Submission #679275

#	Time	Username	Problem	Language	Result	Execution time	Memory
679275		Hacv16	Bank (IZhO14_bank)	C++17	27 / 100	1094 ms	7336 KiB

bank

#include<bits/stdc++.h>
using namespace std;

const int MAX = 21;
const int MAXM = 30005;
const int INF = 0x3f3f3f3f;

int n, m, a[MAX], b[MAX];
bool dp[MAX][1 << MAX];
vector<int> g[MAXM];

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n >> m;

    for(int i = 1; i <= n; i++) cin >> a[i];
    for(int i = 0; i < m; i++) cin >> b[i];

    for(int mask = 0; mask < (1 << m); mask++){
        int cur = 0;

        for(int i = 0; i < m; i++)
            if(mask & (1 << i)) cur += b[i];

        g[cur].push_back(mask);   
    }

    dp[0][0] = true;

    for(int i = 1; i <= n; i++){
        for(int mask = 0; mask < (1 << m); mask++){
            int curVal = a[i];

            for(auto sub : g[curVal])
                dp[i][mask] |= dp[i - 1][mask ^ sub];
        }
    }

    bool pos = false;

    for(int mask = 0; mask < (1 << m); mask++)
        pos |= dp[n][mask];

    cout << (pos ? "YES" : "NO") << '\n';

    exit(0);
}

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