Submission #1265515

#	Time	Username	Problem	Language	Result	Execution time	Memory
1265515		PlayVoltz	Longest beautiful sequence (IZhO17_subsequence)	C++20	0 / 100	1 ms	1096 KiB

subsequence

#include <cstdio>
#include <stdio.h>
#include <stdbool.h>
#include <iostream>
#include <map>
#include <vector>
#include <climits>
#include <stack>
#include <string>
#include <queue>
#include <algorithm>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cmath>
#include <cctype>
#include <bitset>
#include <iomanip>
#include <cstring>
#include <numeric>
#include <cassert>
using namespace std;
 
#define int long long
#define pii pair<int, int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second

pii dp[(1<<10)+5][(1<<10)+5][15];

int32_t main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n;
	cin>>n;
	vector<pii> ans(n+1, mp(0, 0)), vect(n+1);
	for (int i=1; i<=n; ++i)cin>>vect[i].fi;
	for (int i=1; i<=n; ++i)cin>>vect[i].se;
	pii mx=mp(0, 0);
	for (int i=1; i<=n; ++i){
		int l=(vect[i].fi>>10), r=(vect[i].fi&((1<<10)-1));
		for (int mask=0; mask<(1<<10); ++mask){
			int c=vect[i].se-__builtin_popcountll((l&mask));
			if (c<0||c>10)continue;
			if (dp[mask][r][c].fi+1>ans[i].fi)ans[i]=mp(dp[mask][r][c].fi+1, dp[mask][r][c].se);
		}
		if (ans[i].fi>mx.fi)mx=mp(ans[i].fi, i);
		for (int mask=0; mask<(1<<10); ++mask){
			int c=__builtin_popcountll((r&mask));
			if (ans[i].fi>dp[l][mask][c].fi)dp[l][mask][c]=mp(ans[i].fi, i);
		}
	}
	stack<int> res;
	while (mx.se)res.push(mx.se), mx.se=ans[mx.se].se;
	cout<<res.size()<<"\n";
	while (res.size())cout<<res.top()<<" ", res.pop();
}

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