oj.uz

답안 #313734

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
313734 2020-10-16T20:52:25 Z CaroLinda Amusement Park (JOI17_amusement_park) C++14
18 / 100
 43 ms 4884 KB 
#include "Joi.h"
#include <bits/stdc++.h>

#define sz(x) (int)(x.size())
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define ll long long

using namespace std ;

vector<int> ordem ;
vector< vector<int> > adj ;
vector<bool> vis ;

void dfs(int x)
{
	vis[x] = true ;
	ordem.push_back(x) ;

	for(auto e : adj[x])
	{
		
		if(vis[e]) continue ;

		dfs(e) ;
		ordem.push_back(x) ;
	}

}

int isOn(int i, ll x ) { return ((1LL<<i)&x) != 0; }

void Joi(int N, int M, int A[], int B[], long long X, int T) 
{

	adj.resize( N+10 , vector<int>() )	 ;
	vis.resize(N+10,false) ;

	for(int i= 0 ; i < M ; i++ ) 
	{
		adj[ A[i] ].push_back( B[i] ) ;
		adj[ B[i] ].push_back( A[i] ) ;
	}

	for(int i = 0 ; i < N ; i++ ) sort(all(adj[i]));

	dfs(0) ;

	vector<int> freq(60, 0) ;
  	vector<int> val(N+10, -1) ;

  	set<int> holdingOn ;

  for(int i = 0 ; i < sz(ordem) ; i++ )
  {
  	if( i-121 >= 0 && val[ordem[i-121]]!= -1 && (--freq[ val[ordem[i-121]] ]) == 0 && sz(holdingOn) > 0)
  	{
  		int x = *holdingOn.begin() ;
  		holdingOn.erase( holdingOn.begin() ) ;

  		val[x] = val[ordem[i-121]] ;

  		for(int j = i-120 ; j <= i ; j++ )
  			if( ordem[j] == x ) freq[ val[x] ]++ ;

  	}


  	if(val[ ordem[i] ] == -1)
  	{
  		for(int j = 0 ; j < 60 ; j++ )
  			if(freq[j] == 0) 
  			{
  				val[ ordem[i] ] = j ;
  				break ;
  			}

  		if( val[ordem[i]] == -1 ) holdingOn.insert(ordem[i]) ;
  		else if( holdingOn.find(ordem[i]) != holdingOn.end() )
  			holdingOn.erase( holdingOn.find(ordem[i]) ) ;
  	}

  	if( val[ordem[i]] != -1 )
  		freq[ val[ ordem[i] ] ]++ ;

  }	

  for(int i = 0 ; i < N ; i++ ) 
  	MessageBoard( i, isOn(val[i] , X) ) ;

}

#include "Ioi.h"
#include <bits/stdc++.h>

#define debug printf
#define sz(x) (int)(x.size())
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define ll long long

using namespace std ;

vector<int> ord , tin , tout ;
vector< vector<int> > graph ;
vector<bool> mark ;

void dfsPrime(int x)
{
	tin[x] = tout[x] = sz(ord);
	mark[x] = true ;

	ord.push_back(x) ;

	for(auto e : graph[x])
	{
		if(mark[e]) continue ;
		
		dfsPrime(e) ;

		tout[x] = sz(ord) ;
		ord.push_back(x) ;
	}

}

long long Ioi(int N, int M, int A[], int B[], int P, int V, int T) 
{

	graph.resize( N+10 , vector<int>() );
	tin.resize(N+10);
	tout.resize(N+10) ;
	mark.resize(N+10,false) ;

	for(int i= 0 ; i < M ; i++ ) 
	{
		graph[ A[i] ].push_back( B[i] ) ;
		graph[ B[i] ].push_back( A[i] ) ;
	}

	for(int i = 0 ; i < N ; i++ ) sort(all(graph[i]));

	dfsPrime(0) ;

	vector<int> freq(60, 0) ;
  	vector<int> val(N+10, -1) ;

  	set<int> holdingOn ;

  for(int i = 0 ; i < sz(ord) ; i++ )
  {
  	if( i-121 >= 0 && val[ord[i-121]]!= -1 && (--freq[ val[ord[i-121]] ]) == 0 && sz(holdingOn) > 0)
  	{
  		int x = *holdingOn.begin() ;
  		holdingOn.erase( holdingOn.begin() ) ;

  		val[x] = val[ord[i-121]] ;

  		for(int j = i-120 ; j <= i ; j++ )
  			if( ord[j] == x ) freq[ val[x] ]++ ;

  	}

  	if(val[ ord[i] ] == -1)
  	{
  		for(int j = 0 ; j < 60 ; j++ )
  			if(freq[j] == 0) 
  			{
  				val[ ord[i] ] = j ;
  				break ;
  			}

  		if( val[ord[i]] == -1 ) holdingOn.insert(ord[i]) ;
  		else if( holdingOn.find(ord[i]) != holdingOn.end() )
  			holdingOn.erase( holdingOn.find(ord[i]) ) ;
  	}

  	if( val[ord[i]] != -1 )
  		freq[ val[ ord[i] ] ]++ ;

  }	

  int ptrBeg , ptrEn ;

  for(int i = 0 ; i < sz(ord) ; i++ )
  	if(ord[i] == P) { ptrBeg = ptrEn = i ; break ; }

  vector<int> achei(60,0) ;
  achei[ val[P] ] = V ;

  int qtd = 20000 ;

  while(qtd--)
  {
  	//cout << ptrBeg << " " << ptrEn << " " << qtd <<  " " << tin[P]<<" " << tout[P] << " " << P << endl ;

  	if( ptrBeg == tin[P] && ptrEn == tout[P] )
	{
		if(ptrBeg == 0 || ptrEn+1 == sz(ord)) break ;

		P = ord[ptrBeg-1] ;

		achei[ val[P] ] = Move(P) ;
		
		ptrBeg-- ;
		ptrEn++ ;

	}  
	else 
	{
		if( ptrBeg > tin[P]  )
		{
			achei[ val[ ord[ptrBeg-1] ] ] = Move(ord[ptrBeg-1]) ;
			ptrBeg-- ;
		}
		else 
		{
			achei[ val[ord[ptrEn+1]] ] = Move(ord[ptrEn+1]);
			ptrEn++ ;
		}
	}

  }

  ll x = 0LL ;
  for(int i = 0 ; i< 60 ; i++ )
  	x += (1LL<<i) * achei[i] ;

  return x ;

}

Compilation message

Ioi.cpp: In function 'long long int Ioi(int, int, int*, int*, int, int, int)':
Ioi.cpp:108:26: warning: 'ptrEn' may be used uninitialized in this function [-Wmaybe-uninitialized]
  108 |   if(ptrBeg == 0 || ptrEn+1 == sz(ord)) break ;
      |                     ~~~~~^~
Ioi.cpp:122:51: warning: 'ptrBeg' may be used uninitialized in this function [-Wmaybe-uninitialized]
  122 |    achei[ val[ ord[ptrBeg-1] ] ] = Move(ord[ptrBeg-1]) ;
      |                                             ~~~~~~^~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1012 KB Output is correct
2 Correct 2 ms 980 KB Output is correct
3 Correct 2 ms 988 KB Output is correct
4 Correct 2 ms 772 KB Output is correct
5 Correct 2 ms 1016 KB Output is correct
6 Correct 2 ms 772 KB Output is correct
7 Correct 2 ms 1164 KB Output is correct
8 Correct 2 ms 988 KB Output is correct
9 Correct 2 ms 908 KB Output is correct
10 Correct 2 ms 900 KB Output is correct
11 Correct 5 ms 1080 KB Output is correct
12 Correct 1 ms 1024 KB Output is correct
13 Correct 2 ms 908 KB Output is correct
14 Correct 2 ms 988 KB Output is correct
15 Correct 2 ms 780 KB Output is correct
16 Correct 2 ms 984 KB Output is correct
17 Correct 2 ms 908 KB Output is correct
18 Correct 2 ms 992 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 41 ms 4636 KB Output is correct
2 Correct 40 ms 4884 KB Output is correct
3 Correct 41 ms 4616 KB Output is correct
4 Correct 30 ms 3788 KB Output is correct
5 Correct 28 ms 3656 KB Output is correct
6 Correct 30 ms 3660 KB Output is correct
7 Correct 28 ms 3932 KB Output is correct
8 Correct 30 ms 4056 KB Output is correct
9 Correct 28 ms 3916 KB Output is correct
10 Correct 27 ms 3344 KB Output is correct
11 Correct 27 ms 3336 KB Output is correct
12 Correct 27 ms 3260 KB Output is correct
13 Correct 28 ms 3388 KB Output is correct
14 Correct 27 ms 3268 KB Output is correct
15 Correct 30 ms 3604 KB Output is correct
16 Correct 32 ms 3464 KB Output is correct
17 Correct 28 ms 3644 KB Output is correct
18 Correct 28 ms 3404 KB Output is correct
19 Correct 30 ms 3448 KB Output is correct
20 Correct 24 ms 3664 KB Output is correct
21 Correct 23 ms 3564 KB Output is correct
22 Correct 28 ms 3528 KB Output is correct
23 Correct 28 ms 3944 KB Output is correct
24 Correct 31 ms 4032 KB Output is correct
25 Correct 30 ms 4016 KB Output is correct
26 Correct 28 ms 3864 KB Output is correct
27 Correct 28 ms 3940 KB Output is correct
28 Correct 30 ms 4084 KB Output is correct
29 Correct 27 ms 3588 KB Output is correct
30 Correct 27 ms 3904 KB Output is correct
31 Correct 2 ms 1008 KB Output is correct
32 Correct 2 ms 992 KB Output is correct
33 Correct 2 ms 992 KB Output is correct
34 Correct 2 ms 772 KB Output is correct
35 Correct 2 ms 876 KB Output is correct
36 Correct 1 ms 772 KB Output is correct
37 Correct 0 ms 1012 KB Output is correct
38 Correct 1 ms 1028 KB Output is correct
39 Correct 1 ms 1028 KB Output is correct
40 Correct 2 ms 1008 KB Output is correct
41 Correct 2 ms 772 KB Output is correct
42 Correct 1 ms 900 KB Output is correct

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1020 KB Output is correct
2 Correct 1 ms 900 KB Output is correct
3 Correct 2 ms 880 KB Output is correct
4 Incorrect 4 ms 1444 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 40 ms 4644 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 43 ms 4648 KB Output isn't correct
2 Halted 0 ms 0 KB -