Submission #681920

#	Time	Username	Problem	Language	Result	Execution time	Memory
681920		Markomafko972	Bank (IZhO14_bank)	C++14	100 / 100	123 ms	8616 KiB

bank

#include <bits/stdc++.h>
#define X first
#define Y second
#define pb push_back
#define pii pair<int, int>
typedef long long ll;
using namespace std;

const int MOD = 1e9 + 7;
const ll INF = 1e18;
const int OFF = (1 << 20);

int n, m;
int a[22];
int b[22];

pair<int, int> dp[(1 << 20)+5];

int main () {

	ios_base::sync_with_stdio(false);
	cin.tie(0);
	
	cin >> n >> m;
	for (int i = 0; i < n; i++) cin >> a[i];
	for (int i = 0; i < m; i++) cin >> b[i];

	for (int mask = 0; mask < (1 << m); mask++) {
		int pos = dp[mask].X;
		int kol = dp[mask].Y;
		if (pos == n) {
			cout << "YES";
			return 0;
		}
		
		for (int i = 0; i < m; i++) {
			if ((mask&(1 << i)) == 0) {
				if (kol+b[i] > a[pos]) continue;
				
				if (kol+b[i] == a[pos]) dp[mask|(1 << i)] = max(dp[mask|(1 << i)], {pos+1, 0});
				else dp[mask|(1 << i)] = max(dp[mask|(1 << i)], {pos, kol+b[i]});
			}
		}
	}
	
	cout << "NO";

	return 0;
}

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