Submission #898557

#	Time	Username	Problem	Language	Result	Execution time	Memory
898557		vanea	Bank (IZhO14_bank)	C++14	100 / 100	98 ms	8972 KiB

bank

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

const int mxN = 20;

pair<int, int> dp[(1 << mxN) + 5];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    vector<int> v(n), bnotes(m);
    for(int i = 0; i < n; i++) {
        cin >> v[i];
    }
    for(int i = 0; i < m; i++) {
        cin >> bnotes[i];
    }
    for(int mask = 1; mask < (1 << m); mask++) {
        for(int i = 0; i < m; i++) {
            if(mask & (1 << i)) {
                int prev = mask ^ (1 << i);
                int sc = dp[prev].second;
                pair<int, int> best = dp[prev];
                if(sc + bnotes[i] == v[dp[prev].first]) {
                    best.first++;
                    best.second = 0;
                }
                else {
                    best.second += bnotes[i];
                }
                dp[mask] = max(best, dp[mask]);
            }
        }
    }
    cout << (dp[(1 << m) - 1].first == n ? "YES" : "NO");
}

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