Submission #1043896

#	Time	Username	Problem	Language	Result	Execution time	Memory
1043896		SnowRaven52	Bank (IZhO14_bank)	C++17	100 / 100	67 ms	8792 KiB

bank

#include <bits/stdc++.h>

using namespace std;

int main(){
	// freopen("main.in", "r", stdin);
	// freopen(".out", "w", stdout);
    int n, m; cin >> n >> m;
    int a[n], b[m];
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < m; i++) cin >> b[i];
    vector<pair<int,int>> dp((1 << m), make_pair(0, -1));
    dp[0].second = a[0];
    bool works = false;
    pair<int, int> p;
    for (int i = 1; i < (1<<m); i++){
        for (int j = 0; j < m; j++){
            if(i & (1 << j)){
                p = dp[i ^ (1 << j)];
                if(p.second < b[j]) continue;
                p.second -= b[j];
                if(p.second == 0){
                    p.first++;
                    if(p.first == n){
                        works=true;
                        dp[i]=p;
                        break;
                    }
                    p.second = a[p.first];
                }
                if(p.first >= dp[i].first)dp[i] = p;
            }
        }
    }
    if(works) cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
}

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