Submission #821810

#	Time	Username	Problem	Language	Result	Execution time	Memory
821810		OAleksa	Bank (IZhO14_bank)	C++14	100 / 100	105 ms	8544 KiB

bank

#include <bits/stdc++.h>
#define f first
#define s second
using namespace std; 

signed main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int tt = 1;
	//cin >> tt;
	while(tt--) {
		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];
		bool ok = false;
		vector<int> dp(1 << m, -1), o(1 << m);
		dp[0] = 0;
		for(int mask = 1;mask < (1 << m);mask++) {
			for(int i = 0;(1 << i) <= mask;i++) {
				if(!(mask & (1 << i)))
					continue;
				int s = mask ^ (1 << i);
				if(dp[s] == -1)
					continue;
				int sm = o[s] + b[i];
				int sl = a[dp[s]];
				if(sm < sl) {
					dp[mask] = dp[s];
					o[mask] = sm;
				}
				else if(o[s] + b[i] == sl) {
					dp[mask] = max(dp[mask], dp[s] + 1);
					o[mask] = 0;
				}
			}
			ok |= (dp[mask] == n);
		}
		cout << (ok ? "YES" : "NO");
	}
   return 0;
}

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