Submission #688488

#	Time	Username	Problem	Language	Result	Execution time	Memory
688488		stanislavpolyn	Kitchen (BOI19_kitchen)	C++17	31 / 100	1086 ms	340 KiB

kitchen

#include <bits/stdc++.h>

#define fr(i, a, b) for (int i = (a); i <= (b); ++i)
#define rf(i, a, b) for (int i = (a); i >= (b); --i)
#define fe(x, y) for (auto& x : y)

#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define mt make_tuple

#define all(x) (x).begin(), (x).end()
#define pw(x) (1LL << (x))
#define sz(x) (int)(x).size()

using namespace std;

mt19937_64 rng(228);

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template <typename T>
using oset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define fbo find_by_order
#define ook order_of_key

template <typename T>
bool umn(T& a, T b) {
    return a > b ? a = b, 1 : 0;
}
template <typename T>
bool umx(T& a, T b) {
    return a < b ? a = b, 1 : 0;
}

using ll = long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
template <typename T>
using ve = vector<T>;

const int N = 305;

int n, m, k, sumA;
int a[N], b[N];

int main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
    ios::sync_with_stdio(0);
    cin.tie(0);
#endif

    cin >> n >> m >> k;

    fr (i, 1, n) {
        cin >> a[i];

        if (a[i] < k) {
            cout << "Impossible\n";
            return 0;
        }
        sumA += a[i];
    }
    fr (i, 1, m) {
        cin >> b[i];
    }

    int best = 2e9;
    fr (mask, 0, pw(m) - 1) {
        int sum = 0;
        int sum2 = 0;
        fr (i, 1, m) {
            if (mask & pw(i - 1)) {
                sum += b[i];
                sum2 += min(n, b[i]);
            }
        }

        if (sum >= sumA && sum2 >= n * k) {
            umn(best, sum - sumA);
        }
    }

    if (best == 2e9) {
        cout << "Impossible\n";
    } else {
        cout << best << "\n";
    }

    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 22 / 22
• Subtask 3: 0 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 28