oj.uz

Submission #1078774

# Submission time Handle Problem Language Result Execution time Memory
1078774 2024-08-28T06:05:11 Z Muhammad_Aneeq Connecting Supertrees (IOI20_supertrees) C++17
56 / 100
 154 ms 23464 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]&&head[i]!=-1)
				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 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 120 ms 23444 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 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 120 ms 23444 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 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 1372 KB Output is correct
13 Correct 118 ms 23464 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 68 ms 13360 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 6396 KB Output is correct
21 Correct 118 ms 23380 KB Output is correct
22 Correct 131 ms 23464 KB Output is correct
23 Correct 127 ms 23376 KB Output is correct
24 Correct 116 ms 23448 KB Output is correct
25 Correct 52 ms 13512 KB Output is correct
26 Correct 52 ms 13396 KB Output is correct
27 Correct 126 ms 23264 KB Output is correct
28 Correct 134 ms 23380 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 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 6 ms 1212 KB Output is correct
9 Correct 126 ms 23396 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 10 ms 1372 KB Output is correct
13 Correct 116 ms 23280 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 5 ms 860 KB Output is correct
17 Correct 62 ms 13392 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 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 31 ms 6228 KB Output is correct
5 Correct 141 ms 23236 KB Output is correct
6 Correct 125 ms 23452 KB Output is correct
7 Correct 133 ms 23376 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 36 ms 6248 KB Output is correct
10 Correct 137 ms 23388 KB Output is correct
11 Correct 145 ms 23232 KB Output is correct
12 Correct 126 ms 23372 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 31 ms 6268 KB Output is correct
17 Correct 125 ms 23456 KB Output is correct
18 Correct 128 ms 23380 KB Output is correct
19 Correct 154 ms 23424 KB Output is correct
20 Correct 147 ms 23452 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 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 120 ms 23444 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 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 1372 KB Output is correct
13 Correct 118 ms 23464 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 68 ms 13360 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 6396 KB Output is correct
21 Correct 118 ms 23380 KB Output is correct
22 Correct 131 ms 23464 KB Output is correct
23 Correct 127 ms 23376 KB Output is correct
24 Correct 116 ms 23448 KB Output is correct
25 Correct 52 ms 13512 KB Output is correct
26 Correct 52 ms 13396 KB Output is correct
27 Correct 126 ms 23264 KB Output is correct
28 Correct 134 ms 23380 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 6 ms 1212 KB Output is correct
37 Correct 126 ms 23396 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 10 ms 1372 KB Output is correct
41 Correct 116 ms 23280 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 5 ms 860 KB Output is correct
45 Correct 62 ms 13392 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 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 120 ms 23444 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 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 1372 KB Output is correct
13 Correct 118 ms 23464 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 68 ms 13360 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 31 ms 6396 KB Output is correct
21 Correct 118 ms 23380 KB Output is correct
22 Correct 131 ms 23464 KB Output is correct
23 Correct 127 ms 23376 KB Output is correct
24 Correct 116 ms 23448 KB Output is correct
25 Correct 52 ms 13512 KB Output is correct
26 Correct 52 ms 13396 KB Output is correct
27 Correct 126 ms 23264 KB Output is correct
28 Correct 134 ms 23380 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 6 ms 1212 KB Output is correct
37 Correct 126 ms 23396 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 10 ms 1372 KB Output is correct
41 Correct 116 ms 23280 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 5 ms 860 KB Output is correct
45 Correct 62 ms 13392 KB Output is correct
46 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
47 Halted 0 ms 0 KB -