n), b(m);
    for (int &x: b) cin >> x;
    for (int &x: a) cin >> x;
    sort(a.rbegin(), a.rend());
    sort(b.rbegin(), b.rend());
    for (int i = 0; i < m; i++) {
        vector<int> came(b[i] + 1, -1);
        came[0] = 0;
        for (int j = 0; j < a.size(); j++) {
            for (int x = b[i]; x >= a[j]; x--) {
                if (came[x] == -1 and came[x - a[j]] != -1) {
                    came[x] = a[j];
                }
            }
        }
        if (came[b[i]] == -1) {
            cout << "NO";
            return;
        }
        int x = b[i];
        while (x != 0) {
            a.erase(find(a.begin(), a.end(), came[x]));
            x -= came[x];
        }
//        for (int x: a) cout << x << ' ';
//        cout << endl;
    }
    cout << "YES";
}

int main() {
    cin.tie(0)->sync_with_stdio(false);
#ifdef sunnatov
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    int q = 1;
//    cin >> q;
    while (q--) {
        solve();
        cout << '\n';
    }
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'void solve()':
bank.cpp:24:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |         for (int j = 0; j < a.size(); j++) {
      |                         ~~^~~~~~~~~~

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