Submission #1107495

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107495		vjudge1	Bank (IZhO14_bank)	C++17	71 / 100	1075 ms	10160 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[N];
bool ch;

void rec( int i, vector< int >v )
{
    if( i == n )
    {
        cout <<"YES\n";
        exit(0);
    }
    for( int x: mp[a[i]] )
    {
        bool ch1 = true;
        for( int j: v )
            if( (x & j) )
            {
                ch1 = false;
                break;
            }
        if( ch1 )
        {
            v.pb( x );
            rec(i + 1, v);
            v.pop_back();
        }
    }
}

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;
        for( int i = 0; i < m; ++i )
            if( (1 << i) & mask )
                sum += b[i];
        mp[sum].pb( mask );
    }
    rec(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