Submission #502237

#	Time	Username	Problem	Language	Result	Execution time	Memory
502237		luka1234	Longest beautiful sequence (IZhO17_subsequence)	C++14	7 / 100	1 ms	432 KiB

subsequence

#include<bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
using namespace std;
int n;
int a[16],b[16];
int main(){
	cin>>n;
	for(int k=0;k<n;k++){
		cin>>a[k];
	}
	for(int k=0;k<n;k++){
		cin>>b[k];
	}
	bitset<32> btans;
	int ans=0;
	for(int k=1;k<(1<<n);k++){
		bitset<32> bt=k;
		int cnt=0;
		int wina=0;
		int ind=0;
		for(int i=0;i<n;i++){
			if(bt[i]==1){
				cnt++;
				if(cnt==1){
					wina=i;
				}
				if(cnt>1){
					int f=a[i]&a[wina];
					int r=__builtin_popcount(f);
					if(r!=b[i]){
						ind=1;
						break;
					}
					wina=i;
				}
			}
		}
		if(ind==0&&cnt>ans){
			ans=cnt;
			btans=bt;
		}
	}
	cout<<ans<<"\n";
	for(int k=0;k<n;k++){
		if(btans[k]==1)
		   cout<<k+1<<' ';
	}
	return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 16
• Subtask 3: 0 / 17
• Subtask 4: 0 / 60