Submission #1128062

#	Time	Username	Problem	Language	Result	Execution time	Memory
1128062		Noproblem29	Longest beautiful sequence (IZhO17_subsequence)	C++20	0 / 100	1 ms	328 KiB

subsequence

#include<bits/stdc++.h>
using namespace std;
#ifndef BADGNU
#pragma GCC target("sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#endif
#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp> 
using namespace __gnu_pbds;
#define ll long long
#define int ll
#define ld long double
#define y1 cheza
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<class T> using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
template<class T> using ordered_multiset = tree<T,null_type,less_equal<T>,rb_tree_tag,tree_order_statistics_node_update>;
const int N=1e5+100;
const int M=5001;
const int B=447;
const int mod=998244353;
const ll INF=1e18;
const int dx[]={1,-1,0,0};
const int dy[]={0,0,1,-1};
const double eps=1e-6;
int n;
int a[N];
int b[N];
int p[N];
int dp[N];
int last[(1ll<<10ll)];
void test(){
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
        if(a[i]>(1ll<<10ll)){
            assert(false);
        }
    }
    for(int i=1;i<=n;i++){
        cin>>b[i];
        p[i]=i;
    }
    int mx=1;
    for(int i=1;i<=n;i++){
        dp[i]=1;
        for(int j=0;j<(1<<10);j++){
            int cur=__builtin_popcountll(a[i]&j);
            if(cur!=b[i]||last[j]==0)continue;
            if(dp[i]<dp[last[j]]+1){
                dp[i]=dp[last[j]]+1;
                p[i]=last[j];
            }
        }
        if(dp[mx]<dp[i]){
            mx=i;
        }
        if(last[a[i]]==0||dp[last[a[i]]]<dp[i]){
            last[a[i]]=i;
        }
    }
    cout<<dp[mx]<<'\n';
    vector<int>v;
    v.push_back(mx);
    while(mx!=p[mx]){
        mx=p[mx];
        v.push_back(mx);
    }
    reverse(v.begin(),v.end());
    for(auto i:v){
        cout<<i<<' ';
    }
    cout<<'\n';

}




/*

*/
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    // cout.tie(nullptr);
    int t2=1;
    // cin>>t2;
    for(int i=1;i<=t2;i++){
        test();
    }
}

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