Submission #1089466

#TimeUsernameProblemLanguageResultExecution timeMemory
1089466vjudge1Bank (IZhO14_bank)C++98
0 / 100
2 ms348 KiB
#include <iostream>
#include <vector>
#include <algorithm>
#include <bitset>

int main() {
    int n, m;
    std::cin >> n >> m;

    std::vector<int> valores(n);
    std::vector<int> notas(m);

    for (int i = 0; i < n; ++i) {
        std::cin >> valores[i];
    }

    for (int i = 0; i < m; ++i) {
        std::cin >> notas[i];
    }

    std::vector<int> residual(1 << m, -1);
    std::vector<int> cobertos(1 << m, -1);

    residual[0] = 0;
    cobertos[0] = 0;

    bool possivel = false;

    for (int s = 0; s < (1 << m); ++s) {
        for (int p = 0; p < m; ++p) {
            if ((s & (1 << p)) == 0) {
                continue;
            }

            int ant = s & ~(1 << p);

            // Verifica se o valor anterior é válido
            if (cobertos[ant] == -1) {
                continue;
            }

            int novo = residual[ant] + notas[p];

            if (cobertos[ant] < 0 || cobertos[ant] >= n) {
                continue;
            }

            int alvo = valores[cobertos[ant]];


            if (novo < alvo) {
                cobertos[s] = cobertos[ant];
                residual[s] = novo;
            } else if (novo == alvo) {
                if (cobertos[ant] + 1 < n) {
                    cobertos[s] = cobertos[ant] + 1;
                    residual[s] = 0;
                }
            }
        }

        if (cobertos[s] == n) {
            possivel = true;
        }
    }

    if (possivel) {
        std::cout << "YES" << std::endl;
    } else {
        std::cout << "NO" << std::endl;
    }

    return 0;
}
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