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Submission #502969

# Submission time Handle Problem Language Result Execution time Memory
502969 2022-01-06T20:42:04 Z sliviu Connecting Supertrees (IOI20_supertrees) C++14
40 / 100
 194 ms 24104 KB 
#include "supertrees.h"
#include <bits/stdc++.h>

using namespace std;

int construct(vector<vector<int>> p) {
	int n = p.size(), cur = 0, bad = 0;
	vector<vector<int>> ans(n, vector<int>(n));
	vector<int> seen(n), solved(n), cycle;
	function<void(int)> dfs = [&](int node) {
		if (bad)
			return;
		seen[node] = cur;
		int c1 = 0, c2 = 0;
		for (int i = 0; i < n; ++i)
			if (i != node) {
				if (p[node][i] == 1)
					++c1;
				else if (p[node][i] == 2)
					++c2;
				else if (p[node][i] == 3)
					bad = 1;
				if (!seen[i] && p[node][i])
					dfs(i);
				if (!p[node][i] && seen[i] == cur)
					bad = 1;
			}
		if (!c1 && c2)
			cycle.emplace_back(node);
		if (!solved[cur] && c1) {
			solved[cur] = 1;
			int cur = node;
			for (int i = 0; i < n; ++i)
				if (i != node && p[node][i] == 1)
					ans[cur][i] = ans[i][cur] = 1, cur = i;
		}
	};
	for (int i = 0; i < n; ++i)
		if (!seen[i]) {
			cycle.clear();
			++cur;
			dfs(i);
			if (bad)
				return 0;
			if (!cycle.empty()) {
				if (cycle.size() == 2)
					return 0;
				int cur = i;
				for (auto x : cycle)
					if (x != i) {
						ans[cur][x] = ans[x][cur] = 1;
						cur = x;
					}
				ans[cur][i] = ans[i][cur] = 1;
			}
		}
	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 7 ms 1204 KB Output is correct
7 Correct 164 ms 22088 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 7 ms 1204 KB Output is correct
7 Correct 164 ms 22088 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1176 KB Output is correct
13 Correct 173 ms 21988 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 3 ms 716 KB Output is correct
17 Correct 74 ms 12032 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 45 ms 5764 KB Output is correct
21 Correct 166 ms 22028 KB Output is correct
22 Correct 167 ms 22012 KB Output is correct
23 Correct 173 ms 22084 KB Output is correct
24 Correct 169 ms 22028 KB Output is correct
25 Correct 71 ms 12100 KB Output is correct
26 Correct 67 ms 12040 KB Output is correct
27 Correct 194 ms 22028 KB Output is correct
28 Correct 166 ms 22024 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 292 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 272 KB Output is correct
8 Correct 7 ms 1228 KB Output is correct
9 Correct 162 ms 23588 KB Output is correct
10 Correct 1 ms 272 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1168 KB Output is correct
13 Correct 174 ms 24048 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 4 ms 844 KB Output is correct
17 Correct 73 ms 12824 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 292 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 42 ms 6200 KB Output is correct
22 Correct 166 ms 24004 KB Output is correct
23 Correct 166 ms 23968 KB Output is correct
24 Correct 172 ms 24104 KB Output is correct
25 Correct 71 ms 14072 KB Output is correct
26 Correct 70 ms 14068 KB Output is correct
27 Correct 164 ms 23992 KB Output is correct
28 Correct 173 ms 23956 KB Output is correct
29 Correct 69 ms 14068 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 41 ms 5712 KB Output is correct
5 Correct 164 ms 22024 KB Output is correct
6 Correct 167 ms 22020 KB Output is correct
7 Correct 173 ms 22028 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 42 ms 5716 KB Output is correct
10 Correct 172 ms 22012 KB Output is correct
11 Correct 166 ms 22024 KB Output is correct
12 Correct 183 ms 22016 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Incorrect 0 ms 204 KB Answer gives possible 0 while actual possible 1
16 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 7 ms 1204 KB Output is correct
7 Correct 164 ms 22088 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1176 KB Output is correct
13 Correct 173 ms 21988 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 3 ms 716 KB Output is correct
17 Correct 74 ms 12032 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 45 ms 5764 KB Output is correct
21 Correct 166 ms 22028 KB Output is correct
22 Correct 167 ms 22012 KB Output is correct
23 Correct 173 ms 22084 KB Output is correct
24 Correct 169 ms 22028 KB Output is correct
25 Correct 71 ms 12100 KB Output is correct
26 Correct 67 ms 12040 KB Output is correct
27 Correct 194 ms 22028 KB Output is correct
28 Correct 166 ms 22024 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 292 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 272 KB Output is correct
36 Correct 7 ms 1228 KB Output is correct
37 Correct 162 ms 23588 KB Output is correct
38 Correct 1 ms 272 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 7 ms 1168 KB Output is correct
41 Correct 174 ms 24048 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 4 ms 844 KB Output is correct
45 Correct 73 ms 12824 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 0 ms 292 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 42 ms 6200 KB Output is correct
50 Correct 166 ms 24004 KB Output is correct
51 Correct 166 ms 23968 KB Output is correct
52 Correct 172 ms 24104 KB Output is correct
53 Correct 71 ms 14072 KB Output is correct
54 Correct 70 ms 14068 KB Output is correct
55 Correct 164 ms 23992 KB Output is correct
56 Correct 173 ms 23956 KB Output is correct
57 Correct 69 ms 14068 KB Output is correct
58 Correct 0 ms 204 KB Output is correct
59 Correct 0 ms 204 KB Output is correct
60 Correct 4 ms 804 KB Output is correct
61 Correct 73 ms 14060 KB Output is correct
62 Correct 0 ms 204 KB Output is correct
63 Correct 0 ms 204 KB Output is correct
64 Correct 0 ms 204 KB Output is correct
65 Incorrect 18 ms 3708 KB Answer gives possible 0 while actual possible 1
66 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 7 ms 1204 KB Output is correct
7 Correct 164 ms 22088 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1176 KB Output is correct
13 Correct 173 ms 21988 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 3 ms 716 KB Output is correct
17 Correct 74 ms 12032 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 45 ms 5764 KB Output is correct
21 Correct 166 ms 22028 KB Output is correct
22 Correct 167 ms 22012 KB Output is correct
23 Correct 173 ms 22084 KB Output is correct
24 Correct 169 ms 22028 KB Output is correct
25 Correct 71 ms 12100 KB Output is correct
26 Correct 67 ms 12040 KB Output is correct
27 Correct 194 ms 22028 KB Output is correct
28 Correct 166 ms 22024 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 292 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 272 KB Output is correct
36 Correct 7 ms 1228 KB Output is correct
37 Correct 162 ms 23588 KB Output is correct
38 Correct 1 ms 272 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 7 ms 1168 KB Output is correct
41 Correct 174 ms 24048 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 4 ms 844 KB Output is correct
45 Correct 73 ms 12824 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 0 ms 292 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 42 ms 6200 KB Output is correct
50 Correct 166 ms 24004 KB Output is correct
51 Correct 166 ms 23968 KB Output is correct
52 Correct 172 ms 24104 KB Output is correct
53 Correct 71 ms 14072 KB Output is correct
54 Correct 70 ms 14068 KB Output is correct
55 Correct 164 ms 23992 KB Output is correct
56 Correct 173 ms 23956 KB Output is correct
57 Correct 69 ms 14068 KB Output is correct
58 Correct 0 ms 204 KB Output is correct
59 Correct 0 ms 204 KB Output is correct
60 Correct 0 ms 204 KB Output is correct
61 Correct 41 ms 5712 KB Output is correct
62 Correct 164 ms 22024 KB Output is correct
63 Correct 167 ms 22020 KB Output is correct
64 Correct 173 ms 22028 KB Output is correct
65 Correct 0 ms 204 KB Output is correct
66 Correct 42 ms 5716 KB Output is correct
67 Correct 172 ms 22012 KB Output is correct
68 Correct 166 ms 22024 KB Output is correct
69 Correct 183 ms 22016 KB Output is correct
70 Correct 0 ms 204 KB Output is correct
71 Correct 0 ms 204 KB Output is correct
72 Incorrect 0 ms 204 KB Answer gives possible 0 while actual possible 1
73 Halted 0 ms 0 KB -