oj.uz

Submission #712040

# Submission time Handle Problem Language Result Execution time Memory
712040 2023-03-18T02:22:34 Z LittleCube Chameleon's Love (JOI20_chameleon) C++14
100 / 100
 47 ms 616 KB 
#include "chameleon.h"
#include <iostream>
#include <vector>
using namespace std;


vector<int> A, B, E[1005];
int color[1005], q;
vector<int> adj;

vector<int> with(int u, vector<int> v)
{
	v.emplace_back(u);
	return v;
}

void find(int u, vector<int> v)
{	
	if(v.empty())
		return;
	if(v.size() == 1)
		adj.emplace_back(v[0]);
	else
	{
		int mid = v.size() / 2;
		vector<int> l(v.begin(), v.begin() + mid), r(v.begin() + mid, v.end());
		if(Query(with(u, l)) <= l.size())
			find(u, l);
		else 
			find(u, r);
	}
}


vector<int> erase(vector<int> v, int u)
{
	bool flag = 0;
	for(int i = 0; i < v.size(); i++)
	{
		if(flag)
			v[i - 1] = v[i];
		if(v[i] == u)
			flag = 1;
	}
	if(flag)
		v.pop_back();
	return v;
}

void dfs(int u)
{
	for (auto v : E[u])
		if(!color[v])
		{
			color[v] = 3 ^ color[u];
			dfs(v);
		}
}

void Solve(int N)
{
	for (int i = 1; i <= 2 * N; i++)
	{
		for (int j = 1; j < i; j++)
			color[j] = 0;
		for (int j = 1; j < i; j++)
			if(!color[j])
			{
				color[j] = 1;
				dfs(j);
			}
		A.clear(), B.clear();
		for (int j = 1; j < i; j++)
			(color[j] == 1 ? A : B).emplace_back(j);
		adj.clear();
		while(Query(with(i, A)) <= A.size())
		{
			find(i, A);
			A = erase(A, adj.back());
		}
		while(Query(with(i, B)) <= B.size())
		{
			find(i, B);
			B = erase(B, adj.back());
		}
		for (int j : adj)
		{
			E[i].emplace_back(j);
			E[j].emplace_back(i);
		}
	}
	for (int i = 1; i <= 2 * N; i++)
		if(E[i].size() == 3)
		{
			int a = E[i][0], b = E[i][1], c = E[i][2];
			int x = Query(vector<int>{i, a, b}),
				y = Query(vector<int>{i, b, c}),
				z = 5 - x - y;
			if(x == 2 && y == 2)
				E[i].emplace_back(-b), E[b].emplace_back(-i);
			else if(y == 2 && z == 2)
				E[i].emplace_back(-c), E[c].emplace_back(-i);
			else if(z == 2 && x == 2)	
				E[i].emplace_back(-a), E[a].emplace_back(-i);
		}
		else if(E[i].size() == 4)
		{
			int a = E[i][0], b = E[i][1], c = E[i][2];
			int x;
			if(E[i][3] == -a)
				x = (Query(vector<int>{i, a, b}) == 2 ? b : c);
			else if(E[i][3] == -b)
				x = (Query(vector<int>{i, b, c}) == 2 ? c : a);
			else	
				x = (Query(vector<int>{i, c, a}) == 2 ? a : b);
					
			E[i].emplace_back(-x), E[x].emplace_back(-i);
		}
	for (int i = 1; i <= 2 * N; i++)
	{
		int sum = 0;
		for(auto j : E[i])
			sum += j;
		if(i < sum)
			Answer(i, sum);
	}

}

Compilation message

chameleon.cpp: In function 'void find(int, std::vector<int>)':
chameleon.cpp:27:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   if(Query(with(u, l)) <= l.size())
      |      ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
chameleon.cpp: In function 'std::vector<int> erase(std::vector<int>, int)':
chameleon.cpp:38:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i = 0; i < v.size(); i++)
      |                 ~~^~~~~~~~~~
chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:76:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |   while(Query(with(i, A)) <= A.size())
      |         ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
chameleon.cpp:81:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |   while(Query(with(i, B)) <= B.size())
      |         ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 23 ms 432 KB Output is correct
4 Correct 22 ms 460 KB Output is correct
5 Correct 21 ms 504 KB Output is correct
6 Correct 22 ms 464 KB Output is correct
7 Correct 23 ms 488 KB Output is correct
8 Correct 23 ms 508 KB Output is correct
9 Correct 22 ms 476 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 0 ms 336 KB Output is correct
9 Correct 0 ms 336 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 336 KB Output is correct
8 Correct 0 ms 336 KB Output is correct
9 Correct 0 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 280 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 2 ms 336 KB Output is correct
17 Correct 2 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 44 ms 440 KB Output is correct
4 Correct 46 ms 424 KB Output is correct
5 Correct 44 ms 412 KB Output is correct
6 Correct 45 ms 464 KB Output is correct
7 Correct 46 ms 464 KB Output is correct
8 Correct 47 ms 432 KB Output is correct
9 Correct 44 ms 456 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 23 ms 432 KB Output is correct
4 Correct 22 ms 460 KB Output is correct
5 Correct 21 ms 504 KB Output is correct
6 Correct 22 ms 464 KB Output is correct
7 Correct 23 ms 488 KB Output is correct
8 Correct 23 ms 508 KB Output is correct
9 Correct 22 ms 476 KB Output is correct
10 Correct 0 ms 336 KB Output is correct
11 Correct 0 ms 336 KB Output is correct
12 Correct 0 ms 336 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 0 ms 336 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 336 KB Output is correct
17 Correct 0 ms 336 KB Output is correct
18 Correct 0 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 280 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 2 ms 336 KB Output is correct
26 Correct 2 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 0 ms 336 KB Output is correct
29 Correct 0 ms 336 KB Output is correct
30 Correct 44 ms 440 KB Output is correct
31 Correct 46 ms 424 KB Output is correct
32 Correct 44 ms 412 KB Output is correct
33 Correct 45 ms 464 KB Output is correct
34 Correct 46 ms 464 KB Output is correct
35 Correct 47 ms 432 KB Output is correct
36 Correct 44 ms 456 KB Output is correct
37 Correct 45 ms 616 KB Output is correct
38 Correct 22 ms 552 KB Output is correct
39 Correct 43 ms 540 KB Output is correct
40 Correct 43 ms 464 KB Output is correct
41 Correct 46 ms 464 KB Output is correct
42 Correct 23 ms 508 KB Output is correct
43 Correct 45 ms 408 KB Output is correct
44 Correct 44 ms 544 KB Output is correct
45 Correct 46 ms 484 KB Output is correct