제출 #1136362

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1136362		classic	은행 (IZhO14_bank)	C++20	100 / 100	95 ms	8520 KiB

bank

// mode: short code
/*
practicing..
*/
#include<bits/stdc++.h>

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);

    int n, m;
    std::cin >> n >> m;

    std::vector<int> a(n);
    for (int i = 0; i < n; i++) {
        std::cin >> a[i];
    }
    std::vector<int> b(m);
    for (int i = 0; i < m; i++) {
        std::cin >> b[i];
    }

    std::vector<int> cnt(1 << m, -1), rem(1 << m, -1);
    cnt[0] = 0;
    rem[0] = 0;
    for (int i = 1; i < (1 << m); i++) {
        for (int j = 0; j < m; j++) {
            if (!(i & (1 << j))) {
                continue;
            }

            int p = (i ^ (1 << j));
            if (cnt[p] == -1) {
                continue;
            }

            int nxt = rem[p] + b[j];
            int need = a[cnt[p]];

            if (nxt < need) {
                cnt[i] = cnt[p];
                rem[i] = nxt;
            } else if (nxt == need) {
                cnt[i] = cnt[p] + 1;
                rem[i] = 0;
            }
        }

        if (cnt[i] == n) {
            std::cout << "YES";
            return 0;
        }
    }

    std::cout << "NO";
    return 0;
}

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