oj.uz

Submission #391167

# Submission time Handle Problem Language Result Execution time Memory
391167 2021-04-18T06:39:47 Z Karnis_052 Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 282 ms 24184 KB 
#include<supertrees.h>
#include<bits/stdc++.h>
using namespace std;

int cpar[1005], spar[1005];
set<int>st[1005];

int sfind(int u)
{
	if (spar[u] == u)
		return u;
	return spar[u] = sfind(spar[u]);
}

void sunion(int x, int y)
{
	x = sfind(x);
	y = sfind(y);
	spar[x] = y;
}

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

void cunion(int x, int y)
{
	x = cfind(x);
	y = cfind(y);
	cpar[x] = y;
}
int construct(vector<vector<int>>p)
{
	int n = p.size();
	vector<vector<int>>answer(n, vector<int>(n, 0));

	for (int i = 0; i < n; i++)
		cpar[i] = spar[i] = i;
	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 (sfind(i) == sfind(j))
					continue;
				sunion(i, j);
				answer[i][j] = answer[j][i] = 1;
			}
			if (p[i][j] >= 2)
				cunion(i, j);
		}
	}

	for (int i = 0; i < n; i++)
	{
		for (int j = i + 1; j < n; j++)
		{
			if (p[i][j] == 0)
			{
				if (sfind(i) == sfind(j) or cfind(i) == cfind(j))
					return 0;
			}
			if (p[i][j] == 1)
			{
				if (sfind(i) != sfind(j))
					return 0;
			}
			if (p[i][j] >= 2)
			{
				if (sfind(i) == sfind(j) or cfind(i) != cfind(j))
					return 0;
				st[cfind(i)].insert(p[i][j]);
			}
		}
	}

	for (int i = 0; i < n; i++)
	{
		if (cfind(i) != i)
			continue;
		set<int>rem;
		for (int j = 0; j < n; j++)
		{
			if (cfind(j) != i)
				continue;
			rem.insert(sfind(j));
		}
		vector<int>v;
		for (auto it : rem)
			v.push_back(it);
		int k = v.size();
		if (k <= 1)
			continue;
		if (st[i].size() >= 2 or * st[i].begin() == 3)
			return 0;
		if (k <= 2)
			return 0;
		for (int j = 0; j < k; j++)
		{
			int nj = (j + 1) % k;
			answer[v[j]][v[nj]]  = answer[v[nj]][v[j]] = 1;
		}
	}
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 11 ms 1228 KB Output is correct
7 Correct 255 ms 24004 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 11 ms 1228 KB Output is correct
7 Correct 255 ms 24004 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 11 ms 1228 KB Output is correct
13 Correct 254 ms 23988 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 121 ms 14116 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 66 ms 6212 KB Output is correct
21 Correct 253 ms 23988 KB Output is correct
22 Correct 255 ms 24004 KB Output is correct
23 Correct 267 ms 24128 KB Output is correct
24 Correct 252 ms 24004 KB Output is correct
25 Correct 118 ms 14128 KB Output is correct
26 Correct 111 ms 14128 KB Output is correct
27 Correct 261 ms 23980 KB Output is correct
28 Correct 252 ms 24132 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 416 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 13 ms 1280 KB Output is correct
9 Correct 255 ms 24004 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 12 ms 1268 KB Output is correct
13 Correct 258 ms 24184 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 352 KB Output is correct
16 Correct 6 ms 868 KB Output is correct
17 Correct 123 ms 14116 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 63 ms 6260 KB Output is correct
22 Correct 255 ms 24108 KB Output is correct
23 Correct 272 ms 24000 KB Output is correct
24 Correct 267 ms 24036 KB Output is correct
25 Correct 115 ms 14116 KB Output is correct
26 Correct 114 ms 14132 KB Output is correct
27 Correct 252 ms 23984 KB Output is correct
28 Correct 267 ms 23972 KB Output is correct
29 Correct 119 ms 14252 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 64 ms 6256 KB Output is correct
5 Correct 261 ms 24056 KB Output is correct
6 Correct 254 ms 24004 KB Output is correct
7 Correct 282 ms 24004 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 63 ms 6304 KB Output is correct
10 Correct 257 ms 24040 KB Output is correct
11 Correct 260 ms 24176 KB Output is correct
12 Correct 263 ms 24016 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 66 ms 6308 KB Output is correct
17 Correct 252 ms 23968 KB Output is correct
18 Correct 259 ms 24004 KB Output is correct
19 Correct 255 ms 24012 KB Output is correct
20 Correct 252 ms 24004 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 11 ms 1228 KB Output is correct
7 Correct 255 ms 24004 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 11 ms 1228 KB Output is correct
13 Correct 254 ms 23988 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 121 ms 14116 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 66 ms 6212 KB Output is correct
21 Correct 253 ms 23988 KB Output is correct
22 Correct 255 ms 24004 KB Output is correct
23 Correct 267 ms 24128 KB Output is correct
24 Correct 252 ms 24004 KB Output is correct
25 Correct 118 ms 14128 KB Output is correct
26 Correct 111 ms 14128 KB Output is correct
27 Correct 261 ms 23980 KB Output is correct
28 Correct 252 ms 24132 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 416 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 13 ms 1280 KB Output is correct
37 Correct 255 ms 24004 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 12 ms 1268 KB Output is correct
41 Correct 258 ms 24184 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 352 KB Output is correct
44 Correct 6 ms 868 KB Output is correct
45 Correct 123 ms 14116 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 63 ms 6260 KB Output is correct
50 Correct 255 ms 24108 KB Output is correct
51 Correct 272 ms 24000 KB Output is correct
52 Correct 267 ms 24036 KB Output is correct
53 Correct 115 ms 14116 KB Output is correct
54 Correct 114 ms 14132 KB Output is correct
55 Correct 252 ms 23984 KB Output is correct
56 Correct 267 ms 23972 KB Output is correct
57 Correct 119 ms 14252 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 5 ms 844 KB Output is correct
61 Correct 123 ms 14148 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 1 ms 332 KB Output is correct
64 Correct 1 ms 332 KB Output is correct
65 Correct 64 ms 6308 KB Output is correct
66 Correct 115 ms 14128 KB Output is correct
67 Correct 114 ms 14120 KB Output is correct
68 Correct 111 ms 14128 KB Output is correct
69 Correct 113 ms 14120 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 11 ms 1228 KB Output is correct
7 Correct 255 ms 24004 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 11 ms 1228 KB Output is correct
13 Correct 254 ms 23988 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 121 ms 14116 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 66 ms 6212 KB Output is correct
21 Correct 253 ms 23988 KB Output is correct
22 Correct 255 ms 24004 KB Output is correct
23 Correct 267 ms 24128 KB Output is correct
24 Correct 252 ms 24004 KB Output is correct
25 Correct 118 ms 14128 KB Output is correct
26 Correct 111 ms 14128 KB Output is correct
27 Correct 261 ms 23980 KB Output is correct
28 Correct 252 ms 24132 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 416 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 13 ms 1280 KB Output is correct
37 Correct 255 ms 24004 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 12 ms 1268 KB Output is correct
41 Correct 258 ms 24184 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 352 KB Output is correct
44 Correct 6 ms 868 KB Output is correct
45 Correct 123 ms 14116 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 63 ms 6260 KB Output is correct
50 Correct 255 ms 24108 KB Output is correct
51 Correct 272 ms 24000 KB Output is correct
52 Correct 267 ms 24036 KB Output is correct
53 Correct 115 ms 14116 KB Output is correct
54 Correct 114 ms 14132 KB Output is correct
55 Correct 252 ms 23984 KB Output is correct
56 Correct 267 ms 23972 KB Output is correct
57 Correct 119 ms 14252 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 1 ms 332 KB Output is correct
61 Correct 64 ms 6256 KB Output is correct
62 Correct 261 ms 24056 KB Output is correct
63 Correct 254 ms 24004 KB Output is correct
64 Correct 282 ms 24004 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 63 ms 6304 KB Output is correct
67 Correct 257 ms 24040 KB Output is correct
68 Correct 260 ms 24176 KB Output is correct
69 Correct 263 ms 24016 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 1 ms 332 KB Output is correct
72 Correct 1 ms 332 KB Output is correct
73 Correct 66 ms 6308 KB Output is correct
74 Correct 252 ms 23968 KB Output is correct
75 Correct 259 ms 24004 KB Output is correct
76 Correct 255 ms 24012 KB Output is correct
77 Correct 252 ms 24004 KB Output is correct
78 Correct 1 ms 332 KB Output is correct
79 Correct 1 ms 336 KB Output is correct
80 Correct 5 ms 844 KB Output is correct
81 Correct 123 ms 14148 KB Output is correct
82 Correct 1 ms 332 KB Output is correct
83 Correct 1 ms 332 KB Output is correct
84 Correct 1 ms 332 KB Output is correct
85 Correct 64 ms 6308 KB Output is correct
86 Correct 115 ms 14128 KB Output is correct
87 Correct 114 ms 14120 KB Output is correct
88 Correct 111 ms 14128 KB Output is correct
89 Correct 113 ms 14120 KB Output is correct
90 Correct 1 ms 332 KB Output is correct
91 Correct 1 ms 348 KB Output is correct
92 Correct 6 ms 848 KB Output is correct
93 Correct 118 ms 14124 KB Output is correct
94 Correct 1 ms 332 KB Output is correct
95 Correct 1 ms 348 KB Output is correct
96 Correct 1 ms 332 KB Output is correct
97 Correct 29 ms 3732 KB Output is correct
98 Correct 117 ms 14036 KB Output is correct
99 Correct 112 ms 14132 KB Output is correct
100 Correct 126 ms 14116 KB Output is correct
101 Correct 116 ms 14116 KB Output is correct
102 Correct 118 ms 14128 KB Output is correct
103 Correct 126 ms 14148 KB Output is correct
104 Correct 118 ms 14116 KB Output is correct
105 Correct 119 ms 14176 KB Output is correct