oj.uz

Submission #399444

# Submission time Handle Problem Language Result Execution time Memory
399444 2021-05-05T19:52:16 Z bipartite_matching Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 259 ms 28180 KB 
#include <bits/stdc++.h>

#define forint(i, N) for (int i = 0; i < (N); i++)

using namespace std; 

void build(vector< vector<int> > b);

int construct(vector< vector<int> > p) {
	int n = p.size();

	//vector<int> coor(n, -1);
	

	vector< vector<int> > ans(n, vector<int>(n, 0));

	vector<int> visited(n, false);

	vector< vector<int> > p2(n, vector<int>(n, 0));

	forint(i, n) {
		//cerr << i << endl;
		if (!visited[i]) {
			vector< vector<int> > tree;

			visited[i] = true;
		//if (coor[i] == -1) {
			//coor[i] == i;
			tree.push_back({i});

			vector<int> tmp;
			//tmp.push_back(i);

			for (int j = i + 1; j < n; j++) {
				if (p[i][j] == 3) {
					return 0;
				}
				if (p[i][j] == 1) {
					
					//if (coor[j] != -1) {
					if (visited[j]) {
						return 0;
					}

					//coor[j] = i;
					ans[i][j] = 1;
					ans[j][i] = 1;

					visited[j] = true;
					tree[tree.size()-1].push_back(j);

				}
				if (p[i][j] == 2) {
					//cerr << "eh " << j << endl;
					tmp.push_back(j);
				}

			}

			if (tmp.size() == 1) {
				return 0;
			}

			if (tmp.size() > 1) {
				int last_node = i;
				for (int k = 0; k < tmp.size(); k++) {
					if (!visited[tmp[k]]) {

						visited[tmp[k]] =  true;

						tree.push_back({tmp[k]});

						ans[last_node][tmp[k]] = 1;
						ans[tmp[k]][last_node] = 1;

						last_node = tmp[k];

						for (int k2 = k+1; k2 < tmp.size(); k2++) {
							if (!visited[tmp[k2]] && p[tmp[k]][tmp[k2]] == 1) {
								visited[tmp[k2]] = true;
								ans[tmp[k]][tmp[k2]] = 1;
								ans[tmp[k2]][tmp[k]] = 1;
								tree[tree.size()-1].push_back(tmp[k2]);
							}
						}
					}
				}

				ans[last_node][i] = 1;
				ans[i][last_node] = 1;
			}

			//tree.push_back(tmp);
			/*
			cerr << i << "-----" << endl;
			for (auto a : tree) {
				for (auto b: a) {
					cerr << b << " ";
				}
				cerr << endl;
			}
			cerr << "-----" << endl;
			*/

			for (int k = 0; k < tree.size(); k++) {

				for (auto a : tree[k]) {
					for (auto b : tree[k]) {
						p2[a][b] = 1;
					}
				}

				for (int k2 = k+1; k2 < tree.size(); k2++) {
					for (auto a : tree[k]) {
						for (auto b : tree[k2]) {
							p2[a][b] = 2;
							p2[b][a] = 2;
						}
					}
				}
			}
		}
		/*
		else {
			forint(j, n) {
				if (p[i][j] != p[coor[i]][j]) {
					return 0;
				}
			}
		}
		*/

	}


	forint(i, n) {
		forint(j, n) {			
			if (p[i][j] != p2[i][j]) {
				
//cerr << i << " " << j << "---" << p2[i][j] << endl;

				return 0;

			}

		}
	}

	build(ans);

	return 1;

}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:66:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |     for (int k = 0; k < tmp.size(); k++) {
      |                     ~~^~~~~~~~~~~~
supertrees.cpp:78:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |       for (int k2 = k+1; k2 < tmp.size(); k2++) {
      |                          ~~~^~~~~~~~~~~~
supertrees.cpp:105:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  105 |    for (int k = 0; k < tree.size(); k++) {
      |                    ~~^~~~~~~~~~~~~
supertrees.cpp:113:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  113 |     for (int k2 = k+1; k2 < tree.size(); k2++) {
      |                        ~~~^~~~~~~~~~~~~

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 11 ms 1356 KB Output is correct
7 Correct 245 ms 27888 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 11 ms 1356 KB Output is correct
7 Correct 245 ms 27888 KB Output is correct
8 Correct 1 ms 272 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 1400 KB Output is correct
13 Correct 245 ms 28044 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 972 KB Output is correct
17 Correct 109 ms 18044 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 7160 KB Output is correct
21 Correct 245 ms 27908 KB Output is correct
22 Correct 252 ms 27904 KB Output is correct
23 Correct 251 ms 28032 KB Output is correct
24 Correct 249 ms 27884 KB Output is correct
25 Correct 106 ms 18244 KB Output is correct
26 Correct 103 ms 18048 KB Output is correct
27 Correct 249 ms 27876 KB Output is correct
28 Correct 244 ms 27844 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 296 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 11 ms 1368 KB Output is correct
9 Correct 241 ms 27924 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 1408 KB Output is correct
13 Correct 248 ms 28044 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 972 KB Output is correct
17 Correct 111 ms 18036 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 61 ms 7160 KB Output is correct
22 Correct 246 ms 27892 KB Output is correct
23 Correct 250 ms 28180 KB Output is correct
24 Correct 254 ms 27896 KB Output is correct
25 Correct 106 ms 17988 KB Output is correct
26 Correct 104 ms 18040 KB Output is correct
27 Correct 242 ms 27948 KB Output is correct
28 Correct 251 ms 27972 KB Output is correct
29 Correct 104 ms 17988 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 220 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 62 ms 7152 KB Output is correct
5 Correct 242 ms 27944 KB Output is correct
6 Correct 243 ms 27844 KB Output is correct
7 Correct 251 ms 27972 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 61 ms 7176 KB Output is correct
10 Correct 249 ms 27912 KB Output is correct
11 Correct 240 ms 27844 KB Output is correct
12 Correct 259 ms 28020 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 61 ms 7156 KB Output is correct
17 Correct 248 ms 27952 KB Output is correct
18 Correct 245 ms 27908 KB Output is correct
19 Correct 241 ms 27872 KB Output is correct
20 Correct 244 ms 27960 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 11 ms 1356 KB Output is correct
7 Correct 245 ms 27888 KB Output is correct
8 Correct 1 ms 272 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 1400 KB Output is correct
13 Correct 245 ms 28044 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 972 KB Output is correct
17 Correct 109 ms 18044 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 7160 KB Output is correct
21 Correct 245 ms 27908 KB Output is correct
22 Correct 252 ms 27904 KB Output is correct
23 Correct 251 ms 28032 KB Output is correct
24 Correct 249 ms 27884 KB Output is correct
25 Correct 106 ms 18244 KB Output is correct
26 Correct 103 ms 18048 KB Output is correct
27 Correct 249 ms 27876 KB Output is correct
28 Correct 244 ms 27844 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 296 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 11 ms 1368 KB Output is correct
37 Correct 241 ms 27924 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 11 ms 1408 KB Output is correct
41 Correct 248 ms 28044 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 5 ms 972 KB Output is correct
45 Correct 111 ms 18036 KB Output is correct
46 Correct 1 ms 208 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 61 ms 7160 KB Output is correct
50 Correct 246 ms 27892 KB Output is correct
51 Correct 250 ms 28180 KB Output is correct
52 Correct 254 ms 27896 KB Output is correct
53 Correct 106 ms 17988 KB Output is correct
54 Correct 104 ms 18040 KB Output is correct
55 Correct 242 ms 27948 KB Output is correct
56 Correct 251 ms 27972 KB Output is correct
57 Correct 104 ms 17988 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 5 ms 948 KB Output is correct
61 Correct 109 ms 18032 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 64 ms 7272 KB Output is correct
66 Correct 105 ms 18048 KB Output is correct
67 Correct 107 ms 18044 KB Output is correct
68 Correct 101 ms 17992 KB Output is correct
69 Correct 101 ms 18036 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 11 ms 1356 KB Output is correct
7 Correct 245 ms 27888 KB Output is correct
8 Correct 1 ms 272 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 1400 KB Output is correct
13 Correct 245 ms 28044 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 5 ms 972 KB Output is correct
17 Correct 109 ms 18044 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 61 ms 7160 KB Output is correct
21 Correct 245 ms 27908 KB Output is correct
22 Correct 252 ms 27904 KB Output is correct
23 Correct 251 ms 28032 KB Output is correct
24 Correct 249 ms 27884 KB Output is correct
25 Correct 106 ms 18244 KB Output is correct
26 Correct 103 ms 18048 KB Output is correct
27 Correct 249 ms 27876 KB Output is correct
28 Correct 244 ms 27844 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 296 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 11 ms 1368 KB Output is correct
37 Correct 241 ms 27924 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 11 ms 1408 KB Output is correct
41 Correct 248 ms 28044 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 5 ms 972 KB Output is correct
45 Correct 111 ms 18036 KB Output is correct
46 Correct 1 ms 208 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 61 ms 7160 KB Output is correct
50 Correct 246 ms 27892 KB Output is correct
51 Correct 250 ms 28180 KB Output is correct
52 Correct 254 ms 27896 KB Output is correct
53 Correct 106 ms 17988 KB Output is correct
54 Correct 104 ms 18040 KB Output is correct
55 Correct 242 ms 27948 KB Output is correct
56 Correct 251 ms 27972 KB Output is correct
57 Correct 104 ms 17988 KB Output is correct
58 Correct 1 ms 220 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 62 ms 7152 KB Output is correct
62 Correct 242 ms 27944 KB Output is correct
63 Correct 243 ms 27844 KB Output is correct
64 Correct 251 ms 27972 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 61 ms 7176 KB Output is correct
67 Correct 249 ms 27912 KB Output is correct
68 Correct 240 ms 27844 KB Output is correct
69 Correct 259 ms 28020 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 61 ms 7156 KB Output is correct
74 Correct 248 ms 27952 KB Output is correct
75 Correct 245 ms 27908 KB Output is correct
76 Correct 241 ms 27872 KB Output is correct
77 Correct 244 ms 27960 KB Output is correct
78 Correct 1 ms 204 KB Output is correct
79 Correct 1 ms 204 KB Output is correct
80 Correct 5 ms 948 KB Output is correct
81 Correct 109 ms 18032 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 64 ms 7272 KB Output is correct
86 Correct 105 ms 18048 KB Output is correct
87 Correct 107 ms 18044 KB Output is correct
88 Correct 101 ms 17992 KB Output is correct
89 Correct 101 ms 18036 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 972 KB Output is correct
93 Correct 105 ms 18036 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 204 KB Output is correct
97 Correct 26 ms 4708 KB Output is correct
98 Correct 108 ms 18044 KB Output is correct
99 Correct 103 ms 18036 KB Output is correct
100 Correct 102 ms 18036 KB Output is correct
101 Correct 105 ms 18052 KB Output is correct
102 Correct 99 ms 18048 KB Output is correct
103 Correct 102 ms 17988 KB Output is correct
104 Correct 100 ms 17988 KB Output is correct
105 Correct 108 ms 17960 KB Output is correct