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Submission #832990

# Submission time Handle Problem Language Result Execution time Memory
832990 2023-08-21T18:31:52 Z Johann Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 203 ms 22128 KB 
#include "supertrees.h"
#include "bits/stdc++.h"
using namespace std;

typedef vector<int> vi;
typedef vector<vi> vvi;
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()

int construct(std::vector<std::vector<int>> p)
{
	int N = p.size();
	vi comp(N, -1);

	vvi ans(N, vi(N, 0));
	for (int v = 0; v < N; ++v)
	{
		if (comp[v] == -1)
		{
			vvi c(4);
			comp[v] = v;
			for (int u = 0; u < N; ++u)
			{
				if (p[v][u] == 0 || u == v)
					continue;
				if (comp[u] != -1)
					return 0;
				comp[u] = v;
				c[p[v][u]].push_back(u);
			}

			if (!c[3].empty())
				return 0;

			for (int u : c[1])
			{
				ans[v][u] = ans[u][v] = 1;
				for (int w = 0; w < N; ++w)
					if (comp[w] != comp[u] && p[u][w] > 0)
						return 0;
				for (int w : c[1])
					if (p[u][w] != 1)
						return 0;
				for (int w : c[2])
					if (p[u][w] != 2)
						return 0;
				for (int w : c[3])
					if (p[u][w] != 3)
						return 0;
			}

			if (!c[2].empty())
			{
				for (int u : c[2])
					for (int w = 0; w < N; ++w)
						if (comp[w] != comp[u] && p[u][w] > 0)
							return 0;

				int last = v;
				vi belongs(sz(c[2]), -1);
				for (int i = 0; i < sz(c[2]); ++i)
				{
					int u = c[2][i];
					if (belongs[i] == -1)
					{
						ans[last][u] = ans[u][last] = 1;
						last = u;
						belongs[i] = u;
					}
					for (int j = i + 1; j < sz(c[2]); ++j)
					{
						int w = c[2][j];
						if (p[u][w] == 1)
						{
							if (belongs[j] != -1)
							{
								if (belongs[j] != belongs[i])
									return 0;
							}
							else
							{
								belongs[j] = belongs[i];
								ans[w][u] = ans[u][w] = 1;
							}
						}
						else if (p[u][w] == 2)
						{
							if (belongs[i] == belongs[j])
								return 0;
						}
						else
							return 0;
					}
				}
				if (ans[v][last])
					return 0;
				ans[v][last] = ans[last][v] = 1;
			}
		}
	}

	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# 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 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 161 ms 22016 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 161 ms 22016 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1160 KB Output is correct
13 Correct 154 ms 22044 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 72 ms 12036 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5748 KB Output is correct
21 Correct 156 ms 21964 KB Output is correct
22 Correct 153 ms 22020 KB Output is correct
23 Correct 159 ms 22036 KB Output is correct
24 Correct 159 ms 22128 KB Output is correct
25 Correct 64 ms 12108 KB Output is correct
26 Correct 63 ms 12040 KB Output is correct
27 Correct 161 ms 21964 KB Output is correct
28 Correct 154 ms 22032 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 224 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 7 ms 1108 KB Output is correct
9 Correct 155 ms 21956 KB Output is correct
10 Correct 1 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 153 ms 22016 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 65 ms 12048 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 49 ms 5704 KB Output is correct
22 Correct 154 ms 22032 KB Output is correct
23 Correct 168 ms 22020 KB Output is correct
24 Correct 165 ms 22044 KB Output is correct
25 Correct 73 ms 12052 KB Output is correct
26 Correct 66 ms 12036 KB Output is correct
27 Correct 160 ms 22048 KB Output is correct
28 Correct 170 ms 22028 KB Output is correct
29 Correct 73 ms 12028 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 41 ms 5768 KB Output is correct
5 Correct 182 ms 22024 KB Output is correct
6 Correct 163 ms 21976 KB Output is correct
7 Correct 187 ms 22024 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 49 ms 5728 KB Output is correct
10 Correct 162 ms 21984 KB Output is correct
11 Correct 158 ms 22028 KB Output is correct
12 Correct 203 ms 22052 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 39 ms 5772 KB Output is correct
17 Correct 158 ms 22032 KB Output is correct
18 Correct 198 ms 21960 KB Output is correct
19 Correct 191 ms 21936 KB Output is correct
20 Correct 158 ms 22020 KB Output is correct

Subtask #5
21.0 / 21.0

# 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 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 161 ms 22016 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1160 KB Output is correct
13 Correct 154 ms 22044 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 72 ms 12036 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5748 KB Output is correct
21 Correct 156 ms 21964 KB Output is correct
22 Correct 153 ms 22020 KB Output is correct
23 Correct 159 ms 22036 KB Output is correct
24 Correct 159 ms 22128 KB Output is correct
25 Correct 64 ms 12108 KB Output is correct
26 Correct 63 ms 12040 KB Output is correct
27 Correct 161 ms 21964 KB Output is correct
28 Correct 154 ms 22032 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 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 224 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1108 KB Output is correct
37 Correct 155 ms 21956 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 6 ms 1108 KB Output is correct
41 Correct 153 ms 22016 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 65 ms 12048 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 49 ms 5704 KB Output is correct
50 Correct 154 ms 22032 KB Output is correct
51 Correct 168 ms 22020 KB Output is correct
52 Correct 165 ms 22044 KB Output is correct
53 Correct 73 ms 12052 KB Output is correct
54 Correct 66 ms 12036 KB Output is correct
55 Correct 160 ms 22048 KB Output is correct
56 Correct 170 ms 22028 KB Output is correct
57 Correct 73 ms 12028 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 3 ms 724 KB Output is correct
61 Correct 67 ms 12040 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 48 ms 5672 KB Output is correct
66 Correct 64 ms 12032 KB Output is correct
67 Correct 66 ms 12032 KB Output is correct
68 Correct 74 ms 12040 KB Output is correct
69 Correct 71 ms 12032 KB Output is correct

Subtask #6
4.0 / 4.0

# 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 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 161 ms 22016 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1160 KB Output is correct
13 Correct 154 ms 22044 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 72 ms 12036 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5748 KB Output is correct
21 Correct 156 ms 21964 KB Output is correct
22 Correct 153 ms 22020 KB Output is correct
23 Correct 159 ms 22036 KB Output is correct
24 Correct 159 ms 22128 KB Output is correct
25 Correct 64 ms 12108 KB Output is correct
26 Correct 63 ms 12040 KB Output is correct
27 Correct 161 ms 21964 KB Output is correct
28 Correct 154 ms 22032 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 1 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 224 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1108 KB Output is correct
37 Correct 155 ms 21956 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 6 ms 1108 KB Output is correct
41 Correct 153 ms 22016 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 65 ms 12048 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 49 ms 5704 KB Output is correct
50 Correct 154 ms 22032 KB Output is correct
51 Correct 168 ms 22020 KB Output is correct
52 Correct 165 ms 22044 KB Output is correct
53 Correct 73 ms 12052 KB Output is correct
54 Correct 66 ms 12036 KB Output is correct
55 Correct 160 ms 22048 KB Output is correct
56 Correct 170 ms 22028 KB Output is correct
57 Correct 73 ms 12028 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 41 ms 5768 KB Output is correct
62 Correct 182 ms 22024 KB Output is correct
63 Correct 163 ms 21976 KB Output is correct
64 Correct 187 ms 22024 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 49 ms 5728 KB Output is correct
67 Correct 162 ms 21984 KB Output is correct
68 Correct 158 ms 22028 KB Output is correct
69 Correct 203 ms 22052 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Correct 39 ms 5772 KB Output is correct
74 Correct 158 ms 22032 KB Output is correct
75 Correct 198 ms 21960 KB Output is correct
76 Correct 191 ms 21936 KB Output is correct
77 Correct 158 ms 22020 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 1 ms 212 KB Output is correct
80 Correct 3 ms 724 KB Output is correct
81 Correct 67 ms 12040 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 48 ms 5672 KB Output is correct
86 Correct 64 ms 12032 KB Output is correct
87 Correct 66 ms 12032 KB Output is correct
88 Correct 74 ms 12040 KB Output is correct
89 Correct 71 ms 12032 KB Output is correct
90 Correct 1 ms 212 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 3 ms 724 KB Output is correct
93 Correct 74 ms 12032 KB Output is correct
94 Correct 0 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 0 ms 212 KB Output is correct
97 Correct 17 ms 3204 KB Output is correct
98 Correct 66 ms 12036 KB Output is correct
99 Correct 80 ms 12108 KB Output is correct
100 Correct 66 ms 12052 KB Output is correct
101 Correct 84 ms 12032 KB Output is correct
102 Correct 65 ms 12044 KB Output is correct
103 Correct 64 ms 12048 KB Output is correct
104 Correct 89 ms 12036 KB Output is correct
105 Correct 75 ms 12032 KB Output is correct