Submission #1107504

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107504		vjudge1	Bank (IZhO14_bank)	C++17	71 / 100	1084 ms	6800 KiB

bank

#include <bits/stdc++.h>

using namespace std;

#define nl '\n'
#define pb push_back

const int N = 1e5 + 1;
int n, m, a[21], b[21];
vector<int> mp[1001];
bool ch;

void rec(int i, int sum)
{
    if (i == n)
    {
        cout << "YES\n";
        exit(0);
    }
    for (int x : mp[a[i]])
        if (sum + x == (sum | x))
            rec(i + 1, sum + x);
}

void solve()
{
    cin >> n >> m;
    for (int i = 0; i < n; ++i)
        cin >> a[i];
    for (int j = 0; j < m; ++j)
        cin >> b[j];
    for (int mask = 0; mask < (1 << m); ++mask)
    {
        int sum = 0, x = mask, id = 0;
        while (x)
        {
            if (x & 1)
                sum += b[id];
            ++id;
            x >>= 1;
        }
        if (sum <= 1000)
            mp[sum].pb(mask);
    }
    rec(0, 0);
    cout << "NO\n";
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    int T = 1;
    // cin >>T;
    while (T--)
        solve();
}

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