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Submission #303179

# Submission time Handle Problem Language Result Execution time Memory
303179 2020-09-20T00:20:50 Z myungwoo Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 290 ms 22264 KB 
#include <bits/stdc++.h>
#include "supertrees.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;

	vector<vector<int>> answer(N, vector<int>(N, 0));
	vector<int> line(N, 0), compo(N, 0);
	for (int i=0;i<N;i++) line[i] = compo[i] = i;
	function<int(int, vector<int>&)> get; get = [&](int n, vector<int> &par){ return par[n] == n ? n : par[n] = get(par[n], par); };
	for (int i=0;i<N;i++) for (int j=i+1;j<N;j++){
		if (p[i][j]) compo[get(j, compo)] = get(i, compo);
		if (p[i][j] == 1) line[get(j, line)] = get(i, line);
	}
	for (int i=0;i<N;i++) if (get(i, compo) == i){
		vector <int> cycle;
		for (int j=0;j<N;j++) if (get(j, compo) == i && get(j, line) == j) cycle.push_back(j);
		int n = cycle.size();
		if (n == 1) continue;
		if (n == 2) return 0;
		for (int j=0;j<n;j++) answer[cycle[j]][cycle[(j+1)%n]] = answer[cycle[(j+1)%n]][cycle[j]] = 1;
	}
	for (int i=0;i<N;i++) if (get(i, line) != i) answer[get(i, line)][i] = answer[i][get(i, line)] = 1;
	for (int i=0;i<N;i++) for (int j=i+1;j<N;j++){
		if (get(i, line) == get(j, line)){
			if (p[i][j] != 1) return 0;
		}
		else if (get(i, compo) == get(j, compo)){
			if (p[i][j] != 2) return 0;
		}else{
			if (p[i][j] != 0) return 0;
		}
	}
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 15 ms 1152 KB Output is correct
7 Correct 290 ms 22028 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 15 ms 1152 KB Output is correct
7 Correct 290 ms 22028 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 14 ms 1152 KB Output is correct
13 Correct 248 ms 22136 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 125 ms 12280 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 68 ms 5752 KB Output is correct
21 Correct 272 ms 22264 KB Output is correct
22 Correct 279 ms 22136 KB Output is correct
23 Correct 286 ms 22136 KB Output is correct
24 Correct 271 ms 22136 KB Output is correct
25 Correct 113 ms 12152 KB Output is correct
26 Correct 111 ms 12116 KB Output is correct
27 Correct 282 ms 22136 KB Output is correct
28 Correct 259 ms 22136 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 11 ms 1152 KB Output is correct
9 Correct 252 ms 22136 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 11 ms 1280 KB Output is correct
13 Correct 279 ms 22080 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 117 ms 12284 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 64 ms 5752 KB Output is correct
22 Correct 256 ms 22136 KB Output is correct
23 Correct 250 ms 22136 KB Output is correct
24 Correct 268 ms 22136 KB Output is correct
25 Correct 109 ms 12120 KB Output is correct
26 Correct 109 ms 12152 KB Output is correct
27 Correct 250 ms 22136 KB Output is correct
28 Correct 269 ms 22136 KB Output is correct
29 Correct 103 ms 12152 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 65 ms 5752 KB Output is correct
5 Correct 258 ms 22136 KB Output is correct
6 Correct 256 ms 22140 KB Output is correct
7 Correct 278 ms 22136 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 64 ms 5752 KB Output is correct
10 Correct 254 ms 22136 KB Output is correct
11 Correct 250 ms 22136 KB Output is correct
12 Correct 268 ms 22136 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 66 ms 5752 KB Output is correct
17 Correct 256 ms 22064 KB Output is correct
18 Correct 263 ms 22136 KB Output is correct
19 Correct 261 ms 22136 KB Output is correct
20 Correct 249 ms 22136 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 15 ms 1152 KB Output is correct
7 Correct 290 ms 22028 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 14 ms 1152 KB Output is correct
13 Correct 248 ms 22136 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 125 ms 12280 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 68 ms 5752 KB Output is correct
21 Correct 272 ms 22264 KB Output is correct
22 Correct 279 ms 22136 KB Output is correct
23 Correct 286 ms 22136 KB Output is correct
24 Correct 271 ms 22136 KB Output is correct
25 Correct 113 ms 12152 KB Output is correct
26 Correct 111 ms 12116 KB Output is correct
27 Correct 282 ms 22136 KB Output is correct
28 Correct 259 ms 22136 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 256 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 1 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 11 ms 1152 KB Output is correct
37 Correct 252 ms 22136 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 1 ms 256 KB Output is correct
40 Correct 11 ms 1280 KB Output is correct
41 Correct 279 ms 22080 KB Output is correct
42 Correct 1 ms 256 KB Output is correct
43 Correct 1 ms 256 KB Output is correct
44 Correct 5 ms 768 KB Output is correct
45 Correct 117 ms 12284 KB Output is correct
46 Correct 0 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 64 ms 5752 KB Output is correct
50 Correct 256 ms 22136 KB Output is correct
51 Correct 250 ms 22136 KB Output is correct
52 Correct 268 ms 22136 KB Output is correct
53 Correct 109 ms 12120 KB Output is correct
54 Correct 109 ms 12152 KB Output is correct
55 Correct 250 ms 22136 KB Output is correct
56 Correct 269 ms 22136 KB Output is correct
57 Correct 103 ms 12152 KB Output is correct
58 Correct 1 ms 256 KB Output is correct
59 Correct 0 ms 256 KB Output is correct
60 Correct 5 ms 768 KB Output is correct
61 Correct 124 ms 12152 KB Output is correct
62 Correct 0 ms 256 KB Output is correct
63 Correct 1 ms 256 KB Output is correct
64 Correct 0 ms 256 KB Output is correct
65 Correct 64 ms 5752 KB Output is correct
66 Correct 103 ms 12152 KB Output is correct
67 Correct 107 ms 12152 KB Output is correct
68 Correct 102 ms 12120 KB Output is correct
69 Correct 102 ms 12120 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 15 ms 1152 KB Output is correct
7 Correct 290 ms 22028 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 14 ms 1152 KB Output is correct
13 Correct 248 ms 22136 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 125 ms 12280 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 68 ms 5752 KB Output is correct
21 Correct 272 ms 22264 KB Output is correct
22 Correct 279 ms 22136 KB Output is correct
23 Correct 286 ms 22136 KB Output is correct
24 Correct 271 ms 22136 KB Output is correct
25 Correct 113 ms 12152 KB Output is correct
26 Correct 111 ms 12116 KB Output is correct
27 Correct 282 ms 22136 KB Output is correct
28 Correct 259 ms 22136 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 256 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 1 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 11 ms 1152 KB Output is correct
37 Correct 252 ms 22136 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 1 ms 256 KB Output is correct
40 Correct 11 ms 1280 KB Output is correct
41 Correct 279 ms 22080 KB Output is correct
42 Correct 1 ms 256 KB Output is correct
43 Correct 1 ms 256 KB Output is correct
44 Correct 5 ms 768 KB Output is correct
45 Correct 117 ms 12284 KB Output is correct
46 Correct 0 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 64 ms 5752 KB Output is correct
50 Correct 256 ms 22136 KB Output is correct
51 Correct 250 ms 22136 KB Output is correct
52 Correct 268 ms 22136 KB Output is correct
53 Correct 109 ms 12120 KB Output is correct
54 Correct 109 ms 12152 KB Output is correct
55 Correct 250 ms 22136 KB Output is correct
56 Correct 269 ms 22136 KB Output is correct
57 Correct 103 ms 12152 KB Output is correct
58 Correct 1 ms 256 KB Output is correct
59 Correct 0 ms 256 KB Output is correct
60 Correct 0 ms 256 KB Output is correct
61 Correct 65 ms 5752 KB Output is correct
62 Correct 258 ms 22136 KB Output is correct
63 Correct 256 ms 22140 KB Output is correct
64 Correct 278 ms 22136 KB Output is correct
65 Correct 1 ms 256 KB Output is correct
66 Correct 64 ms 5752 KB Output is correct
67 Correct 254 ms 22136 KB Output is correct
68 Correct 250 ms 22136 KB Output is correct
69 Correct 268 ms 22136 KB Output is correct
70 Correct 1 ms 256 KB Output is correct
71 Correct 0 ms 256 KB Output is correct
72 Correct 0 ms 256 KB Output is correct
73 Correct 66 ms 5752 KB Output is correct
74 Correct 256 ms 22064 KB Output is correct
75 Correct 263 ms 22136 KB Output is correct
76 Correct 261 ms 22136 KB Output is correct
77 Correct 249 ms 22136 KB Output is correct
78 Correct 1 ms 256 KB Output is correct
79 Correct 0 ms 256 KB Output is correct
80 Correct 5 ms 768 KB Output is correct
81 Correct 124 ms 12152 KB Output is correct
82 Correct 0 ms 256 KB Output is correct
83 Correct 1 ms 256 KB Output is correct
84 Correct 0 ms 256 KB Output is correct
85 Correct 64 ms 5752 KB Output is correct
86 Correct 103 ms 12152 KB Output is correct
87 Correct 107 ms 12152 KB Output is correct
88 Correct 102 ms 12120 KB Output is correct
89 Correct 102 ms 12120 KB Output is correct
90 Correct 0 ms 256 KB Output is correct
91 Correct 0 ms 256 KB Output is correct
92 Correct 5 ms 640 KB Output is correct
93 Correct 113 ms 8184 KB Output is correct
94 Correct 1 ms 256 KB Output is correct
95 Correct 1 ms 256 KB Output is correct
96 Correct 0 ms 256 KB Output is correct
97 Correct 25 ms 2296 KB Output is correct
98 Correct 99 ms 8184 KB Output is correct
99 Correct 97 ms 8184 KB Output is correct
100 Correct 98 ms 8184 KB Output is correct
101 Correct 100 ms 8184 KB Output is correct
102 Correct 102 ms 8184 KB Output is correct
103 Correct 100 ms 8184 KB Output is correct
104 Correct 103 ms 8148 KB Output is correct
105 Correct 103 ms 8184 KB Output is correct