Submission #1292969

#	Time	Username	Problem	Language	Result	Execution time	Memory
1292969		redminote13pro	Bank (IZhO14_bank)	C++20	19 / 100	1 ms	576 KiB

bank

#include <bits/stdc++.h>
using namespace std;

#define print(a) for(auto x : a){cout << x << " ";}
#define scan(a) for(auto & x : a) {cin >> x;}
#define rall(a) a.rbegin(), a.rend()
#define all(a) a.begin(), a.end()
#define int long long

using ll = long long;
using ull = unsigned long long;
using pii = pair<int, int>;

const ll MOD = 1e9 + 7, INF = 1e18, LOG = 20, N = 1e5 + 5;

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

    vector<int> a(n), b(m);
    scan(a);
    scan(b);

    sort(rall(a));

    multiset<int> st(b.begin(), b.end());

    for (auto s : a) {
        int S = s;
        vector<int> v(st.begin(), st.end());
        int k = v.size();

        vector<int> dp(S + 1, -1);
        dp[0] = -2; 
        for (int i = 0; i < k; i++) {
            int x = v[i];
            for (int sum = S; sum >= x; sum--) {
                if (dp[sum] == -1 && dp[sum - x] != -1) {
                    dp[sum] = i;
                }
            }
        }

        if (dp[S] == -1) { 
            cout << "NO\n";
            return;
        }
        int cur = S;
        while (cur > 0) {
            int ii = dp[cur];
            int x = v[ii];
            st.erase(st.find(x));
            cur -= x;
        }
    }

    cout << "YES\n";
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    solve();

    return 0;
}

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