Submission #1077785

#	Time	Username	Problem	Language	Result	Execution time	Memory
1077785		hahahaha	Bank (IZhO14_bank)	C++17	100 / 100	93 ms	8644 KiB

bank

#include<bits/stdc++.h>
using namespace std;
 
const char nl = '\n';
 
signed main() {
	int n;
	int m;
	std::cin >> n >> m;
	int a[n], b[m];
	for (int i = 0; i < n; i ++) cin >> a[i];
	for (int j = 0; j < m; j ++) cin >> b[j];
 
	vector<int> sum(1 << m, -1);
	vector<int> dp(1 << m, -1);
	sum[0] = 0;
	dp[0] = 0;
	for (int s = 0; s < (1 << m); s++) {
		for (int last = 0; last < m; last++) {
			if ((s & (1 << last)) == 0) { continue; }
			int prev = s & ~(1 << last);
			if (dp[prev] == -1) { continue; }
 
			int new_amt = sum[prev] + b[last];
			int curr_target = a[dp[prev]];
			if (new_amt < curr_target) {
				dp[s] = dp[prev];
				sum[s] = new_amt;
			}
			else if (new_amt == curr_target) {
				dp[s] = dp[prev] + 1;
				sum[s] = 0;
			}
		}
		if (dp[s] == n) {
			cout << "YES" << nl;
			return 0;
		}
	}
	cout << "NO" << nl;
}

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