oj.uz

Submission #792758

# Submission time Handle Problem Language Result Execution time Memory
792758 2023-07-25T08:31:24 Z mousebeaver Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 192 ms 24008 KB 
#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] > 0)
			{
				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;
			}
			for(int k : component)
			{
				if(p[k][j] == 0)
				{
					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[component[j]][component[k]] == 1)
				{
					t.push_back(component[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 10 ms 1176 KB Output is correct
7 Correct 169 ms 22040 KB Output is correct

Subtask #2
10.0 / 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 10 ms 1176 KB Output is correct
7 Correct 169 ms 22040 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 152 ms 22012 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 73 ms 12040 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5768 KB Output is correct
21 Correct 164 ms 23932 KB Output is correct
22 Correct 155 ms 23968 KB Output is correct
23 Correct 187 ms 23924 KB Output is correct
24 Correct 153 ms 23888 KB Output is correct
25 Correct 71 ms 14064 KB Output is correct
26 Correct 67 ms 14076 KB Output is correct
27 Correct 160 ms 23940 KB Output is correct
28 Correct 156 ms 23928 KB Output is correct

Subtask #3
19.0 / 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 7 ms 1108 KB Output is correct
9 Correct 153 ms 22028 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 159 ms 22020 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 77 ms 12040 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 42 ms 5656 KB Output is correct
22 Correct 159 ms 23924 KB Output is correct
23 Correct 154 ms 23916 KB Output is correct
24 Correct 165 ms 23924 KB Output is correct
25 Correct 67 ms 14068 KB Output is correct
26 Correct 72 ms 14080 KB Output is correct
27 Correct 161 ms 23944 KB Output is correct
28 Correct 192 ms 23980 KB Output is correct
29 Correct 67 ms 13996 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 40 ms 6220 KB Output is correct
5 Correct 156 ms 23984 KB Output is correct
6 Correct 165 ms 23972 KB Output is correct
7 Correct 162 ms 23924 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 39 ms 6212 KB Output is correct
10 Correct 162 ms 23928 KB Output is correct
11 Correct 160 ms 24008 KB Output is correct
12 Correct 168 ms 23920 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 296 KB Output is correct
16 Correct 39 ms 6232 KB Output is correct
17 Correct 156 ms 23988 KB Output is correct
18 Correct 167 ms 23948 KB Output is correct
19 Correct 153 ms 23928 KB Output is correct
20 Correct 159 ms 24008 KB Output is correct

Subtask #5
21.0 / 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 10 ms 1176 KB Output is correct
7 Correct 169 ms 22040 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 152 ms 22012 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 73 ms 12040 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5768 KB Output is correct
21 Correct 164 ms 23932 KB Output is correct
22 Correct 155 ms 23968 KB Output is correct
23 Correct 187 ms 23924 KB Output is correct
24 Correct 153 ms 23888 KB Output is correct
25 Correct 71 ms 14064 KB Output is correct
26 Correct 67 ms 14076 KB Output is correct
27 Correct 160 ms 23940 KB Output is correct
28 Correct 156 ms 23928 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1108 KB Output is correct
37 Correct 153 ms 22028 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1108 KB Output is correct
41 Correct 159 ms 22020 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 724 KB Output is correct
45 Correct 77 ms 12040 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 42 ms 5656 KB Output is correct
50 Correct 159 ms 23924 KB Output is correct
51 Correct 154 ms 23916 KB Output is correct
52 Correct 165 ms 23924 KB Output is correct
53 Correct 67 ms 14068 KB Output is correct
54 Correct 72 ms 14080 KB Output is correct
55 Correct 161 ms 23944 KB Output is correct
56 Correct 192 ms 23980 KB Output is correct
57 Correct 67 ms 13996 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 3 ms 852 KB Output is correct
61 Correct 71 ms 14068 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 39 ms 6220 KB Output is correct
66 Correct 71 ms 14068 KB Output is correct
67 Correct 68 ms 14080 KB Output is correct
68 Correct 68 ms 14080 KB Output is correct
69 Correct 69 ms 14072 KB Output is correct

Subtask #6
4.0 / 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 10 ms 1176 KB Output is correct
7 Correct 169 ms 22040 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 152 ms 22012 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 73 ms 12040 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5768 KB Output is correct
21 Correct 164 ms 23932 KB Output is correct
22 Correct 155 ms 23968 KB Output is correct
23 Correct 187 ms 23924 KB Output is correct
24 Correct 153 ms 23888 KB Output is correct
25 Correct 71 ms 14064 KB Output is correct
26 Correct 67 ms 14076 KB Output is correct
27 Correct 160 ms 23940 KB Output is correct
28 Correct 156 ms 23928 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1108 KB Output is correct
37 Correct 153 ms 22028 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1108 KB Output is correct
41 Correct 159 ms 22020 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 724 KB Output is correct
45 Correct 77 ms 12040 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 42 ms 5656 KB Output is correct
50 Correct 159 ms 23924 KB Output is correct
51 Correct 154 ms 23916 KB Output is correct
52 Correct 165 ms 23924 KB Output is correct
53 Correct 67 ms 14068 KB Output is correct
54 Correct 72 ms 14080 KB Output is correct
55 Correct 161 ms 23944 KB Output is correct
56 Correct 192 ms 23980 KB Output is correct
57 Correct 67 ms 13996 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 40 ms 6220 KB Output is correct
62 Correct 156 ms 23984 KB Output is correct
63 Correct 165 ms 23972 KB Output is correct
64 Correct 162 ms 23924 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 39 ms 6212 KB Output is correct
67 Correct 162 ms 23928 KB Output is correct
68 Correct 160 ms 24008 KB Output is correct
69 Correct 168 ms 23920 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 296 KB Output is correct
73 Correct 39 ms 6232 KB Output is correct
74 Correct 156 ms 23988 KB Output is correct
75 Correct 167 ms 23948 KB Output is correct
76 Correct 153 ms 23928 KB Output is correct
77 Correct 159 ms 24008 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 3 ms 852 KB Output is correct
81 Correct 71 ms 14068 KB Output is correct
82 Correct 1 ms 212 KB Output is correct
83 Correct 1 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 39 ms 6220 KB Output is correct
86 Correct 71 ms 14068 KB Output is correct
87 Correct 68 ms 14080 KB Output is correct
88 Correct 68 ms 14080 KB Output is correct
89 Correct 69 ms 14072 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 0 ms 300 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 69 ms 14080 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 0 ms 296 KB Output is correct
97 Correct 18 ms 3668 KB Output is correct
98 Correct 70 ms 14072 KB Output is correct
99 Correct 70 ms 14072 KB Output is correct
100 Correct 68 ms 14028 KB Output is correct
101 Correct 67 ms 14064 KB Output is correct
102 Correct 68 ms 14076 KB Output is correct
103 Correct 68 ms 14064 KB Output is correct
104 Correct 68 ms 14156 KB Output is correct
105 Correct 74 ms 14064 KB Output is correct