oj.uz

Submission #975320

# Submission time Handle Problem Language Result Execution time Memory
975320 2024-05-04T18:48:12 Z raspy Connecting Supertrees (IOI20_supertrees) C++14
96 / 100
 192 ms 22916 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 && par(i)-par(j))
			{
				if (tip[i] == 2 || tip[j] == 2)
					return 0;
				tip[i] = tip[j] = 3;
				dalje3 = 1;
				zd(i, j);
			}
		}
	if (dalje3)
	{
		for (int i = 0; i < n; i++)
		{
			int x = par(i);
			if (obd3[x] || tip[x] != 3)
				continue;
			obd3[x] = 1;
			vector<int> tr = el[x];
			if (tr.size() <= 3)
				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;
			}
			gr[x][tr[2]] = gr[tr[2]][x] = 1;
		}
	}
	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 856 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 860 KB Output is correct
6 Correct 7 ms 1728 KB Output is correct
7 Correct 155 ms 22516 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 856 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 860 KB Output is correct
6 Correct 7 ms 1728 KB Output is correct
7 Correct 155 ms 22516 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 8 ms 1628 KB Output is correct
13 Correct 152 ms 22500 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 0 ms 860 KB Output is correct
16 Correct 4 ms 1324 KB Output is correct
17 Correct 69 ms 12628 KB Output is correct
18 Correct 1 ms 860 KB Output is correct
19 Correct 1 ms 860 KB Output is correct
20 Correct 39 ms 6232 KB Output is correct
21 Correct 154 ms 22608 KB Output is correct
22 Correct 152 ms 22612 KB Output is correct
23 Correct 166 ms 22612 KB Output is correct
24 Correct 151 ms 22612 KB Output is correct
25 Correct 62 ms 12628 KB Output is correct
26 Correct 65 ms 12628 KB Output is correct
27 Correct 157 ms 22504 KB Output is correct
28 Correct 160 ms 22612 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 856 KB Output is correct
2 Correct 2 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 860 KB Output is correct
6 Correct 0 ms 860 KB Output is correct
7 Correct 0 ms 860 KB Output is correct
8 Correct 6 ms 1628 KB Output is correct
9 Correct 151 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 8 ms 1628 KB Output is correct
13 Correct 156 ms 22520 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 12628 KB Output is correct
18 Correct 1 ms 1112 KB Output is correct
19 Correct 1 ms 860 KB Output is correct
20 Correct 1 ms 856 KB Output is correct
21 Correct 39 ms 6216 KB Output is correct
22 Correct 153 ms 22612 KB Output is correct
23 Correct 164 ms 22916 KB Output is correct
24 Correct 165 ms 22608 KB Output is correct
25 Correct 66 ms 12632 KB Output is correct
26 Correct 66 ms 12628 KB Output is correct
27 Correct 151 ms 22668 KB Output is correct
28 Correct 163 ms 22516 KB Output is correct
29 Correct 61 ms 12536 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 0 ms 860 KB Output is correct
4 Correct 39 ms 6304 KB Output is correct
5 Correct 162 ms 22500 KB Output is correct
6 Correct 152 ms 22512 KB Output is correct
7 Correct 157 ms 22656 KB Output is correct
8 Correct 0 ms 860 KB Output is correct
9 Correct 39 ms 6200 KB Output is correct
10 Correct 192 ms 22612 KB Output is correct
11 Correct 152 ms 22496 KB Output is correct
12 Correct 157 ms 22608 KB Output is correct
13 Correct 0 ms 860 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 1 ms 860 KB Output is correct
16 Correct 39 ms 6368 KB Output is correct
17 Correct 167 ms 22868 KB Output is correct
18 Correct 153 ms 22820 KB Output is correct
19 Correct 152 ms 22612 KB Output is correct
20 Correct 150 ms 22608 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 856 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 860 KB Output is correct
6 Correct 7 ms 1728 KB Output is correct
7 Correct 155 ms 22516 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 8 ms 1628 KB Output is correct
13 Correct 152 ms 22500 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 0 ms 860 KB Output is correct
16 Correct 4 ms 1324 KB Output is correct
17 Correct 69 ms 12628 KB Output is correct
18 Correct 1 ms 860 KB Output is correct
19 Correct 1 ms 860 KB Output is correct
20 Correct 39 ms 6232 KB Output is correct
21 Correct 154 ms 22608 KB Output is correct
22 Correct 152 ms 22612 KB Output is correct
23 Correct 166 ms 22612 KB Output is correct
24 Correct 151 ms 22612 KB Output is correct
25 Correct 62 ms 12628 KB Output is correct
26 Correct 65 ms 12628 KB Output is correct
27 Correct 157 ms 22504 KB Output is correct
28 Correct 160 ms 22612 KB Output is correct
29 Correct 1 ms 856 KB Output is correct
30 Correct 2 ms 860 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 1 ms 860 KB Output is correct
33 Correct 1 ms 860 KB Output is correct
34 Correct 0 ms 860 KB Output is correct
35 Correct 0 ms 860 KB Output is correct
36 Correct 6 ms 1628 KB Output is correct
37 Correct 151 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 8 ms 1628 KB Output is correct
41 Correct 156 ms 22520 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 12628 KB Output is correct
46 Correct 1 ms 1112 KB Output is correct
47 Correct 1 ms 860 KB Output is correct
48 Correct 1 ms 856 KB Output is correct
49 Correct 39 ms 6216 KB Output is correct
50 Correct 153 ms 22612 KB Output is correct
51 Correct 164 ms 22916 KB Output is correct
52 Correct 165 ms 22608 KB Output is correct
53 Correct 66 ms 12632 KB Output is correct
54 Correct 66 ms 12628 KB Output is correct
55 Correct 151 ms 22668 KB Output is correct
56 Correct 163 ms 22516 KB Output is correct
57 Correct 61 ms 12536 KB Output is correct
58 Correct 1 ms 856 KB Output is correct
59 Correct 1 ms 860 KB Output is correct
60 Correct 3 ms 1372 KB Output is correct
61 Correct 69 ms 12628 KB Output is correct
62 Correct 1 ms 860 KB Output is correct
63 Correct 0 ms 860 KB Output is correct
64 Correct 1 ms 1112 KB Output is correct
65 Correct 38 ms 6384 KB Output is correct
66 Correct 61 ms 12624 KB Output is correct
67 Correct 62 ms 12772 KB Output is correct
68 Correct 63 ms 13020 KB Output is correct
69 Correct 61 ms 12624 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 856 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 860 KB Output is correct
6 Correct 7 ms 1728 KB Output is correct
7 Correct 155 ms 22516 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 8 ms 1628 KB Output is correct
13 Correct 152 ms 22500 KB Output is correct
14 Correct 1 ms 860 KB Output is correct
15 Correct 0 ms 860 KB Output is correct
16 Correct 4 ms 1324 KB Output is correct
17 Correct 69 ms 12628 KB Output is correct
18 Correct 1 ms 860 KB Output is correct
19 Correct 1 ms 860 KB Output is correct
20 Correct 39 ms 6232 KB Output is correct
21 Correct 154 ms 22608 KB Output is correct
22 Correct 152 ms 22612 KB Output is correct
23 Correct 166 ms 22612 KB Output is correct
24 Correct 151 ms 22612 KB Output is correct
25 Correct 62 ms 12628 KB Output is correct
26 Correct 65 ms 12628 KB Output is correct
27 Correct 157 ms 22504 KB Output is correct
28 Correct 160 ms 22612 KB Output is correct
29 Correct 1 ms 856 KB Output is correct
30 Correct 2 ms 860 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 1 ms 860 KB Output is correct
33 Correct 1 ms 860 KB Output is correct
34 Correct 0 ms 860 KB Output is correct
35 Correct 0 ms 860 KB Output is correct
36 Correct 6 ms 1628 KB Output is correct
37 Correct 151 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 8 ms 1628 KB Output is correct
41 Correct 156 ms 22520 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 12628 KB Output is correct
46 Correct 1 ms 1112 KB Output is correct
47 Correct 1 ms 860 KB Output is correct
48 Correct 1 ms 856 KB Output is correct
49 Correct 39 ms 6216 KB Output is correct
50 Correct 153 ms 22612 KB Output is correct
51 Correct 164 ms 22916 KB Output is correct
52 Correct 165 ms 22608 KB Output is correct
53 Correct 66 ms 12632 KB Output is correct
54 Correct 66 ms 12628 KB Output is correct
55 Correct 151 ms 22668 KB Output is correct
56 Correct 163 ms 22516 KB Output is correct
57 Correct 61 ms 12536 KB Output is correct
58 Correct 0 ms 856 KB Output is correct
59 Correct 1 ms 860 KB Output is correct
60 Correct 0 ms 860 KB Output is correct
61 Correct 39 ms 6304 KB Output is correct
62 Correct 162 ms 22500 KB Output is correct
63 Correct 152 ms 22512 KB Output is correct
64 Correct 157 ms 22656 KB Output is correct
65 Correct 0 ms 860 KB Output is correct
66 Correct 39 ms 6200 KB Output is correct
67 Correct 192 ms 22612 KB Output is correct
68 Correct 152 ms 22496 KB Output is correct
69 Correct 157 ms 22608 KB Output is correct
70 Correct 0 ms 860 KB Output is correct
71 Correct 1 ms 860 KB Output is correct
72 Correct 1 ms 860 KB Output is correct
73 Correct 39 ms 6368 KB Output is correct
74 Correct 167 ms 22868 KB Output is correct
75 Correct 153 ms 22820 KB Output is correct
76 Correct 152 ms 22612 KB Output is correct
77 Correct 150 ms 22608 KB Output is correct
78 Correct 1 ms 856 KB Output is correct
79 Correct 1 ms 860 KB Output is correct
80 Correct 3 ms 1372 KB Output is correct
81 Correct 69 ms 12628 KB Output is correct
82 Correct 1 ms 860 KB Output is correct
83 Correct 0 ms 860 KB Output is correct
84 Correct 1 ms 1112 KB Output is correct
85 Correct 38 ms 6384 KB Output is correct
86 Correct 61 ms 12624 KB Output is correct
87 Correct 62 ms 12772 KB Output is correct
88 Correct 63 ms 13020 KB Output is correct
89 Correct 61 ms 12624 KB Output is correct
90 Correct 1 ms 856 KB Output is correct
91 Correct 0 ms 860 KB Output is correct
92 Correct 3 ms 1372 KB Output is correct
93 Correct 92 ms 12628 KB Output is correct
94 Incorrect 1 ms 856 KB Answer gives possible 1 while actual possible 0
95 Halted 0 ms 0 KB -