Submission #1126603

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126603		brover29	Longest beautiful sequence (IZhO17_subsequence)	C++20	23 / 100	6082 ms	2864 KiB

subsequence

#include <bits/stdc++.h>
//qwerty47924692
using namespace std;
using ll = long long;
const ll N=2e5+29;
const string br="617283";

ll dp[N],a[N],k[N],n,opt[N],op;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin>>n;
    for(ll i=1;i<=n;i++){
        cin>>a[i];
    }for(ll i=1;i<=n;i++){
        cin>>k[i];
    }
    ll ans=0;
    for(ll i=1;i<=n;i++){
        dp[i]=1;
        for(ll j=i-1;j>=0;j--){
            if(__builtin_popcountll(a[i]&a[j])==k[i]){
                dp[i]=max(dp[i],dp[j]+1);
                if(dp[i]==dp[j]+1)opt[i]=j;
            }
        }
        ans=max(ans,dp[i]);
        if(ans==dp[i])op=i;
    }
    cout<<ans<<'\n';
    vector<ll>v;
    ll i=op;
    while(i){
        v.push_back(i);
        i=opt[i];
    }
    reverse(v.begin(),v.end());
    for(ll i:v){
        cout<<i<<' ';
    }
}

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