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Submission #502995

# Submission time Handle Problem Language Result Execution time Memory
502995 2022-01-06T21:23:38 Z sliviu Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 225 ms 24004 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, sp = 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 (c1 && c2)
			++sp;
		if (!solved[node] && c1) {
			if (c2)
				cycle.emplace_back(node);
			solved[node] = 1;
			int cur = node;
			for (int i = 0; i < n; ++i)
				if (i != node && p[node][i] == 1)
					ans[cur][i] = ans[i][cur] = solved[i] = 1, cur = i;
		}
	};
	for (int i = 0; i < n; ++i)
		if (!seen[i]) {
			cycle.clear();
			++cur;
			sp = 0;
			dfs(i);
			if (bad)
				return 0;
			if (!cycle.empty()) {
				if (cycle.size() + sp == 2)
					return 0;
				int root=cycle[0], cur = root;
				for (auto x : cycle) {
					if (x !=root) {
						ans[cur][x] = ans[x][cur] = 1;
						cur = x;
					}
				}
				ans[cur][root] = ans[root][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 0 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 10 ms 1192 KB Output is correct
7 Correct 182 ms 22012 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 0 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 10 ms 1192 KB Output is correct
7 Correct 182 ms 22012 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 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1188 KB Output is correct
13 Correct 161 ms 21956 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 70 ms 12292 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 63 ms 5900 KB Output is correct
21 Correct 169 ms 22572 KB Output is correct
22 Correct 167 ms 23380 KB Output is correct
23 Correct 170 ms 22024 KB Output is correct
24 Correct 162 ms 23108 KB Output is correct
25 Correct 68 ms 12028 KB Output is correct
26 Correct 68 ms 13124 KB Output is correct
27 Correct 225 ms 23156 KB Output is correct
28 Correct 188 ms 22020 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 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 8 ms 1100 KB Output is correct
9 Correct 167 ms 22044 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 1100 KB Output is correct
13 Correct 178 ms 22084 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 72 ms 12028 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 45 ms 5756 KB Output is correct
22 Correct 205 ms 23556 KB Output is correct
23 Correct 163 ms 22016 KB Output is correct
24 Correct 179 ms 21972 KB Output is correct
25 Correct 95 ms 13632 KB Output is correct
26 Correct 67 ms 13680 KB Output is correct
27 Correct 165 ms 22060 KB Output is correct
28 Correct 217 ms 23580 KB Output is correct
29 Correct 67 ms 13636 KB Output is correct

Subtask #4
35.0 / 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 42 ms 5700 KB Output is correct
5 Correct 175 ms 22004 KB Output is correct
6 Correct 175 ms 22008 KB Output is correct
7 Correct 181 ms 22088 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 42 ms 5688 KB Output is correct
10 Correct 168 ms 22028 KB Output is correct
11 Correct 163 ms 21960 KB Output is correct
12 Correct 179 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 Correct 0 ms 204 KB Output is correct
16 Correct 43 ms 5756 KB Output is correct
17 Correct 160 ms 23968 KB Output is correct
18 Correct 172 ms 24004 KB Output is correct
19 Correct 164 ms 23972 KB Output is correct
20 Correct 162 ms 23936 KB Output is correct

Subtask #5
21.0 / 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 0 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 10 ms 1192 KB Output is correct
7 Correct 182 ms 22012 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 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1188 KB Output is correct
13 Correct 161 ms 21956 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 70 ms 12292 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 63 ms 5900 KB Output is correct
21 Correct 169 ms 22572 KB Output is correct
22 Correct 167 ms 23380 KB Output is correct
23 Correct 170 ms 22024 KB Output is correct
24 Correct 162 ms 23108 KB Output is correct
25 Correct 68 ms 12028 KB Output is correct
26 Correct 68 ms 13124 KB Output is correct
27 Correct 225 ms 23156 KB Output is correct
28 Correct 188 ms 22020 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 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 8 ms 1100 KB Output is correct
37 Correct 167 ms 22044 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 7 ms 1100 KB Output is correct
41 Correct 178 ms 22084 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 3 ms 716 KB Output is correct
45 Correct 72 ms 12028 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 45 ms 5756 KB Output is correct
50 Correct 205 ms 23556 KB Output is correct
51 Correct 163 ms 22016 KB Output is correct
52 Correct 179 ms 21972 KB Output is correct
53 Correct 95 ms 13632 KB Output is correct
54 Correct 67 ms 13680 KB Output is correct
55 Correct 165 ms 22060 KB Output is correct
56 Correct 217 ms 23580 KB Output is correct
57 Correct 67 ms 13636 KB Output is correct
58 Correct 0 ms 204 KB Output is correct
59 Correct 0 ms 204 KB Output is correct
60 Correct 3 ms 788 KB Output is correct
61 Correct 73 ms 13684 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 Correct 46 ms 5700 KB Output is correct
66 Correct 68 ms 14192 KB Output is correct
67 Correct 66 ms 14060 KB Output is correct
68 Correct 73 ms 14072 KB Output is correct
69 Correct 67 ms 14060 KB Output is correct

Subtask #6
4.0 / 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 0 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 10 ms 1192 KB Output is correct
7 Correct 182 ms 22012 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 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 7 ms 1188 KB Output is correct
13 Correct 161 ms 21956 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 70 ms 12292 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 63 ms 5900 KB Output is correct
21 Correct 169 ms 22572 KB Output is correct
22 Correct 167 ms 23380 KB Output is correct
23 Correct 170 ms 22024 KB Output is correct
24 Correct 162 ms 23108 KB Output is correct
25 Correct 68 ms 12028 KB Output is correct
26 Correct 68 ms 13124 KB Output is correct
27 Correct 225 ms 23156 KB Output is correct
28 Correct 188 ms 22020 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 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 8 ms 1100 KB Output is correct
37 Correct 167 ms 22044 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 7 ms 1100 KB Output is correct
41 Correct 178 ms 22084 KB Output is correct
42 Correct 0 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 3 ms 716 KB Output is correct
45 Correct 72 ms 12028 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 45 ms 5756 KB Output is correct
50 Correct 205 ms 23556 KB Output is correct
51 Correct 163 ms 22016 KB Output is correct
52 Correct 179 ms 21972 KB Output is correct
53 Correct 95 ms 13632 KB Output is correct
54 Correct 67 ms 13680 KB Output is correct
55 Correct 165 ms 22060 KB Output is correct
56 Correct 217 ms 23580 KB Output is correct
57 Correct 67 ms 13636 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 42 ms 5700 KB Output is correct
62 Correct 175 ms 22004 KB Output is correct
63 Correct 175 ms 22008 KB Output is correct
64 Correct 181 ms 22088 KB Output is correct
65 Correct 0 ms 204 KB Output is correct
66 Correct 42 ms 5688 KB Output is correct
67 Correct 168 ms 22028 KB Output is correct
68 Correct 163 ms 21960 KB Output is correct
69 Correct 179 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 Correct 0 ms 204 KB Output is correct
73 Correct 43 ms 5756 KB Output is correct
74 Correct 160 ms 23968 KB Output is correct
75 Correct 172 ms 24004 KB Output is correct
76 Correct 164 ms 23972 KB Output is correct
77 Correct 162 ms 23936 KB Output is correct
78 Correct 0 ms 204 KB Output is correct
79 Correct 0 ms 204 KB Output is correct
80 Correct 3 ms 788 KB Output is correct
81 Correct 73 ms 13684 KB Output is correct
82 Correct 0 ms 204 KB Output is correct
83 Correct 0 ms 204 KB Output is correct
84 Correct 0 ms 204 KB Output is correct
85 Correct 46 ms 5700 KB Output is correct
86 Correct 68 ms 14192 KB Output is correct
87 Correct 66 ms 14060 KB Output is correct
88 Correct 73 ms 14072 KB Output is correct
89 Correct 67 ms 14060 KB Output is correct
90 Correct 0 ms 288 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 3 ms 844 KB Output is correct
93 Correct 66 ms 14064 KB Output is correct
94 Correct 0 ms 204 KB Output is correct
95 Correct 0 ms 204 KB Output is correct
96 Correct 0 ms 204 KB Output is correct
97 Correct 17 ms 3660 KB Output is correct
98 Correct 66 ms 14112 KB Output is correct
99 Correct 69 ms 14060 KB Output is correct
100 Correct 66 ms 14020 KB Output is correct
101 Correct 65 ms 14020 KB Output is correct
102 Correct 74 ms 13996 KB Output is correct
103 Correct 68 ms 13988 KB Output is correct
104 Correct 62 ms 14076 KB Output is correct
105 Correct 79 ms 14060 KB Output is correct