oj.uz

Submission #223109

# Submission time Handle Problem Language Result Execution time Memory
223109 2020-04-14T19:06:09 Z Andrei_Cotor Chameleon's Love (JOI20_chameleon) C++14
100 / 100
 54 ms 512 KB 
//o pereche de 2 cameleoni (x,y) va da rasp 1 daca: color(x)=color(y), x il iubeste pe y, y il iubeste pe x
//impart in 4 seturi a.i. cameleonii din cele 4 seturi sunt independenti
#include"chameleon.h"
#include<vector>
#include<iostream>

using namespace std;

vector<int> Sets[4];
vector<int> Adj[1005];
bool Answered[1005];
int Loves[1005],Loved[1005]; //loves=pe cine, loved=de cine
bool Viz[1005];
int nrq;

bool check(int cham, int s, int st, int dr)
{
	if(st>dr)
		return 0;

	vector<int> Aux;
	Aux.push_back(cham);
	for(int j=st; j<=dr; j++)
		Aux.push_back(Sets[s][j]);

	nrq++;
	if(Query(Aux)==Aux.size())
		return 0;
	return 1;
}

int getCandidate(int cham, int s, int dec)
{
	int poz=dec-1;
	for(int i=9; i>=0; i--)
	{
		if(poz+(1<<i)<Sets[s].size() && !check(cham,s,dec,poz+(1<<i)))
			poz+=(1<<i);
	}
	poz++;
	return poz;
}

void Solve(int n)
{
	for(int i=1; i<=2*n; i++)
	{
		int ind=-1;
		for(int j=0; j<4; j++)
		{
			Sets[j].push_back(i);

			if(Query(Sets[j])==Sets[j].size())
			{
				if(ind==-1 || Sets[j].size()<Sets[ind].size()) //le echilibrez cat mai mult pt a optimiza nr de pasi de la cautare
					ind=j;
			}

			Sets[j].pop_back();
		}

		Sets[ind].push_back(i);
	}

	for(int i=0; i<4; i++)
	{
		for(auto cham:Sets[i])
		{
			int nr=0;
			for(int j=i+1; j<4; j++)
			{
				int lastcand=-1;
				while(nr<3)
				{
					if(!check(cham,j,lastcand+1,Sets[j].size()-1))
						break;

					int cand=getCandidate(cham,j,lastcand+1);

					if(cand==Sets[j].size())
						break;

					nr++;
					Adj[cham].push_back(Sets[j][cand]);
					Adj[Sets[j][cand]].push_back(cham);
					lastcand=cand;
				}

				if(nr==3)
					break;
			}
		}
	}
	//cout<<nrq<<"\n";

	for(int i=1; i<=2*n; i++)
	{
		if(Answered[i])
			continue;

		if(Adj[i].size()==1) //i iubeste si este iubit de acelasi cameleon, deci cel din Adj este cel de aceasi culoare
		{
			Answer(i,Adj[i][0]);
			Answered[i]=1;
			Answered[Adj[i][0]]=1;
		}
	}

	vector<int> Aux;
	for(int ind=1; ind<=2*n; ind++)
	{
		int i=ind;
		while(!Viz[i])
		{
			Viz[i]=1;
			if(Adj[i].size()==1)
				continue;

			Aux.clear();
			Aux.push_back(i);
			Aux.push_back(Adj[i][0]);
			Aux.push_back(Adj[i][1]);

			if(Loved[i]!=Adj[i][2] && Query(Aux)==1)
			{
				Loves[i]=Adj[i][2];
				Loved[Adj[i][2]]=i;

				i=Loves[i];
				continue;
			}

			Aux[2]=Adj[i][2];
			if(Loved[i]!=Adj[i][1] && Query(Aux)==1)
			{
				Loves[i]=Adj[i][1];
				Loved[Adj[i][1]]=i;

				i=Loves[i];
				continue;
			}

			Aux[1]=Adj[i][1];
			if(Loved[i]!=Adj[i][0] && Query(Aux)==1)
			{
				Loves[i]=Adj[i][0];
				Loved[Adj[i][0]]=i;

				i=Loves[i];
				continue;
			}
		}
	}

	for(int i=1; i<=2*n; i++)
	{
		if(Answered[i])
			continue;

		int per=Adj[i][0]^Adj[i][1]^Adj[i][2]^Loves[i]^Loved[i];
		Answer(i,per);
		Answered[per]=1;
		Answered[i]=1;
	}
}

Compilation message

chameleon.cpp: In function 'bool check(int, int, int, int)':
chameleon.cpp:27:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(Query(Aux)==Aux.size())
     ~~~~~~~~~~^~~~~~~~~~~~
chameleon.cpp: In function 'int getCandidate(int, int, int)':
chameleon.cpp:37:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(poz+(1<<i)<Sets[s].size() && !check(cham,s,dec,poz+(1<<i)))
      ~~~~~~~~~~^~~~~~~~~~~~~~~
chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:53:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if(Query(Sets[j])==Sets[j].size())
       ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
chameleon.cpp:80:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if(cand==Sets[j].size())
         ~~~~^~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 34 ms 384 KB Output is correct
4 Correct 33 ms 384 KB Output is correct
5 Correct 35 ms 512 KB Output is correct
6 Correct 33 ms 384 KB Output is correct
7 Correct 34 ms 384 KB Output is correct
8 Correct 33 ms 384 KB Output is correct
9 Correct 33 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 6 ms 384 KB Output is correct
13 Correct 6 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 52 ms 384 KB Output is correct
4 Correct 51 ms 384 KB Output is correct
5 Correct 51 ms 504 KB Output is correct
6 Correct 50 ms 512 KB Output is correct
7 Correct 49 ms 384 KB Output is correct
8 Correct 49 ms 384 KB Output is correct
9 Correct 49 ms 384 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 34 ms 384 KB Output is correct
4 Correct 33 ms 384 KB Output is correct
5 Correct 35 ms 512 KB Output is correct
6 Correct 33 ms 384 KB Output is correct
7 Correct 34 ms 384 KB Output is correct
8 Correct 33 ms 384 KB Output is correct
9 Correct 33 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 256 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 6 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 4 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 52 ms 384 KB Output is correct
31 Correct 51 ms 384 KB Output is correct
32 Correct 51 ms 504 KB Output is correct
33 Correct 50 ms 512 KB Output is correct
34 Correct 49 ms 384 KB Output is correct
35 Correct 49 ms 384 KB Output is correct
36 Correct 49 ms 384 KB Output is correct
37 Correct 52 ms 384 KB Output is correct
38 Correct 32 ms 384 KB Output is correct
39 Correct 53 ms 384 KB Output is correct
40 Correct 54 ms 384 KB Output is correct
41 Correct 54 ms 436 KB Output is correct
42 Correct 33 ms 384 KB Output is correct
43 Correct 49 ms 384 KB Output is correct
44 Correct 54 ms 384 KB Output is correct
45 Correct 53 ms 384 KB Output is correct