Submission #862433

#	Time	Username	Problem	Language	Result	Execution time	Memory
862433		KK_1729	Longest beautiful sequence (IZhO17_subsequence)	C++17	0 / 100	0 ms	456 KiB

subsequence

#include <bits/stdc++.h>
using namespace std;

#define int long long 
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define pb push_back
#define all(a) a.begin(), a.end()
#define endl "\n"

void printVector(vector<int> a){
    for (auto x: a) cout << x << " ";
    cout << endl;
}
void solve(){
    int n; cin >> n;
    vector<int> a(n);
    FOR(i,0,n) cin >> a[i];

    vector<int> k(n);
    FOR(i,0,n) cin >> k[i];

    vector<int> dp(n, 1);
    vector<int> prev(n, -1);
    dp[0] = 1;
    for (int i = 1; i < n; ++i){
        for (int j = 0; j < i; ++j){
            if (__builtin_popcount(a[i]&a[j]) == k[i]){
                if (dp[j]+1 > dp[i]) prev[i] = j;
                dp[i] = dp[j]+1;
            }
        }
    }
    int ans = 0;
    int best = -1;
    FOR(i,0,n){
        if (dp[i] > ans){
            ans = dp[i];
            best = i;
        }
    }

    vector<int> items;
    while (prev[best] != -1){
        items.pb(best+1);
        best = prev[best];
    }
    items.pb(best+1);
    reverse(all(items));
    cout << ans << endl;
    printVector(items);
}
int32_t main(){
    ios::sync_with_stdio(false); cin.tie(0);
    int t = 1;
    while (t--) solve();
}

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