Submission #38758

#	Time	Username	Problem	Language	Result	Execution time	Memory
38758		khohko	Bank (IZhO14_bank)	C++14	100 / 100	856 ms	136232 KiB

bank

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define fr first
#define sc second
#define N ((ll)(2e5+100))
#define MAX ((ll)(1e16+100))
#define ARRS ((ll)(2e5+100))
#define MOD ((ll)(1e9+7))
#define pb push_back


ll dp[22][1060000];
ll a[40];
ll s[2000000];
ll b[40];
ll n,m;


int main(){

	cin>>n>>m;
	for(int i=0; i<n; i++)
		cin>>b[i];
	for(int i=1; i<n; i++)
		b[i]+=b[i-1];

	for(int i=0; i<m; i++)
		cin>>a[i];

	s[0]=0;
	for(int t=0; t<(1<<m); t++)
		for(int j=0; j<m; j++)
			if(!((t>>j)&1))
				s[t|(1<<j)]=s[t]+a[j];

	ll pas=0;
	dp[0][0]=1;
	for(int i=0; i<=n; i++){
		for(int t=0; t<(1<<m); t++){
			if(!dp[i][t])continue;
			if(i==n){
				pas=1;
				break;
			}

			if(s[t]==b[i])
				dp[i+1][t]=1;

			for(int j=0; j<m; j++){
				if(!((t>>j)&1))
					dp[i][t|(1<<j)]=1;
			}
			//cout<<i<<" "<<t<<" -> "<<dp[i][t]<<endl;
		}
		//cout<<endl;
	}
	if(pas){
		cout<<"YES";
	}
	else cout<<"NO";
}

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