oj.uz

Submission #977471

# Submission time Handle Problem Language Result Execution time Memory
977471 2024-05-08T03:32:01 Z Amaarsaa Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 182 ms 27960 KB 
#include "supertrees.h"
 
#include <bits/stdc++.h>
using namespace std;
 
int cmp[1000];
bool used[1000];
vector<pair<int, int>> has[4];
vector<int> cn[1000];
 
int find(int A) {
	while (A != cmp[A]) A = cmp[A], cmp[A] = cmp[cmp[A]];
	return A;
}
 
void onion(int A, int B) { cmp[find(A)] = find(B); }
 
int construct(vector<vector<int>> p) {
	int n = p.size();
 
	for (int i = 0; i < n; i++) for (int j = 0; j < i; j++) {
		has[p[i][j]].push_back({i, j});
	}
 
	vector<vector<int>> ans(n, vector<int>(n, 0));
 
	iota(cmp, cmp + n, 0);
	for (pair<int, int> i : has[1]) onion(i.first, i.second);
	for (int i = 0; i < n; i++) cn[find(i)].push_back(i);
	for (int i = 0; i < n; i++) {
		if (!cn[i].size()) continue;
		for (int j = 1; j < cn[i].size(); j++) {
			ans[cn[i][j]][cn[i][0]] = ans[cn[i][0]][cn[i][j]] = 1;
			used[cn[i][j]] = true;
		}
		cn[i].clear();
	}
 
	for (pair<int, int> i : has[2]) onion(i.first, i.second);
	for (int i = 0; i < n; i++) if (!used[i]) cn[find(i)].push_back(i);
	for (int i = 0; i < n; i++) {
		if (cn[i].size() < 2) {
			cn[i].clear();
			continue;
		}
		if (cn[i].size() == 2) return 0;
		ans[cn[i][0]][cn[i].back()] = ans[cn[i].back()][cn[i][0]] = 1;
		for (int j = 1; j < cn[i].size(); j++)
			ans[cn[i][j]][cn[i][j - 1]] = ans[cn[i][j - 1]][cn[i][j]] = 1;
		cn[i].clear();
	}
 
	if (has[3].size()) return 0;
	for (pair<int, int> i : has[0]) if (find(i.first) == find(i.second)) return 0;
	build(ans);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:32:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |   for (int j = 1; j < cn[i].size(); j++) {
      |                   ~~^~~~~~~~~~~~~~
supertrees.cpp:48:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |   for (int j = 1; j < cn[i].size(); j++)
      |                   ~~^~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 7 ms 1496 KB Output is correct
7 Correct 164 ms 26116 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 7 ms 1496 KB Output is correct
7 Correct 164 ms 26116 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 7 ms 1492 KB Output is correct
13 Correct 168 ms 25992 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 1128 KB Output is correct
17 Correct 72 ms 16020 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 40 ms 6856 KB Output is correct
21 Correct 158 ms 26076 KB Output is correct
22 Correct 182 ms 25968 KB Output is correct
23 Correct 166 ms 25988 KB Output is correct
24 Correct 157 ms 26044 KB Output is correct
25 Correct 68 ms 16052 KB Output is correct
26 Correct 68 ms 16040 KB Output is correct
27 Correct 164 ms 26028 KB Output is correct
28 Correct 165 ms 26164 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 7 ms 1440 KB Output is correct
9 Correct 170 ms 25996 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 7 ms 1496 KB Output is correct
13 Correct 171 ms 26000 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 3 ms 1112 KB Output is correct
17 Correct 72 ms 16056 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 45 ms 6768 KB Output is correct
22 Correct 161 ms 26036 KB Output is correct
23 Correct 163 ms 26064 KB Output is correct
24 Correct 168 ms 26152 KB Output is correct
25 Correct 68 ms 16064 KB Output is correct
26 Correct 69 ms 16072 KB Output is correct
27 Correct 161 ms 26184 KB Output is correct
28 Correct 165 ms 26000 KB Output is correct
29 Correct 67 ms 16060 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 41 ms 6728 KB Output is correct
5 Correct 159 ms 26028 KB Output is correct
6 Correct 163 ms 25992 KB Output is correct
7 Correct 166 ms 26024 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 40 ms 6812 KB Output is correct
10 Correct 160 ms 26036 KB Output is correct
11 Correct 160 ms 26044 KB Output is correct
12 Correct 164 ms 25992 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 42 ms 7416 KB Output is correct
17 Correct 170 ms 27688 KB Output is correct
18 Correct 165 ms 27960 KB Output is correct
19 Correct 166 ms 27336 KB Output is correct
20 Correct 172 ms 27424 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 7 ms 1496 KB Output is correct
7 Correct 164 ms 26116 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 7 ms 1492 KB Output is correct
13 Correct 168 ms 25992 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 1128 KB Output is correct
17 Correct 72 ms 16020 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 40 ms 6856 KB Output is correct
21 Correct 158 ms 26076 KB Output is correct
22 Correct 182 ms 25968 KB Output is correct
23 Correct 166 ms 25988 KB Output is correct
24 Correct 157 ms 26044 KB Output is correct
25 Correct 68 ms 16052 KB Output is correct
26 Correct 68 ms 16040 KB Output is correct
27 Correct 164 ms 26028 KB Output is correct
28 Correct 165 ms 26164 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 600 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 7 ms 1440 KB Output is correct
37 Correct 170 ms 25996 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 7 ms 1496 KB Output is correct
41 Correct 171 ms 26000 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 3 ms 1112 KB Output is correct
45 Correct 72 ms 16056 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 45 ms 6768 KB Output is correct
50 Correct 161 ms 26036 KB Output is correct
51 Correct 163 ms 26064 KB Output is correct
52 Correct 168 ms 26152 KB Output is correct
53 Correct 68 ms 16064 KB Output is correct
54 Correct 69 ms 16072 KB Output is correct
55 Correct 161 ms 26184 KB Output is correct
56 Correct 165 ms 26000 KB Output is correct
57 Correct 67 ms 16060 KB Output is correct
58 Correct 0 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 3 ms 1116 KB Output is correct
61 Correct 79 ms 16132 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 42 ms 6764 KB Output is correct
66 Correct 71 ms 17484 KB Output is correct
67 Correct 71 ms 17380 KB Output is correct
68 Correct 69 ms 17488 KB Output is correct
69 Correct 69 ms 17408 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 7 ms 1496 KB Output is correct
7 Correct 164 ms 26116 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 7 ms 1492 KB Output is correct
13 Correct 168 ms 25992 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 1128 KB Output is correct
17 Correct 72 ms 16020 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 40 ms 6856 KB Output is correct
21 Correct 158 ms 26076 KB Output is correct
22 Correct 182 ms 25968 KB Output is correct
23 Correct 166 ms 25988 KB Output is correct
24 Correct 157 ms 26044 KB Output is correct
25 Correct 68 ms 16052 KB Output is correct
26 Correct 68 ms 16040 KB Output is correct
27 Correct 164 ms 26028 KB Output is correct
28 Correct 165 ms 26164 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 600 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 7 ms 1440 KB Output is correct
37 Correct 170 ms 25996 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 7 ms 1496 KB Output is correct
41 Correct 171 ms 26000 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 3 ms 1112 KB Output is correct
45 Correct 72 ms 16056 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 45 ms 6768 KB Output is correct
50 Correct 161 ms 26036 KB Output is correct
51 Correct 163 ms 26064 KB Output is correct
52 Correct 168 ms 26152 KB Output is correct
53 Correct 68 ms 16064 KB Output is correct
54 Correct 69 ms 16072 KB Output is correct
55 Correct 161 ms 26184 KB Output is correct
56 Correct 165 ms 26000 KB Output is correct
57 Correct 67 ms 16060 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 1 ms 344 KB Output is correct
61 Correct 41 ms 6728 KB Output is correct
62 Correct 159 ms 26028 KB Output is correct
63 Correct 163 ms 25992 KB Output is correct
64 Correct 166 ms 26024 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Correct 40 ms 6812 KB Output is correct
67 Correct 160 ms 26036 KB Output is correct
68 Correct 160 ms 26044 KB Output is correct
69 Correct 164 ms 25992 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 1 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 42 ms 7416 KB Output is correct
74 Correct 170 ms 27688 KB Output is correct
75 Correct 165 ms 27960 KB Output is correct
76 Correct 166 ms 27336 KB Output is correct
77 Correct 172 ms 27424 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 3 ms 1116 KB Output is correct
81 Correct 79 ms 16132 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 42 ms 6764 KB Output is correct
86 Correct 71 ms 17484 KB Output is correct
87 Correct 71 ms 17380 KB Output is correct
88 Correct 69 ms 17488 KB Output is correct
89 Correct 69 ms 17408 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 1 ms 344 KB Output is correct
92 Correct 4 ms 1112 KB Output is correct
93 Correct 81 ms 17452 KB Output is correct
94 Correct 1 ms 348 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 1 ms 344 KB Output is correct
97 Correct 17 ms 4816 KB Output is correct
98 Correct 70 ms 17476 KB Output is correct
99 Correct 78 ms 17384 KB Output is correct
100 Correct 70 ms 17356 KB Output is correct
101 Correct 66 ms 17344 KB Output is correct
102 Correct 70 ms 17480 KB Output is correct
103 Correct 74 ms 17340 KB Output is correct
104 Correct 71 ms 17508 KB Output is correct
105 Correct 71 ms 17316 KB Output is correct