oj.uz

Submission #301624

# Submission time Handle Problem Language Result Execution time Memory
301624 2020-09-18T05:30:30 Z jwvg0425 Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 267 ms 22396 KB 
#include "supertrees.h"
#include <vector>
#include <set>

using namespace std;

int cpar[1005];
int tpar[1005];
set<int> cv[1005];

int tfind(int x)
{
	if (tpar[x] == x)
		return x;

	return tpar[x] = tfind(tpar[x]);
}

void tmerge(int x, int y)
{
	x = tfind(x);
	y = tfind(y);

	tpar[x] = y;
}

int cfind(int x)
{
	if (cpar[x] == x)
		return x;

	return cpar[x] = cfind(cpar[x]);
}

void cmerge(int x, int y)
{
	x = cfind(x);
	y = cfind(y);

	cpar[x] = y;
}

int construct(vector<vector<int>> p)
{
	int n = p.size();

	for (int i = 0; i < n; i++)
		cpar[i] = tpar[i] = i;

	vector<vector<int>> answer;
	for (int i = 0; i < n; i++)
	{
		vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}

	for (int i = 0; i < n; i++)
	{
		for (int j = i + 1; j < n; j++)
		{
			if (p[i][j] == 0)
				continue;

			if (p[i][j] == 1)
			{
				if (tfind(i) == tfind(j))
					continue;

				tmerge(i, j);
				answer[i][j] = answer[j][i] = 1;
				continue;
			}

			if (p[i][j] >= 2)
				cmerge(i, j);
		}
	}

	for (int i = 0; i < n; i++)
	{
		for (int j = i + 1; j < n; j++)
		{
			if (p[i][j] == 0)
			{
				if (cfind(i) == cfind(j) || tfind(i) == tfind(j))
					return 0;
			}

			if (p[i][j] == 1)
			{
				if (tfind(i) != tfind(j))
					return 0;
			}

			if (p[i][j] >= 2)
			{
				if (cfind(i) != cfind(j) || tfind(i) == tfind(j))
					return 0;

				cv[cfind(i)].insert(p[i][j]);
			}
		}
	}

	for (int i = 0; i < n; i++)
	{
		if (cfind(i) != i)
			continue;

		set<int> ts;

		for (int j = 0; j < n; j++)
		{
			if (cfind(j) != i)
				continue;

			ts.insert(tfind(j));
		}

		vector<int> tv;
		for (auto ti : ts)
			tv.push_back(ti);

		int k = tv.size();

		if (k <= 1)
			continue;

		if (cv[i].size() >= 2 || *cv[i].begin() == 3)
			return 0;

		if (k <= 2)
			return 0;

		for (int x = 0; x < k; x++)
		{
			int nx = (x + 1) % k;
			answer[tv[x]][tv[nx]] = answer[tv[nx]][tv[x]] = 1;
		}
	}

	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1280 KB Output is correct
7 Correct 246 ms 22236 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1280 KB Output is correct
7 Correct 246 ms 22236 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 267 ms 22136 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 7 ms 896 KB Output is correct
17 Correct 119 ms 12156 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 70 ms 5880 KB Output is correct
21 Correct 236 ms 22140 KB Output is correct
22 Correct 247 ms 22136 KB Output is correct
23 Correct 258 ms 22168 KB Output is correct
24 Correct 236 ms 22124 KB Output is correct
25 Correct 106 ms 12152 KB Output is correct
26 Correct 96 ms 12156 KB Output is correct
27 Correct 250 ms 22136 KB Output is correct
28 Correct 234 ms 22136 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 11 ms 1280 KB Output is correct
9 Correct 239 ms 22136 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 245 ms 22136 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 116 ms 12152 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 59 ms 5880 KB Output is correct
22 Correct 242 ms 22264 KB Output is correct
23 Correct 234 ms 22264 KB Output is correct
24 Correct 251 ms 22124 KB Output is correct
25 Correct 106 ms 12152 KB Output is correct
26 Correct 100 ms 12152 KB Output is correct
27 Correct 240 ms 22268 KB Output is correct
28 Correct 256 ms 22264 KB Output is correct
29 Correct 103 ms 12152 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 60 ms 5880 KB Output is correct
5 Correct 239 ms 22264 KB Output is correct
6 Correct 236 ms 22268 KB Output is correct
7 Correct 253 ms 22140 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 62 ms 5880 KB Output is correct
10 Correct 237 ms 22136 KB Output is correct
11 Correct 237 ms 22396 KB Output is correct
12 Correct 248 ms 22136 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 59 ms 5880 KB Output is correct
17 Correct 242 ms 22136 KB Output is correct
18 Correct 242 ms 22136 KB Output is correct
19 Correct 241 ms 22264 KB Output is correct
20 Correct 233 ms 22264 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1280 KB Output is correct
7 Correct 246 ms 22236 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 267 ms 22136 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 7 ms 896 KB Output is correct
17 Correct 119 ms 12156 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 70 ms 5880 KB Output is correct
21 Correct 236 ms 22140 KB Output is correct
22 Correct 247 ms 22136 KB Output is correct
23 Correct 258 ms 22168 KB Output is correct
24 Correct 236 ms 22124 KB Output is correct
25 Correct 106 ms 12152 KB Output is correct
26 Correct 96 ms 12156 KB Output is correct
27 Correct 250 ms 22136 KB Output is correct
28 Correct 234 ms 22136 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 11 ms 1280 KB Output is correct
37 Correct 239 ms 22136 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 10 ms 1280 KB Output is correct
41 Correct 245 ms 22136 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 116 ms 12152 KB Output is correct
46 Correct 0 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 0 ms 384 KB Output is correct
49 Correct 59 ms 5880 KB Output is correct
50 Correct 242 ms 22264 KB Output is correct
51 Correct 234 ms 22264 KB Output is correct
52 Correct 251 ms 22124 KB Output is correct
53 Correct 106 ms 12152 KB Output is correct
54 Correct 100 ms 12152 KB Output is correct
55 Correct 240 ms 22268 KB Output is correct
56 Correct 256 ms 22264 KB Output is correct
57 Correct 103 ms 12152 KB Output is correct
58 Correct 0 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 5 ms 928 KB Output is correct
61 Correct 111 ms 12152 KB Output is correct
62 Correct 1 ms 384 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 61 ms 5880 KB Output is correct
66 Correct 100 ms 12152 KB Output is correct
67 Correct 106 ms 12152 KB Output is correct
68 Correct 102 ms 12156 KB Output is correct
69 Correct 107 ms 12152 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1280 KB Output is correct
7 Correct 246 ms 22236 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 267 ms 22136 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 7 ms 896 KB Output is correct
17 Correct 119 ms 12156 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 70 ms 5880 KB Output is correct
21 Correct 236 ms 22140 KB Output is correct
22 Correct 247 ms 22136 KB Output is correct
23 Correct 258 ms 22168 KB Output is correct
24 Correct 236 ms 22124 KB Output is correct
25 Correct 106 ms 12152 KB Output is correct
26 Correct 96 ms 12156 KB Output is correct
27 Correct 250 ms 22136 KB Output is correct
28 Correct 234 ms 22136 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 11 ms 1280 KB Output is correct
37 Correct 239 ms 22136 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 10 ms 1280 KB Output is correct
41 Correct 245 ms 22136 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 116 ms 12152 KB Output is correct
46 Correct 0 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 0 ms 384 KB Output is correct
49 Correct 59 ms 5880 KB Output is correct
50 Correct 242 ms 22264 KB Output is correct
51 Correct 234 ms 22264 KB Output is correct
52 Correct 251 ms 22124 KB Output is correct
53 Correct 106 ms 12152 KB Output is correct
54 Correct 100 ms 12152 KB Output is correct
55 Correct 240 ms 22268 KB Output is correct
56 Correct 256 ms 22264 KB Output is correct
57 Correct 103 ms 12152 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 0 ms 384 KB Output is correct
61 Correct 60 ms 5880 KB Output is correct
62 Correct 239 ms 22264 KB Output is correct
63 Correct 236 ms 22268 KB Output is correct
64 Correct 253 ms 22140 KB Output is correct
65 Correct 0 ms 384 KB Output is correct
66 Correct 62 ms 5880 KB Output is correct
67 Correct 237 ms 22136 KB Output is correct
68 Correct 237 ms 22396 KB Output is correct
69 Correct 248 ms 22136 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Correct 1 ms 384 KB Output is correct
72 Correct 1 ms 384 KB Output is correct
73 Correct 59 ms 5880 KB Output is correct
74 Correct 242 ms 22136 KB Output is correct
75 Correct 242 ms 22136 KB Output is correct
76 Correct 241 ms 22264 KB Output is correct
77 Correct 233 ms 22264 KB Output is correct
78 Correct 0 ms 384 KB Output is correct
79 Correct 1 ms 384 KB Output is correct
80 Correct 5 ms 928 KB Output is correct
81 Correct 111 ms 12152 KB Output is correct
82 Correct 1 ms 384 KB Output is correct
83 Correct 1 ms 384 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 61 ms 5880 KB Output is correct
86 Correct 100 ms 12152 KB Output is correct
87 Correct 106 ms 12152 KB Output is correct
88 Correct 102 ms 12156 KB Output is correct
89 Correct 107 ms 12152 KB Output is correct
90 Correct 1 ms 384 KB Output is correct
91 Correct 0 ms 384 KB Output is correct
92 Correct 5 ms 768 KB Output is correct
93 Correct 146 ms 12152 KB Output is correct
94 Correct 1 ms 384 KB Output is correct
95 Correct 0 ms 384 KB Output is correct
96 Correct 1 ms 384 KB Output is correct
97 Correct 25 ms 3328 KB Output is correct
98 Correct 101 ms 12152 KB Output is correct
99 Correct 103 ms 12152 KB Output is correct
100 Correct 101 ms 12152 KB Output is correct
101 Correct 105 ms 12152 KB Output is correct
102 Correct 118 ms 12288 KB Output is correct
103 Correct 125 ms 12280 KB Output is correct
104 Correct 111 ms 12184 KB Output is correct
105 Correct 113 ms 12152 KB Output is correct