Submission #679608

#	Time	Username	Problem	Language	Result	Execution time	Memory
679608		42kangaroo	Bank (IZhO14_bank)	C++17	100 / 100	105 ms	16804 KiB

bank

//
// Created by 42kangaroo on 08/01/2023.
//
#include "bits/stdc++.h"

using namespace std;

#define int long long

signed main() {
	int n, m;
	cin >> n >> m;
	vector<int> a(n);
	vector<int> 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, {-1, -1});
	dp[0] = {0, a[0]};
	for (int i = 1; i < 1 << m; ++i) {
		for (int j = 0; j < m; ++j) {
			if (i & 1 << j) {
				if (dp[i^(1<<j)].first != -1) {
					if (dp[i^(1<<j)].second > b[j]) {
						dp[i]= {dp[i^(1<<j)].first, dp[i^(1<<j)].second - b[j]};
					}
					if (dp[i^(1<<j)].second == b[j]) {
						if (dp[i^(1<<j)].first == n - 1) {
							cout << "YES\n";
							return 0;
						}
						dp[i] = {dp[i^(1<<j)].first+1, a[dp[i^(1<<j)].first+1]};
					}
				}
			}
		}
	}
	cout << "NO\n";
}

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