Submission #1196484

#	Time	Username	Problem	Language	Result	Execution time	Memory
1196484		mkrtich_2010_	Bank (IZhO14_bank)	C++20	100 / 100	481 ms	80652 KiB

bank

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m; cin >> n >> m;
    vector<int> a(n);
    vector<int> b(m);
    vector<vector<bool>> dp(1 << m, vector<bool>(n));
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < m; i++) cin >> b[i];
    vector<vector<int>> c(1001);
    for (int i = 1; i < (1 << m); i++) {
        int sum = 0;
        for (int j = 0; j < m; j++) {
            if (i & (1 << j)) {
                sum += b[j];
            }
        }
        if (sum <= 1000) c[sum].push_back(i);
    }
    for (auto i : c[a[0]]) {
        dp[i][0] = 1;
    }
    for (int i = 0; i < (1 << m); i++) {
        for (int j = 0; j < n - 1; j++) {
            if (dp[i][j] == 0) continue;
            for (int k : c[a[j + 1]]) {
                if (i & k) continue;
                dp[i | k][j + 1] = 1;
            }
        }
        if (dp[i][n - 1] == 1) {
            cout << "YES" << endl;
            return 0;
        }
    }
    cout << "NO" << endl;
}

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