Submission #1098771

#	Time	Username	Problem	Language	Result	Execution time	Memory
1098771		sitablechair	Longest beautiful sequence (IZhO17_subsequence)	C++17	23 / 100	6067 ms	2176 KiB

subsequence

#include <bits/stdc++.h>

#define ll long long
#define ldb long double
#define endl '\n'
#define For(i,l,r) for(int i=l;i<=r;i++)
#define ForD(i,r,l) for(int i=r;i>=l;i--)
#define REP(i,l,r) For(i,l,r-1)
#define PER(i,r,l) ForD(i,r-1,l)
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
#define All(x,n) x+1,x+1+n
#define Alll(x,n) x,x+n
#define sz(x) (signed)x.size()
#define unq(x) x.resize(unique(all(x))-x.begin())
#define mpa make_pair

#ifdef NCGM
#include"debug.h"
#else 
#define debug(...) "fr";
#endif

using namespace std;

const int N=1e5+3;
int f[N],n,a[N],b[N];
int op[N];
int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n;
    For(i,1,n) cin >> a[i];
    For(i,1,n) cin >> b[i];
    For(i,1,n) {
        f[i]=1;
        op[i]=0;
        For(j,1,i-1) 
            if (__builtin_popcount(a[i]&a[j])==b[i]) 
                if (f[i]<f[j]+1) {
                    f[i]=f[j]+1;
                    op[i]=j;
                }
    }
    int ans=0,lst=-1;
    For(i,1,n) {
        if (ans<f[i]) {
            ans=f[i];
            lst=i;
        }
    }
    vector<int> track;
    while(lst!=0) {
        track.pb(lst);
        lst=op[lst];
    }
    reverse(all(track));
    cout << ans << endl;
    for(auto el: track) cout << el << " ";
    return 0;
}

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