Submission #1006727

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006727		thdh__	Bank (IZhO14_bank)	C++17	100 / 100	81 ms	18012 KiB

bank

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")

#pragma GCC target("avx,avx2,fma")
#define ll long long
#define pb push_back
#define eb emplace_back
#define pu push
#define ins insert
#define bruh ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define ff(x,a,b,c) for (auto x=a;x<=b;x+=c)
#define fd(x,a,b,c) for (auto x=a;x>=b;x-=c)
#define int ll

using namespace std;

const int N = 1e6+5;
const int mod = 1e9+7;
int power(int a,int b) {ll x = 1;if (a >= mod) a%=mod; while (b) {if (b & 1) x = x*a % mod;a = a*a % mod;b>>=1;}return x;} 

void solve()
{
	int n,m;
	cin>>n>>m;
	vector<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<pair<int,int>> dp((1<<m),{0,0});
	bool check[1<<m] {false}; check[0] = true;
	for (int mask=0;mask<(1<<m);mask++)
	{
		for (int i=0;i<m;i++)
		{
			if (mask & (1<<i) && check[mask ^ (1<<i)])
			{
				int nmask = mask ^ (1<<i);
				int cur = dp[nmask].second+b[i];
				if (cur==a[dp[nmask].first]) dp[mask] = {dp[nmask].first+1,0}, check[mask] = true;
				else if (cur<a[dp[nmask].first]) dp[mask] = {dp[nmask].first,cur},check[mask] = true;

			}
		}
		if (dp[mask].first==n)
		{
			cout<<"YES"; return;
		}
	}
	cout<<"NO";
}

signed main()
{
	bruh
	int t = 1;
	//cin>>t;
	while (t--)
	{
		solve();
		//cout<<"\n";
	}
}

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