Submission #1133365

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133365		lopkus	Bank (IZhO14_bank)	C++20	71 / 100	1097 ms	31048 KiB

bank

#include <bits/stdc++.h>

#define int long long

using namespace std;

const int MX = 1e5 + 5;

vector<int> inc[MX];

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    vector<int> a(n);
    vector<int> b(m);
    for(int i = 0; i < n; i++) {
        cin >> a[i];
    }
    for(int i = 0; i < m; i++) {
        cin >> b[i];
    }
    vector<int> new_dp((1LL << m), 0);
    for(int bitmask = 0; bitmask < (1LL << m); bitmask++) {
        int sum = 0;
        for(int j = 0; j < m; j++) {
            if(bitmask & (1LL << j)) {
                sum += b[j];
            }
        }
        inc[sum].push_back(bitmask);
    }
    for(auto u : inc[a[0]]) {
        new_dp[u] = 1;
    }
    for(int i = 1; i < n; i++) {
        vector<int> dp((1LL << m), 0);
        for(auto u : inc[a[i]]) {
            for(int j = 0; j < (1LL << m); j++) {
                if((j & u)) {
                    continue;
                }
                dp[u ^ j] |= new_dp[j];
            }
        }
        new_dp = dp;
    }
    int ok = 0;
    for(int i = 0; i < (1LL << m); i++) {
        ok |= new_dp[i];
    }
    cout << (ok? "YES" : "NO");
}

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