oj.uz

Submission #975324

# Submission time Handle Problem Language Result Execution time Memory
975324 2024-05-04T19:08:53 Z raspy Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 183 ms 22872 KB 
#include "supertrees.h"
#include <vector>
#include <iostream>

using namespace std;

bool obd[20005];
bool obd3[20005];
int dis[20005];
int tip[20005];
vector<int> el[20005];

int par(int x)
{
	return dis[x] = (dis[x] == x ? x : par(dis[x]));
}

void zd(int x, int y, bool zlij = true)
{
	x = par(x);
	y = par(y);
	if (x == y)
		return;
	if (el[x].size() < el[y].size())
		swap(x, y);
	if (zlij)
	{
		if (el[x].empty())
			el[x].push_back(x);
		if (el[y].empty())
			el[y].push_back(y);
		for (auto e : el[y])
			el[x].push_back(e);
	}
	dis[y] = x;
	return;
}

int construct(vector<vector<int>> p)
{
	int n = p.size();
	vector<vector<int>> gr(n, vector<int>(n, 0));
	for (int i = 0; i <= n; i++)
		dis[i] = i;
	for (int i = 0; i < n; i++)
		for (int j = i+1; j < n; j++)
		{
			if (p[i][j] == 1 && par(i)-par(j))
			{
				gr[par(i)][par(j)] = gr[par(j)][par(i)] = 1;
				zd(i, j, 0);
			}
		}
	int dalje2 = 0;
	for (int i = 0; i < n; i++)
		for (int j = i+1; j < n; j++)
		{
			if (p[i][j] == 2 && par(i)-par(j))
			{
				tip[i] = tip[j] = 2;
				dalje2 = 1;
				zd(i, j);
			}
		}
	if (dalje2)
	{
		for (int i = 0; i < n; i++)
		{
			int x = par(i);
			if (obd[x] || tip[x] != 2)
				continue;
			obd[x] = 1;	
			vector<int> tr = el[x];
			if (tr.size() <= 2)
				return 0;
			tr.push_back(x);
			int pr = -1;
			for (auto v : tr)
			{
				if (pr+1)
					gr[v][pr] = gr[pr][v] = 1;
				pr = v;
			}
		}
	}
	int dalje3 = 0;
	for (int i = 0; i < n; i++)
		for (int j = i+1; j < n; j++)
		{
			if (p[i][j] == 3)
			{
				if (tip[i] == 2 || tip[j] == 2)
					return 0;
				// cout << i << " " << j << " " << tip[i] << " " << tip[j] << "\n";
				tip[i] = tip[j] = 3;
				dalje3 = 1;
				zd(i, j);
			}
		}
	if (dalje3)
		return 0;
	for (int i = 0; i < n; i++)
		for (int j = i+1; j < n; j++)
		{
			if (p[i][j] == 0 && par(i) == par(j))
				return 0;
			if (p[i][j] && par(i) != par(j))
				return 0;
			if (p[i][j] && tip[i] && tip[j] && tip[i] != tip[j])
				return 0;
		}
	build(gr);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 9 ms 1628 KB Output is correct
7 Correct 159 ms 22512 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 9 ms 1628 KB Output is correct
7 Correct 159 ms 22512 KB Output is correct
8 Correct 1 ms 860 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 1 ms 860 KB Output is correct
11 Correct 1 ms 860 KB Output is correct
12 Correct 7 ms 1628 KB Output is correct
13 Correct 147 ms 22608 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 1 ms 860 KB Output is correct
16 Correct 3 ms 1368 KB Output is correct
17 Correct 80 ms 12532 KB Output is correct
18 Correct 1 ms 860 KB Output is correct
19 Correct 1 ms 860 KB Output is correct
20 Correct 38 ms 6156 KB Output is correct
21 Correct 152 ms 22532 KB Output is correct
22 Correct 160 ms 22500 KB Output is correct
23 Correct 170 ms 22608 KB Output is correct
24 Correct 167 ms 22584 KB Output is correct
25 Correct 65 ms 12624 KB Output is correct
26 Correct 60 ms 12512 KB Output is correct
27 Correct 157 ms 22608 KB Output is correct
28 Correct 149 ms 22552 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 0 ms 860 KB Output is correct
5 Correct 0 ms 860 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 1 ms 860 KB Output is correct
8 Correct 7 ms 1628 KB Output is correct
9 Correct 158 ms 22612 KB Output is correct
10 Correct 1 ms 860 KB Output is correct
11 Correct 1 ms 860 KB Output is correct
12 Correct 7 ms 1624 KB Output is correct
13 Correct 162 ms 22500 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 1 ms 860 KB Output is correct
16 Correct 3 ms 1372 KB Output is correct
17 Correct 68 ms 12804 KB Output is correct
18 Correct 0 ms 860 KB Output is correct
19 Correct 0 ms 860 KB Output is correct
20 Correct 0 ms 860 KB Output is correct
21 Correct 39 ms 6364 KB Output is correct
22 Correct 183 ms 22500 KB Output is correct
23 Correct 150 ms 22612 KB Output is correct
24 Correct 161 ms 22684 KB Output is correct
25 Correct 60 ms 12516 KB Output is correct
26 Correct 61 ms 12788 KB Output is correct
27 Correct 151 ms 22868 KB Output is correct
28 Correct 154 ms 22612 KB Output is correct
29 Correct 67 ms 12520 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 47 ms 6344 KB Output is correct
5 Correct 148 ms 22612 KB Output is correct
6 Correct 151 ms 22824 KB Output is correct
7 Correct 158 ms 22612 KB Output is correct
8 Correct 1 ms 860 KB Output is correct
9 Correct 40 ms 6252 KB Output is correct
10 Correct 153 ms 22612 KB Output is correct
11 Correct 150 ms 22612 KB Output is correct
12 Correct 155 ms 22516 KB Output is correct
13 Correct 1 ms 860 KB Output is correct
14 Correct 0 ms 860 KB Output is correct
15 Correct 0 ms 860 KB Output is correct
16 Correct 41 ms 6228 KB Output is correct
17 Correct 151 ms 22532 KB Output is correct
18 Correct 158 ms 22512 KB Output is correct
19 Correct 148 ms 22588 KB Output is correct
20 Correct 182 ms 22872 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 9 ms 1628 KB Output is correct
7 Correct 159 ms 22512 KB Output is correct
8 Correct 1 ms 860 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 1 ms 860 KB Output is correct
11 Correct 1 ms 860 KB Output is correct
12 Correct 7 ms 1628 KB Output is correct
13 Correct 147 ms 22608 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 1 ms 860 KB Output is correct
16 Correct 3 ms 1368 KB Output is correct
17 Correct 80 ms 12532 KB Output is correct
18 Correct 1 ms 860 KB Output is correct
19 Correct 1 ms 860 KB Output is correct
20 Correct 38 ms 6156 KB Output is correct
21 Correct 152 ms 22532 KB Output is correct
22 Correct 160 ms 22500 KB Output is correct
23 Correct 170 ms 22608 KB Output is correct
24 Correct 167 ms 22584 KB Output is correct
25 Correct 65 ms 12624 KB Output is correct
26 Correct 60 ms 12512 KB Output is correct
27 Correct 157 ms 22608 KB Output is correct
28 Correct 149 ms 22552 KB Output is correct
29 Correct 1 ms 860 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 0 ms 860 KB Output is correct
33 Correct 0 ms 860 KB Output is correct
34 Correct 1 ms 860 KB Output is correct
35 Correct 1 ms 860 KB Output is correct
36 Correct 7 ms 1628 KB Output is correct
37 Correct 158 ms 22612 KB Output is correct
38 Correct 1 ms 860 KB Output is correct
39 Correct 1 ms 860 KB Output is correct
40 Correct 7 ms 1624 KB Output is correct
41 Correct 162 ms 22500 KB Output is correct
42 Correct 1 ms 860 KB Output is correct
43 Correct 1 ms 860 KB Output is correct
44 Correct 3 ms 1372 KB Output is correct
45 Correct 68 ms 12804 KB Output is correct
46 Correct 0 ms 860 KB Output is correct
47 Correct 0 ms 860 KB Output is correct
48 Correct 0 ms 860 KB Output is correct
49 Correct 39 ms 6364 KB Output is correct
50 Correct 183 ms 22500 KB Output is correct
51 Correct 150 ms 22612 KB Output is correct
52 Correct 161 ms 22684 KB Output is correct
53 Correct 60 ms 12516 KB Output is correct
54 Correct 61 ms 12788 KB Output is correct
55 Correct 151 ms 22868 KB Output is correct
56 Correct 154 ms 22612 KB Output is correct
57 Correct 67 ms 12520 KB Output is correct
58 Correct 0 ms 860 KB Output is correct
59 Correct 1 ms 860 KB Output is correct
60 Correct 4 ms 1372 KB Output is correct
61 Correct 69 ms 12528 KB Output is correct
62 Correct 1 ms 860 KB Output is correct
63 Correct 1 ms 860 KB Output is correct
64 Correct 1 ms 860 KB Output is correct
65 Correct 41 ms 6396 KB Output is correct
66 Correct 61 ms 12772 KB Output is correct
67 Correct 61 ms 12632 KB Output is correct
68 Correct 61 ms 12628 KB Output is correct
69 Correct 62 ms 12516 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 860 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 9 ms 1628 KB Output is correct
7 Correct 159 ms 22512 KB Output is correct
8 Correct 1 ms 860 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 1 ms 860 KB Output is correct
11 Correct 1 ms 860 KB Output is correct
12 Correct 7 ms 1628 KB Output is correct
13 Correct 147 ms 22608 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 1 ms 860 KB Output is correct
16 Correct 3 ms 1368 KB Output is correct
17 Correct 80 ms 12532 KB Output is correct
18 Correct 1 ms 860 KB Output is correct
19 Correct 1 ms 860 KB Output is correct
20 Correct 38 ms 6156 KB Output is correct
21 Correct 152 ms 22532 KB Output is correct
22 Correct 160 ms 22500 KB Output is correct
23 Correct 170 ms 22608 KB Output is correct
24 Correct 167 ms 22584 KB Output is correct
25 Correct 65 ms 12624 KB Output is correct
26 Correct 60 ms 12512 KB Output is correct
27 Correct 157 ms 22608 KB Output is correct
28 Correct 149 ms 22552 KB Output is correct
29 Correct 1 ms 860 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 0 ms 860 KB Output is correct
33 Correct 0 ms 860 KB Output is correct
34 Correct 1 ms 860 KB Output is correct
35 Correct 1 ms 860 KB Output is correct
36 Correct 7 ms 1628 KB Output is correct
37 Correct 158 ms 22612 KB Output is correct
38 Correct 1 ms 860 KB Output is correct
39 Correct 1 ms 860 KB Output is correct
40 Correct 7 ms 1624 KB Output is correct
41 Correct 162 ms 22500 KB Output is correct
42 Correct 1 ms 860 KB Output is correct
43 Correct 1 ms 860 KB Output is correct
44 Correct 3 ms 1372 KB Output is correct
45 Correct 68 ms 12804 KB Output is correct
46 Correct 0 ms 860 KB Output is correct
47 Correct 0 ms 860 KB Output is correct
48 Correct 0 ms 860 KB Output is correct
49 Correct 39 ms 6364 KB Output is correct
50 Correct 183 ms 22500 KB Output is correct
51 Correct 150 ms 22612 KB Output is correct
52 Correct 161 ms 22684 KB Output is correct
53 Correct 60 ms 12516 KB Output is correct
54 Correct 61 ms 12788 KB Output is correct
55 Correct 151 ms 22868 KB Output is correct
56 Correct 154 ms 22612 KB Output is correct
57 Correct 67 ms 12520 KB Output is correct
58 Correct 1 ms 860 KB Output is correct
59 Correct 1 ms 860 KB Output is correct
60 Correct 1 ms 860 KB Output is correct
61 Correct 47 ms 6344 KB Output is correct
62 Correct 148 ms 22612 KB Output is correct
63 Correct 151 ms 22824 KB Output is correct
64 Correct 158 ms 22612 KB Output is correct
65 Correct 1 ms 860 KB Output is correct
66 Correct 40 ms 6252 KB Output is correct
67 Correct 153 ms 22612 KB Output is correct
68 Correct 150 ms 22612 KB Output is correct
69 Correct 155 ms 22516 KB Output is correct
70 Correct 1 ms 860 KB Output is correct
71 Correct 0 ms 860 KB Output is correct
72 Correct 0 ms 860 KB Output is correct
73 Correct 41 ms 6228 KB Output is correct
74 Correct 151 ms 22532 KB Output is correct
75 Correct 158 ms 22512 KB Output is correct
76 Correct 148 ms 22588 KB Output is correct
77 Correct 182 ms 22872 KB Output is correct
78 Correct 0 ms 860 KB Output is correct
79 Correct 1 ms 860 KB Output is correct
80 Correct 4 ms 1372 KB Output is correct
81 Correct 69 ms 12528 KB Output is correct
82 Correct 1 ms 860 KB Output is correct
83 Correct 1 ms 860 KB Output is correct
84 Correct 1 ms 860 KB Output is correct
85 Correct 41 ms 6396 KB Output is correct
86 Correct 61 ms 12772 KB Output is correct
87 Correct 61 ms 12632 KB Output is correct
88 Correct 61 ms 12628 KB Output is correct
89 Correct 62 ms 12516 KB Output is correct
90 Correct 0 ms 856 KB Output is correct
91 Correct 1 ms 860 KB Output is correct
92 Correct 3 ms 1372 KB Output is correct
93 Correct 68 ms 12628 KB Output is correct
94 Correct 0 ms 860 KB Output is correct
95 Correct 1 ms 860 KB Output is correct
96 Correct 1 ms 860 KB Output is correct
97 Correct 18 ms 3676 KB Output is correct
98 Correct 62 ms 12768 KB Output is correct
99 Correct 64 ms 12532 KB Output is correct
100 Correct 63 ms 12772 KB Output is correct
101 Correct 59 ms 12528 KB Output is correct
102 Correct 66 ms 12624 KB Output is correct
103 Correct 62 ms 14676 KB Output is correct
104 Correct 68 ms 14680 KB Output is correct
105 Correct 74 ms 14928 KB Output is correct