oj.uz

Submission #1078772

# Submission time Handle Problem Language Result Execution time Memory
1078772 2024-08-28T06:04:13 Z Muhammad_Aneeq Connecting Supertrees (IOI20_supertrees) C++17
56 / 100
 155 ms 22352 KB 
#include <vector>
#include <iostream>
using namespace std;
int const MAXN=1000;
void build(vector<vector<int>> b);
int construct(vector<vector<int>> p)
{
	int n=p.size();
	bool seen[n]={};
	int head[n]={};
	bool vis[n]={};
	for (int i=0;i<n;i++)
		head[i]=-1;
	vector<vector<int>>b(n,vector<int>(n));
	for (int i=0;i<n;i++)
	{
		if (!seen[i])
		{
			seen[i]=1;
			head[i]=i;
			for (int j=0;j<n;j++)
			{
				if (seen[j])
					continue;
				if (p[i][j]==1)
				{
					seen[j]=1;
					b[i][j]=b[j][i]=1;
					head[j]=i;
				}
			}
		}
	}
	for (int i=0;i<n;i++)
	{
		for (int j=0;j<n;j++)
		{
			if (p[i][j]==1&&head[i]!=head[j])
				return 0;
			if (p[i][j]==0&&head[i]==head[j])
				return 0;
		}
	}
	for (int i=0;i<n;i++)
	{
		if (vis[head[i]])
			continue;
		vector<int>x;
		for (int j=0;j<n;j++)
		{
			if (p[i][j]&&!vis[head[j]])
			{
				x.push_back(head[j]);
				vis[head[j]]=1;
			}
		}
		if (x.size()<3)
			continue;
		int pa=head[i];
		for (int  j=0;j<x.size();j++)
		{
			int u=x[j],v=x[(j+1)%x.size()];
			head[u]=head[v]=pa;
			b[u][v]=b[v][u]=1;
		}
	}
	for (int i=0;i<n;i++)
	{
		for (int j=0;j<n;j++)
		{
			int u=head[head[i]],v=head[head[j]];
			if (u==v)
				continue;
			if (p[i][j]!=2&&b[u][v])
				return 0;
			if (p[i][j]==2&&!b[u][v])
				return 0;
		}
	}
	build(b);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:60:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |   for (int  j=0;j<x.size();j++)
      |                 ~^~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 125 ms 22100 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 125 ms 22100 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1108 KB Output is correct
13 Correct 125 ms 22284 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 54 ms 12240 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 5736 KB Output is correct
21 Correct 118 ms 22096 KB Output is correct
22 Correct 122 ms 22036 KB Output is correct
23 Correct 126 ms 22096 KB Output is correct
24 Correct 117 ms 22096 KB Output is correct
25 Correct 54 ms 12112 KB Output is correct
26 Correct 51 ms 12052 KB Output is correct
27 Correct 128 ms 22352 KB Output is correct
28 Correct 116 ms 22100 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 5 ms 1264 KB Output is correct
9 Correct 119 ms 22100 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 119 ms 22036 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 62 ms 12056 KB Output is correct
18 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
19 Halted 0 ms 0 KB -

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 31 ms 5724 KB Output is correct
5 Correct 118 ms 22100 KB Output is correct
6 Correct 138 ms 22096 KB Output is correct
7 Correct 125 ms 22096 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 30 ms 5708 KB Output is correct
10 Correct 121 ms 22100 KB Output is correct
11 Correct 125 ms 22036 KB Output is correct
12 Correct 155 ms 22096 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 29 ms 5820 KB Output is correct
17 Correct 123 ms 22100 KB Output is correct
18 Correct 123 ms 22044 KB Output is correct
19 Correct 116 ms 22096 KB Output is correct
20 Correct 123 ms 22100 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 125 ms 22100 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1108 KB Output is correct
13 Correct 125 ms 22284 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 54 ms 12240 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 5736 KB Output is correct
21 Correct 118 ms 22096 KB Output is correct
22 Correct 122 ms 22036 KB Output is correct
23 Correct 126 ms 22096 KB Output is correct
24 Correct 117 ms 22096 KB Output is correct
25 Correct 54 ms 12112 KB Output is correct
26 Correct 51 ms 12052 KB Output is correct
27 Correct 128 ms 22352 KB Output is correct
28 Correct 116 ms 22100 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 5 ms 1264 KB Output is correct
37 Correct 119 ms 22100 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 5 ms 1116 KB Output is correct
41 Correct 119 ms 22036 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 62 ms 12056 KB Output is correct
46 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
47 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 125 ms 22100 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1108 KB Output is correct
13 Correct 125 ms 22284 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 54 ms 12240 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 5736 KB Output is correct
21 Correct 118 ms 22096 KB Output is correct
22 Correct 122 ms 22036 KB Output is correct
23 Correct 126 ms 22096 KB Output is correct
24 Correct 117 ms 22096 KB Output is correct
25 Correct 54 ms 12112 KB Output is correct
26 Correct 51 ms 12052 KB Output is correct
27 Correct 128 ms 22352 KB Output is correct
28 Correct 116 ms 22100 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 5 ms 1264 KB Output is correct
37 Correct 119 ms 22100 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 5 ms 1116 KB Output is correct
41 Correct 119 ms 22036 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 62 ms 12056 KB Output is correct
46 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
47 Halted 0 ms 0 KB -