제출 #540953

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
540953		vinnipuh01	Longest beautiful sequence (IZhO17_subsequence)	C++17	0 / 100	1 ms	212 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>
#define int long long

using namespace std;

const long long oo = 1000000000000000000;

long long  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 n, a[ 100001 ], b[ 100001 ];
vector <int> v, vans;

main () {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n;
    for ( int i = 0; i < n; i ++ )
    	cin >> a[ i ];
    for ( int j = 0; j < n; j ++ )
    	cin >> b[ j ];
    for ( int mask = 1; mask < ( 1 << n ); mask ++ ) {
    	pos = -1;
    	ans = num = 0;
    	v.clear();
		for ( int i = 0; i < n; i ++ ) {
    		if ( ( mask & ( 1 << i ) ) ) {
    			if ( pos == -1 ) {
    				pos = i;
    			}
    			else {
					num ++;
    				if ( __builtin_popcount( ( a[ i ] & a[ pos ] ) ) != b[ num ] ) {
    					ans = 1;
    					break;
    				}
    				pos = i;
				}
				v.push_back( i + 1 );
			}
		}
		if ( !ans ) {
			if ( vans.size() < v.size() )
				vans = v;
		}
	}
	cout << vans.size() << "\n";
	for ( auto i : vans )
		cout << i << " ";
}

컴파일 시 표준 에러 (stderr) 메시지

subsequence.cpp:49:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   49 | main () {
      | ^~~~

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