Submission #683252

#	Time	Username	Problem	Language	Result	Execution time	Memory
683252		maks007	Bank (IZhO14_bank)	C++14	100 / 100	482 ms	180976 KiB

bank

#include "bits/stdc++.h"

using namespace std;

#define int long long

signed main () {
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n, m;
	cin >> n >> m;
	vector<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<int> g[n];
	for(int mask = 0; mask < (1 << m); mask ++) {
		int sum = 0;
		for(int i = 0; i < m; i ++) {
			if(mask & (1 << i)) sum += b[i];
		}
		for(int i = 0; i < n; i ++) {
			if(sum == a[i]) g[i].push_back(mask);
		}
	}
	vector <vector <int>> dp(n+1, vector <int> (1 << m, 0));
	dp[0][0]=1;
	for(int i = 0; i < n; i ++) {
		for(int mask = 0; mask < (1 << m); mask ++) {
			if(dp[i][mask]) {
				for(auto j : g[i]) {
					if(mask & j) continue;
					dp[i+1][mask^j]=1;
				}
			}
		}
	}
	if(count(dp[n].begin(),dp[n].end(),1)) cout << "YES";
	else cout << "NO";
	return 0;
}

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