Submission #27134

#	Time	Username	Problem	Language	Result	Execution time	Memory
27134		RayaBurong25_1	Amusement Park (JOI17_amusement_park)	C++14	100 / 100	449 ms	63208 KiB

Joi

#include <stdio.h>
#include "Joi.h"
#include <vector>
#include <set>
#define SZ 60
static std::vector<int> AdjList[10005];
static std::set<int> Set[10005];
static int Vis[10005];
static int Role[10005];
// static int HELLO = 0;
static void FirstSet(int u, int pa)
{
	// printf("FirstSet u%d pa%d s%d\n", u, pa, AdjList[u].size());
	if (Set[0].size() < SZ)
	{
		Role[u] = Set[0].size();
		Set[0].insert(u);
	}
	int i, j, v;
	Vis[u] = 1;
	for (i = 0; i < AdjList[u].size(); i++)
	{
		v = AdjList[u][i];
		// printf(".");
		if (v != pa)
		{
			// printf(".");
			if (!Vis[v])
			{
				// HELLO++;
				FirstSet(v, u);
				// HELLO--;
			}
			else
			{
				AdjList[u].erase(AdjList[u].begin() + i);
				for (j = 0; j < AdjList[v].size(); j++)
					if (AdjList[v][j] == u)
						break;
				if (j < AdjList[v].size())
					AdjList[v].erase(AdjList[v].begin() + j);
				else
					printf("WTF\n");
				i--;
			}
		}
	}
}
// static int HELLO;
static void OtherSet(int u, int pa)
{
	// printf("OtherSet u%d pa%d\n", u, pa);
	// HELLO++;
	int i, j, v, s, d;
	if (u != 0)
	{
		Set[u] = Set[pa];
		if (Set[u].find(u) == Set[u].end())
		{
			std::set<int>::iterator it;
			Set[u].insert(u);
			// for (it = Set[u].begin(); it != Set[u].end(); it++)
			// 	printf("%d ", *it);
			// printf("\n");
			for (it = Set[u].begin(); it != Set[u].end(); it++)
			{
				if (*it == pa || *it == u)
					continue;
				s = AdjList[*it].size();
				d = 0;
				for (j = 0; j < s; j++)
				{
					if (Set[u].find(AdjList[*it][j]) != Set[u].end())
					{
						// printf("%d-%d\n", *it, AdjList[*it][j]);
						d++;
					}
					// else
					// 	printf("%d-%dX\n", *it, AdjList[*it][j]);
				}
				if (d == 1)
					break;
			}
			if (it != Set[u].end())
			{
				Role[u] = Role[*it];
				Set[u].erase(it);
				// printf("u %d pa %d erase %d d %d\n", u, pa, *it, d);
			}
		}
	}
	s = AdjList[u].size();
	for (i = 0; i < s; i++)
	{
		v = AdjList[u][i];
		if (v != pa && Set[v].size() == 0)
		{
			OtherSet(v, u);
		}
	}
}
void Joi(int N, int M, int A[], int B[], long long X, int T)
{
	int i;
	for (i = 0; i < M; i++)
	{
		AdjList[A[i]].push_back(B[i]);
		AdjList[B[i]].push_back(A[i]);
	}
	FirstSet(0, -1);
	// printf("FirstSet fin\n");
	// for (i = 0; i < N; i++)
	// 	HELLO += AdjList[i].size();
	// printf("HELLO %d\n", HELLO);
	OtherSet(0, -1);
	// printf("OtherSet fin %d\n", HELLO);

	int val[SZ];
	for (i = 0; i < SZ; i++)
	{
		val[i] = X%2;
		X >>= 1;
	}
	for (i = 0; i < N; i++)
	{
		MessageBoard(i, val[Role[i]]);
	}
	// printf("Joi fin\n");
}

Ioi

#include <stdio.h>
#include "Ioi.h"
#include <vector>
#include <set>
#define SZ 60
static std::vector<int> AdjList[10005];
static std::set<int> Set[10005];
static int Vis[10005];
static int Role[10005];
static void FirstSet(int u, int pa)
{
	// printf("FirstSet u%d pa%d s%d\n", u, pa, AdjList[u].size());
	if (Set[0].size() < SZ)
	{
		Role[u] = Set[0].size();
		Set[0].insert(u);
	}
	int i, j, v;
	Vis[u] = 1;
	for (i = 0; i < AdjList[u].size(); i++)
	{
		v = AdjList[u][i];
		// printf(".");
		if (v != pa)
		{
			// printf(".");
			if (!Vis[v])
			{
				// HELLO++;
				FirstSet(v, u);
				// HELLO--;
			}
			else
			{
				AdjList[u].erase(AdjList[u].begin() + i);
				for (j = 0; j < AdjList[v].size(); j++)
					if (AdjList[v][j] == u)
						break;
				if (j < AdjList[v].size())
					AdjList[v].erase(AdjList[v].begin() + j);
				else
					printf("WTF\n");
				i--;
			}
		}
	}
}
// static int HELLO;
static void OtherSet(int u, int pa)
{
	// printf("OtherSet u%d\n", u);
	// HELLO++;
	int i, j, v, s, d;
	if (u != 0)
	{
		Set[u] = Set[pa];
		if (Set[u].find(u) == Set[u].end())
		{
			std::set<int>::iterator it;
			Set[u].insert(u);
			for (it = Set[u].begin(); it != Set[u].end(); it++)
			{
				if (*it == pa || *it == u)
					continue;
				s = AdjList[*it].size();
				d = 0;
				for (j = 0; j < s; j++)
				{
					if (Set[u].find(AdjList[*it][j]) != Set[u].end())
						d++;
				}
				if (d == 1)
					break;
			}
			if (it != Set[u].end())
			{
				Role[u] = Role[*it];
				Set[u].erase(it);
			}
		}
	}
	s = AdjList[u].size();
	for (i = 0; i < s; i++)
	{
		v = AdjList[u][i];
		if (v != pa && Set[v].size() == 0)
		{
			OtherSet(v, u);
		}
	}
}
static int val[SZ];
// static int HELLO;
void GetVal(int P, int u, int pa)
{
	// printf("GetVal %d %d\n", u, pa);
	// HELLO++;
	int i, v, s = AdjList[u].size();
	Vis[u] = 1;
	for (i = 0; i < s; i++)
	{
		v = AdjList[u][i];
		if (v != pa && !Vis[v] && Set[P].find(v) != Set[P].end())
		{
			val[Role[v]] = Move(v);
			GetVal(P, v, u);
			Move(u);
		}
	}
}
long long Ioi(int N, int M, int A[], int B[], int P, int V, int T)
{
	int i;
	for (i = 0; i < M; i++)
	{
		AdjList[A[i]].push_back(B[i]);
		AdjList[B[i]].push_back(A[i]);
	}
	FirstSet(0, -1);
	OtherSet(0, -1);

	val[Role[P]] = V;
	for (i = 0; i < N; i++)
		Vis[i] = 0;
	std::set<int>::iterator it;
	// for (i = 0; i < N; i++)
	// 	printf("%d\n", Set[i].size());
	GetVal(P, P, -1);
	// printf("GetVal fin %d %d\n", Set[P].size(), HELLO);

	long long X = 0;
	for (i = SZ - 1; i >= 0; i--)
	{
		X <<= 1;
		X += val[i];
	}
	// printf("X %lld\n", X);
	return X;
}

Compilation message (stderr)

Joi.cpp: In function 'void FirstSet(int, int)':
Joi.cpp:21:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 0; i < AdjList[u].size(); i++)
                ^
Joi.cpp:37:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (j = 0; j < AdjList[v].size(); j++)
                   ^
Joi.cpp:40:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (j < AdjList[v].size())
           ^

Ioi.cpp: In function 'void FirstSet(int, int)':
Ioi.cpp:20:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 0; i < AdjList[u].size(); i++)
                ^
Ioi.cpp:36:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (j = 0; j < AdjList[v].size(); j++)
                   ^
Ioi.cpp:39:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (j < AdjList[v].size())
           ^

• Subtask 1: 8 / 8
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 55 / 55
• Subtask 5: 17 / 17