oj.uz

Submission #437526

# Submission time Handle Problem Language Result Execution time Memory
437526 2021-06-26T12:31:25 Z robertbarbu27 Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 307 ms 24136 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
int construct(vector<vector<int>> p) {
	int n = p.size();
	for (int i = 0; i < n; i++)
		for (int j = 0; j < n; j++)
			if (p[i][j] == 3)
				return 0;
	int C[n];
	iota(C, C + n, 0);
	for (int i = 0; i < n; i++)
		for (int j = 0; j < n; j++)
		{
			if (p[i][j] == 1 && C[i] != C[j])
			{
				int x = C[i];
				for (int a = 0; a < n; a++)
					if (C[a] == x)
						C[a] = C[j];
			}
		}
	vector<vector<int>>ans(n, vector<int>(n, 0));
	for (int i = 0; i < n; i++)
		if (C[i] != i)
			ans[i][C[i]] = ans[C[i]][i] = 1;
	int X[n];
	for (int i = 0; i < n; i++)
		if (C[i] == i)
			X[i] = i;
		else
			X[i] = -1;
	for (int i = 0; i < n; i++)
		for (int j = 0; j < n; j++)
		{
			if (p[i][j] == 2 && X[i] != X[j] && X[i] != -1 && X[j] != -1)
			{
				int x = X[i];
				for (int a = 0; a < n; a++)
					if (X[a] == x)
						X[a] = X[j];
			}
		}
	for (int i = 0; i < n; i++)
	{
		vector<int>x;
		for (int j = 0; j < n; j++)
			if (X[j] == i)
				x.push_back(j);
		if (x.size() > 1)
		{
			if (x.size() == 2)
				return 0;
			int a = x.back();
			for (int b : x)
			{
				ans[a][b] = ans[b][a] = 1;
				a = b;
			}
		}
	}
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < n; j++)
		{
			if (p[i][j] == 0 && X[C[i]] == X[C[j]])
				return 0;
			if (p[i][j] == 1 && C[i] != C[j])
				return 0;
			if (p[i][j] == 2 && (X[C[i]] != X[C[j]] || C[i] == C[j]))
				return 0;
		}
	}
	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1240 KB Output is correct
7 Correct 307 ms 23008 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1240 KB Output is correct
7 Correct 307 ms 23008 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1240 KB Output is correct
13 Correct 238 ms 22864 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 788 KB Output is correct
17 Correct 122 ms 12920 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 61 ms 6152 KB Output is correct
21 Correct 246 ms 22868 KB Output is correct
22 Correct 260 ms 22832 KB Output is correct
23 Correct 260 ms 23116 KB Output is correct
24 Correct 247 ms 22848 KB Output is correct
25 Correct 121 ms 12924 KB Output is correct
26 Correct 130 ms 12920 KB Output is correct
27 Correct 253 ms 22904 KB Output is correct
28 Correct 256 ms 22852 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 288 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 10 ms 1228 KB Output is correct
9 Correct 247 ms 22840 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 18 ms 1264 KB Output is correct
13 Correct 288 ms 22868 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 844 KB Output is correct
17 Correct 134 ms 13036 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 284 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 73 ms 6208 KB Output is correct
22 Correct 258 ms 22980 KB Output is correct
23 Correct 274 ms 22888 KB Output is correct
24 Correct 254 ms 22912 KB Output is correct
25 Correct 110 ms 12920 KB Output is correct
26 Correct 111 ms 12996 KB Output is correct
27 Correct 284 ms 22908 KB Output is correct
28 Correct 250 ms 22828 KB Output is correct
29 Correct 107 ms 12996 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 296 KB Output is correct
4 Correct 63 ms 6248 KB Output is correct
5 Correct 247 ms 22872 KB Output is correct
6 Correct 240 ms 22952 KB Output is correct
7 Correct 264 ms 23068 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 61 ms 6248 KB Output is correct
10 Correct 255 ms 22896 KB Output is correct
11 Correct 257 ms 22904 KB Output is correct
12 Correct 274 ms 22852 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 64 ms 6212 KB Output is correct
17 Correct 274 ms 23928 KB Output is correct
18 Correct 250 ms 23924 KB Output is correct
19 Correct 246 ms 24136 KB Output is correct
20 Correct 263 ms 23928 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1240 KB Output is correct
7 Correct 307 ms 23008 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1240 KB Output is correct
13 Correct 238 ms 22864 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 788 KB Output is correct
17 Correct 122 ms 12920 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 61 ms 6152 KB Output is correct
21 Correct 246 ms 22868 KB Output is correct
22 Correct 260 ms 22832 KB Output is correct
23 Correct 260 ms 23116 KB Output is correct
24 Correct 247 ms 22848 KB Output is correct
25 Correct 121 ms 12924 KB Output is correct
26 Correct 130 ms 12920 KB Output is correct
27 Correct 253 ms 22904 KB Output is correct
28 Correct 256 ms 22852 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 288 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1228 KB Output is correct
37 Correct 247 ms 22840 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 18 ms 1264 KB Output is correct
41 Correct 288 ms 22868 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 6 ms 844 KB Output is correct
45 Correct 134 ms 13036 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 284 KB Output is correct
48 Correct 1 ms 292 KB Output is correct
49 Correct 73 ms 6208 KB Output is correct
50 Correct 258 ms 22980 KB Output is correct
51 Correct 274 ms 22888 KB Output is correct
52 Correct 254 ms 22912 KB Output is correct
53 Correct 110 ms 12920 KB Output is correct
54 Correct 111 ms 12996 KB Output is correct
55 Correct 284 ms 22908 KB Output is correct
56 Correct 250 ms 22828 KB Output is correct
57 Correct 107 ms 12996 KB Output is correct
58 Correct 1 ms 296 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 7 ms 764 KB Output is correct
61 Correct 124 ms 13604 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 65 ms 6140 KB Output is correct
66 Correct 119 ms 14020 KB Output is correct
67 Correct 112 ms 14072 KB Output is correct
68 Correct 124 ms 14068 KB Output is correct
69 Correct 107 ms 14032 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 1240 KB Output is correct
7 Correct 307 ms 23008 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 11 ms 1240 KB Output is correct
13 Correct 238 ms 22864 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 788 KB Output is correct
17 Correct 122 ms 12920 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 61 ms 6152 KB Output is correct
21 Correct 246 ms 22868 KB Output is correct
22 Correct 260 ms 22832 KB Output is correct
23 Correct 260 ms 23116 KB Output is correct
24 Correct 247 ms 22848 KB Output is correct
25 Correct 121 ms 12924 KB Output is correct
26 Correct 130 ms 12920 KB Output is correct
27 Correct 253 ms 22904 KB Output is correct
28 Correct 256 ms 22852 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 288 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1228 KB Output is correct
37 Correct 247 ms 22840 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 18 ms 1264 KB Output is correct
41 Correct 288 ms 22868 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 6 ms 844 KB Output is correct
45 Correct 134 ms 13036 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 284 KB Output is correct
48 Correct 1 ms 292 KB Output is correct
49 Correct 73 ms 6208 KB Output is correct
50 Correct 258 ms 22980 KB Output is correct
51 Correct 274 ms 22888 KB Output is correct
52 Correct 254 ms 22912 KB Output is correct
53 Correct 110 ms 12920 KB Output is correct
54 Correct 111 ms 12996 KB Output is correct
55 Correct 284 ms 22908 KB Output is correct
56 Correct 250 ms 22828 KB Output is correct
57 Correct 107 ms 12996 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 296 KB Output is correct
61 Correct 63 ms 6248 KB Output is correct
62 Correct 247 ms 22872 KB Output is correct
63 Correct 240 ms 22952 KB Output is correct
64 Correct 264 ms 23068 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 61 ms 6248 KB Output is correct
67 Correct 255 ms 22896 KB Output is correct
68 Correct 257 ms 22904 KB Output is correct
69 Correct 274 ms 22852 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 1 ms 204 KB Output is correct
72 Correct 1 ms 204 KB Output is correct
73 Correct 64 ms 6212 KB Output is correct
74 Correct 274 ms 23928 KB Output is correct
75 Correct 250 ms 23924 KB Output is correct
76 Correct 246 ms 24136 KB Output is correct
77 Correct 263 ms 23928 KB Output is correct
78 Correct 1 ms 296 KB Output is correct
79 Correct 1 ms 204 KB Output is correct
80 Correct 7 ms 764 KB Output is correct
81 Correct 124 ms 13604 KB Output is correct
82 Correct 1 ms 204 KB Output is correct
83 Correct 1 ms 204 KB Output is correct
84 Correct 1 ms 204 KB Output is correct
85 Correct 65 ms 6140 KB Output is correct
86 Correct 119 ms 14020 KB Output is correct
87 Correct 112 ms 14072 KB Output is correct
88 Correct 124 ms 14068 KB Output is correct
89 Correct 107 ms 14032 KB Output is correct
90 Correct 1 ms 204 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 5 ms 588 KB Output is correct
93 Correct 106 ms 10096 KB Output is correct
94 Correct 1 ms 204 KB Output is correct
95 Correct 1 ms 204 KB Output is correct
96 Correct 1 ms 292 KB Output is correct
97 Correct 35 ms 2672 KB Output is correct
98 Correct 101 ms 10108 KB Output is correct
99 Correct 118 ms 10092 KB Output is correct
100 Correct 102 ms 10100 KB Output is correct
101 Correct 99 ms 10096 KB Output is correct
102 Correct 131 ms 10088 KB Output is correct
103 Correct 103 ms 10104 KB Output is correct
104 Correct 102 ms 10024 KB Output is correct
105 Correct 119 ms 10092 KB Output is correct