Submission #792724

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
792724	2023-07-25T08:18:01 Z	mousebeaver	Connecting Supertrees (IOI20_supertrees)	C++14	11 / 100	180 ms	23044 KB

supertrees

#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;

int construct(vector<vector<int>> p) 
{
	int n = p.size();
	vector<bool> used(n, false);
	vector<vector<int>> adjmatrix(n, vector<int> (n, 0));

	for(int i = 0; i < n; i++)
	{
		if(used[i]) continue;

		//Collect the component:
		vector<int> component(0);
		for(int j = 0; j < n; j++)
		{
			if(p[i][j] == 3)
			{
				return 0;
			}
			if(p[i][j])
			{
				component.push_back(j);
				used[j] = true;
			}
		}

		for(int j : component)
		{
			if(count(p[j].begin(), p[j].end(), 0) != n- (int) component.size())
			{
				return 0;
			}
		}

		//Build the forest:
		vector<bool> tree(component.size(), false);
		vector<vector<int>> forest(0);
		for(int j = 0; j < (int) component.size(); j++)
		{
			if(tree[j]) continue;
			vector<int> t(0);
			for(int k = 0; k < (int) component.size(); k++)
			{
				if(p[j][k] == 1)
				{
					t.push_back(k);
					tree[k] = true;
				}
			}
			forest.push_back(t);

			//Build the tree:
			for(int k = 0; k < (int) t.size()-1; k++)
			{
				adjmatrix[t[k]][t[k+1]] = 1;
				adjmatrix[t[k+1]][t[k]] = 1;
			}
		}

		//Test the partitioning:
		for(int j = 0; j < (int) forest.size(); j++)
		{
			for(int a : forest[j])
			{
				for(int k = 0; k < (int) forest.size(); k++)
				{
					for(int b : forest[k])
					{
						if((k == j && p[a][b] != 1) ||
							(k != j && p[a][b] != 2))
							{
								return 0;
							}
					}
				}
			}
		}

		//Connect the trees:
		if(forest.size() == 2)
		{
			return 0;
		}
		if(forest.size() > 2)
		{
			for(int j = 0; j < (int) forest.size()-1; j++)
			{
				adjmatrix[forest[j][0]][forest[j+1][0]] = 1;
				adjmatrix[forest[j+1][0]][forest[j][0]] = 1;
			}
			adjmatrix[forest[0][0]][forest[forest.size()-1][0]] = 1;
			adjmatrix[forest[forest.size()-1][0]][forest[0][0]] = 1;
		}
	}

	build(adjmatrix);
	return 1;
}

Subtask #1
11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	7 ms	1180 KB	Output is correct
7	Correct	180 ms	21984 KB	Output is correct

Subtask #2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	7 ms	1180 KB	Output is correct
7	Correct	180 ms	21984 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	300 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	7 ms	1176 KB	Output is correct
13	Correct	155 ms	23044 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	3 ms	824 KB	Output is correct
17	Correct	83 ms	13220 KB	Output is correct
18	Correct	0 ms	304 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Incorrect	15 ms	3704 KB	Answer gives possible 0 while actual possible 1
21	Halted	0 ms	0 KB	-

Subtask #3
0 / 19.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	300 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	7 ms	1236 KB	Output is correct
9	Correct	157 ms	22352 KB	Output is correct
10	Correct	0 ms	304 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	7 ms	1224 KB	Output is correct
13	Correct	162 ms	22348 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	3 ms	852 KB	Output is correct
17	Correct	64 ms	12804 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	300 KB	Output is correct
21	Incorrect	15 ms	3504 KB	Answer gives possible 0 while actual possible 1
22	Halted	0 ms	0 KB	-

Subtask #4
0 / 35.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Incorrect	1 ms	212 KB	Answer gives possible 0 while actual possible 1
4	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	7 ms	1180 KB	Output is correct
7	Correct	180 ms	21984 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	300 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	7 ms	1176 KB	Output is correct
13	Correct	155 ms	23044 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	3 ms	824 KB	Output is correct
17	Correct	83 ms	13220 KB	Output is correct
18	Correct	0 ms	304 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Incorrect	15 ms	3704 KB	Answer gives possible 0 while actual possible 1
21	Halted	0 ms	0 KB	-

Subtask #6
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	7 ms	1180 KB	Output is correct
7	Correct	180 ms	21984 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	300 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	7 ms	1176 KB	Output is correct
13	Correct	155 ms	23044 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	3 ms	824 KB	Output is correct
17	Correct	83 ms	13220 KB	Output is correct
18	Correct	0 ms	304 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Incorrect	15 ms	3704 KB	Answer gives possible 0 while actual possible 1
21	Halted	0 ms	0 KB	-

Submission #792724

Compilation message

Subtask #1 11.0 / 11.0

Subtask #2 0 / 10.0

Subtask #3 0 / 19.0

Subtask #4 0 / 35.0

Subtask #5 0 / 21.0

Subtask #6 0 / 4.0

Subtask #1
11.0 / 11.0

Subtask #2
0 / 10.0

Subtask #3
0 / 19.0

Subtask #4
0 / 35.0

Subtask #5
0 / 21.0

Subtask #6
0 / 4.0