제출 #1268227

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1268227		puc_player	은행 (IZhO14_bank)	C++20	100 / 100	94 ms	8624 KiB

bank

#include <bits/stdc++.h>
using namespace std;
int N, M;
vector<int> salary;
vector<int> banknotes;
vector<pair<int, int>> dp;
vector<vector<int>> candidates;

void func()
{
    dp.assign(1 << M, {-1, -1});
    dp[0] = {0, 0};
    for (int mask = 1; mask < (1 << M); mask++)
    {
        for (int i = 0; i < M; i++)
        {
            if (!(mask & (1 << i)))
                continue;
            auto [lastIdx, lastSum] = dp[mask ^ (1 << i)];
            if (lastIdx == -1)
                continue;
            lastSum += banknotes[i];
            if (lastSum < salary[lastIdx])
            {
                dp[mask] = {lastIdx, lastSum};
            }
            else if (lastSum == salary[lastIdx])
            {
                dp[mask] = {lastIdx + 1, 0};
            }
        }
        if (dp[mask].first == N)
        {
            cout << "YES\n";
            return;
        }
    }
    cout << "NO\n";
}

int main()
{
    cin >> N >> M;
    salary.resize(N);
    banknotes.resize(M);

    for (int i = 0; i < N; ++i)
        cin >> salary[i];
    for (int i = 0; i < M; ++i)
        cin >> banknotes[i];
    func();
    return 0;
}

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