Submission #115714

#	Time	Username	Problem	Language	Result	Execution time	Memory
115714		mrboorger	Bank (IZhO14_bank)	C++14	71 / 100	1074 ms	384 KiB

bank

#include <bits/stdc++.h>

//#pragma optimize ("-Ofast")
//#pragma comment (linker, "-STACK 99999999")

#define ld long double
#define ll long long
#define F first
#define S second
#define pb push_back
#define mp make_pair
//#define int long long

using namespace std;

const int maxn = 25;

int N;
vector <int> worker;

bool f(int nm, vector <int> a)
{
    if (nm == N)
    {
        return true;
    }
    int n = int(a.size());
    int sum = worker[nm];
    bool flag = false;
    for(int i = 0; i < (1 << n) && !flag; i++)
    {
        int val = 0;
        for(int j = 0; j < n; j++)
        {
            if ((i & (1 << j)) > 0)
            {
                val += a[j];
            }
        }
        if (sum == val)
        {
            vector <int> vc;
            for(int j = 0; j < n; j++)
            {
                if ((i & (1 << j)) == 0)
                {
                    vc.pb(a[j]);
                }
            }
            flag = f(nm + 1, vc);
        }
    }
    return flag;
}

int32_t main()
{
#ifdef LOCAL
//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);
#else

#endif
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int m;
    cin >> N >> m;
    worker.assign(N, 0);
    for(int i = 0; i < N; i++)
    {
        cin >> worker[i];
    }
    vector <int> a(m);
    for(int i = 0; i < m; i++)
    {
        cin >> a[i];
    }
    srand(time(0));
    random_shuffle(a.begin(), a.end());
    random_shuffle(worker.begin(), worker.end());
    if (f(0, a))
    {
        cout << "YES";
    }
    else
    {
        cout << "NO";
    }
    return 0;
}

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