Submission #1037377

#	Time	Username	Problem	Language	Result	Execution time	Memory
1037377		vjudge1	Bank (IZhO14_bank)	C++17	100 / 100	82 ms	8648 KiB

bank

#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define ld long double
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pld pair<ld, ld>
#define pb push_back
#define fi first
#define se second
#define debug(x) cout << #x << " => " << x << endl
#define all(x) x.begin(),x.end()

pii dp[(1<<20) + 10];

int main()
{
	ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	int n,m;cin>>n>>m;
	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];
	sort(a,a+n);

	for(int mask=0;mask<(1<<m);mask++)
	{
		for(int i=0;i<m;i++)
		{
			if((mask&(1<<i))!=0)
			{
				dp[mask]=max(dp[mask],{dp[(mask^(1<<i))].fi,dp[(mask^(1<<i))].se+b[i]});
				if(dp[mask].fi<n && dp[mask].se==a[dp[mask].fi]) dp[mask]={dp[mask].fi+1,0};
			}
		}
	}
	// for(int mask=0;mask<(1<<m);mask++) cout<<mask<<": "<<dp[mask].fi<<' '<<dp[mask].se<<'\n';cout<<'\n';
	if(dp[(1<<m)-1].fi!=n) cout<<"NO\n";
	else cout<<"YES\n";
	return 0;
}

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