Submission #1012914

#	Time	Username	Problem	Language	Result	Execution time	Memory
1012914		DaciejMaciej	Bank (IZhO14_bank)	C++17	100 / 100	75 ms	8792 KiB

bank

#include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// #include <ext/rope>

using namespace std;
// using namespace __gnu_pbds;

typedef long long ll;
typedef unsigned long long ull;
typedef unsigned int uint;

typedef vector<int> VI;
typedef vector<vector<int>> VVI;
typedef vector<long long> VL;
typedef vector<vector<long long>> VVL;

typedef vector<char> VC;
typedef vector<vector<char>> VVC;
typedef vector<bool> VB;
typedef vector<vector<bool>> VVB;

typedef vector<double> VD;
typedef vector<vector<double>> VVD;

typedef pair<int, int> PII;
typedef pair<long long, long long> PLL;
typedef vector<pair<int, int>> VPI;
typedef vector<pair<long long, long long>> VPL;

#define LINE '\n'
#define SPACE ' '
#define PB push_back
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define ALL(x) x.begin(), x.end()
#define RALL(x) x.rbegin(), x.rend()

template <class T>
void maxi(T &a, T b)
{
    a = max(a, b);
}

template <class T>
void mini(T &a, T b)
{
    a = max(a, b);
}

ll binpow(ll a, ll b, ll mod)
{
    ll res = 1;
    while (b > 0)
    {
        if (b & 1)
        {
            res = (res * a) % mod;
        }
        a = (a * a) % mod;
        b >>= 1;
    }

    return res;
}

// zero indexed
template <class T>
struct segtree
{
    const T def = 0;
    int n;
    vector<T> seg;

    segtree(int _size) : n(_size), seg(2 * _size, def) {}

    T merge(T a, T b)
    {
        return max(a, b);
    }
    void update(int pos, T val)
    {
        for (seg[pos += n] = val; pos /= 2;)
        {
            seg[pos] = merge(seg[pos * 2], seg[pos * 2 + 1]);
        }
    }
    T query(int l, int r)
    { // get [l, r)
        T a = def, b = def;
        for (l += n, r += n; l < r; l /= 2, r /= 2)
        {
            if (l % 2)
                a = merge(a, seg[l++]);
            if (r % 2)
                b = merge(b, seg[--r]);
        }
        return merge(a, b);
    }
};

const int MOD = 1e9 + 7;

void solve()
{
    int n, m;
    cin >> n >> m;


    VI a(n), b(m);
    VI dp(1 << m, -1), sleft(1 << m, -1);

    FOR(i, 0, n)
    {
        cin >> a[i];
    }

    FOR(i, 0, m)
    {
        cin >> b[i];
    }

    dp[0] = 0;
    sleft[0] = 0;

    for (int s = 0; s < (1 << m); s++)
    {
        for (int j = 0; j < m; j++)
        {
            if ((s & (1 << j)) == 0)
            {
                continue;
            }

            int prev = s & ~(1 << j);
            int prev_ct = dp[prev];
            if (prev_ct == -1)
            {
                continue;
            }

            int money = sleft[prev] + b[j];
            if (a[prev_ct] == money)
            {
                dp[s] = prev_ct + 1;
                sleft[s] = 0;
            }
            else if (money < a[prev_ct])
            {
                dp[s] = prev_ct;
                sleft[s] = money;
            }
        }

        if (dp[s] == n)
        {
            cout << "YES" << LINE;
            return;
        }
    }

    cout << "NO" << LINE;
}

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

    int t = 1;
    // cin >> t;

    while (t--)
        solve();
}

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