Submission #484072

#	Time	Username	Problem	Language	Result	Execution time	Memory
484072		vinnipuh01	Longest beautiful sequence (IZhO17_subsequence)	C++17	23 / 100	6074 ms	2324 KiB

subsequence

#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>

using namespace std;

const long long oo = 1000000000000000000;

long long int  sum, ans = 0, mx = 0, mn = 1000000000, num, pos;


/*
    ViHHiPuh

   (( `'-""``""-'` ))
     )-__-_.._-__-(
   / --- (o _ o) --- \
   \ .-* ( .0. ) *-. /
   _'-. ,_ '=' _, .-'_
  / `;#'#'# - #'#'#;` \
 \_)) -----'#'----- ((_/
      # --------- #
  '# ------- ------ #'
  /..-'# ------- #'-.\
  _\...-\'# -- #'/-.../_
  ((____)- '#' -(____))


    cout << fixed << setprecision(6) << x;

    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    freopen ( "sum.in", "r", stdin )
*/

int dp[ 100001 ], p[ 100001 ];
vector <int> v;


int main () {
	int n;
	cin >> n;
	int a[ n + 1 ];
	int b[ n + 1 ];
	for ( int i = 1; i <= n; i ++ ) {
		cin >> a[ i ];
		dp[ i ] = 1;
		p[ i ] = -1;
	}
	for ( int j = 1; j <= n; j ++ ) {
		cin >> b[ j ];
	}
	for ( int i = 2; i <= n; i ++ ) {
		for ( int j = 1; j < i; j ++ ) {
			if ( __builtin_popcount( a[ i ] & a[ j ] ) == b[ i ] && dp[ i ] < dp[ j ] + 1 ) {
				dp[ i ] = dp[ j ] + 1;
				p[ i ] = j;
			}
		}
	}
	for ( int i = 1; i <= n; i ++ ) {
		if ( dp[ i ] > mx ) {
			mx = dp[ i ];
			pos = i;
		}
	}
	cout << mx << "\n";
	for ( int i = pos; i != -1; i = p[ i ] ) {
		v.push_back( i );
	}
	for ( int i = v.size() - 1; i >= 0; i -- )
		cout << v[ i ] << " ";
}

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