Submission #1128385

#	Time	Username	Problem	Language	Result	Execution time	Memory
1128385		ImperialALEN	Bank (IZhO14_bank)	C++20	52 / 100	2 ms	584 KiB

bank

#include <bits/stdc++.h> 

#define F first
#define S second 
#define ll long long
#define int long long
#define pb push_back
#define all(x) (x.begin(),x.end())
#define	ios	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);	
 
using namespace std;
  
const ll N = 2e4+7, INF = 1e18 , inf = 1e6, mod = 1e9+7;

int a[22];
int b[22];

int have[N];
vector<int> good(N,-1);

// #pragma GCC optomize ("Ofast")
// #pragma GCC optomize ("unroll-loops")
// #pragma GCC target ("avx,avx2,fma")

signed main(){
    ios;
	int tt=1;
//	cin>>tt;
	while(tt--){
		int n,m;
		cin>>n>>m;
		for(int i=0;i<n;i++)cin>>a[i];
		for(int i=0;i<m;i++)cin>>b[i];
		good[0]=0;
		for(int mask=0;mask<(1<<m);mask++){
			for(int i=0;i<m;i++){
				if((mask & (1<<i))==0){
					int nwmask=mask + (1<<i);
					if(a[good[mask]]==-1)continue;
					int use=have[mask]+b[i];
					int chel=a[good[mask]];
					if(use<chel){
						good[nwmask]=good[mask];
						have[nwmask]=use;
					}else if(use==chel){
						good[nwmask]=good[mask]+1;
						have[nwmask]=0;
					}
				}
			}
		}
		for(int mask=0;mask<(1<<m);mask++){
			if(good[mask]==n){
				cout<<"YES";
				return 0;
			}
		}
		cout<<"NO";
	}
}

• Subtask 1: 0 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 0 / 29