Submission #1114625

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114625		Chinguun	Bank (IZhO14_bank)	C++14	100 / 100	169 ms	8688 KiB

bank

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

#define int long long
const int N = 21;

int n, m, pre[N], b[N], dp[(1 << N)], sum;

signed main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);

	cin >> n >> m;
	for (int i = 0; i < n; i++) {
		cin >> pre[i];
		pre[i] += pre[i - 1];
	}
	for (int i = 0; i < m; i++) {
		cin >> b[i];
	}
	for (int mask = 1; mask < (1 << m); mask++) {
		sum = 0;
		for (int i = 0; i < m; i++) {
			if ((mask & (1 << i))) sum += b[i];
		}
		for (int i = 0; i < m; i++) {
			if ((mask & (1 << i))) {
				int x = dp[mask ^ (1 << i)];
				dp[mask] = max (dp[mask], x + (pre[x] == sum));
			}
		}
	}
	if (dp[(1 << m) - 1] == n) cout << "YES";
	else cout << "NO";
	return 0;
}

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