oj.uz

Submission #386037

# Submission time Handle Problem Language Result Execution time Memory
386037 2021-04-05T13:19:02 Z AdOjis485 Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 294 ms 28240 KB 
#include "supertrees.h"
#include <vector>
#include <iostream>
#include <map>
using namespace std;

int construct(vector<vector<int>> p) 
{
	int n = p.size();
	
	map<vector<int>, int> m;
	vector<vector<int> > parts;
	
	for(int i = 0; i < n; i ++)
	{
		if(m.count(p[i]) == 0)
		{
			m[p[i]] = m.size();
			parts.push_back({i});
		}
		else parts[m[p[i]]].push_back(i);
	}

	vector<bool> done(n);
	vector<vector<int> > answer(n, vector<int> (n));

	cerr << "parts:\n";
	for(auto part : parts)
	{
		for(auto el : part) cerr << el << " ";
		cerr << '\n';
	}

	bool poss = true;
	for(int i = 0; i < n; i ++)
	{
		int numparts = 0;
		vector<int> comp;
		if(done[i]) continue;
		int last = -1;
		int first = -1;

		int compsizei = 0;
		for(int j = 0; j < n; j ++) compsizei += (p[i][j] > 0);

		for(int j = 0; j < parts.size(); j ++)
		{
			if(p[i][parts[j][0]] == 0) continue;

			numparts ++;

			if(first < 0) first = parts[j][0];

			int compsizecur = 0;
			for(int el : p[parts[j][0]]) compsizecur += (el > 0);
			if(compsizecur != compsizei) poss = false;

			for(int k = 0; k < parts[j].size(); k ++)
			{
				int cur = parts[j][k];
				done[cur] = true;
				comp.push_back(cur);
				if(k == 0)
				{
					if(last >= 0)
					{
						answer[cur][last] = 1;
						answer[last][cur] = 1;
					}		
				}
				else 
				{
					answer[cur][parts[j][k - 1]] = 1;
					answer[parts[j][k - 1]][cur] = 1;
				}
			}

			last = parts[j][0];
		}

		if(last != first) 
		{
			answer[first][last] = 1;
			answer[last][first] = 1;
		}

		for(int a : comp)
		{
			for(int b : comp) if(p[a][b] == 0) poss = false;
		}

		if(comp.size() != compsizei) poss = false;
		if(numparts == 2) poss = false;
	}
	
	for(auto part : parts)
	{
		int count = 0;
		for(auto el : p[part[0]]) count += el % 2;
		poss &= (count == part.size());
	}

	if(poss)
	{
		build(answer);
		return 1;
	}
	else return 0;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:46:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |   for(int j = 0; j < parts.size(); j ++)
      |                  ~~^~~~~~~~~~~~~~
supertrees.cpp:58:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |    for(int k = 0; k < parts[j].size(); k ++)
      |                   ~~^~~~~~~~~~~~~~~~~
supertrees.cpp:92:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   92 |   if(comp.size() != compsizei) poss = false;
      |      ~~~~~~~~~~~~^~~~~~~~~~~~
supertrees.cpp:100:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  100 |   poss &= (count == part.size());
      |            ~~~~~~^~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 250 ms 22124 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 250 ms 22124 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 13 ms 1388 KB Output is correct
13 Correct 269 ms 26220 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 9 ms 1004 KB Output is correct
17 Correct 128 ms 16236 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 2 ms 364 KB Output is correct
20 Correct 82 ms 5996 KB Output is correct
21 Correct 248 ms 22252 KB Output is correct
22 Correct 258 ms 23788 KB Output is correct
23 Correct 257 ms 22124 KB Output is correct
24 Correct 268 ms 25964 KB Output is correct
25 Correct 111 ms 12268 KB Output is correct
26 Correct 120 ms 13804 KB Output is correct
27 Correct 260 ms 22124 KB Output is correct
28 Correct 270 ms 25964 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 13 ms 1516 KB Output is correct
9 Correct 281 ms 28240 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 13 ms 1516 KB Output is correct
13 Correct 267 ms 28140 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 3 ms 364 KB Output is correct
16 Correct 7 ms 1132 KB Output is correct
17 Correct 162 ms 18156 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 66 ms 7404 KB Output is correct
22 Correct 263 ms 28140 KB Output is correct
23 Correct 256 ms 28140 KB Output is correct
24 Correct 272 ms 28140 KB Output is correct
25 Correct 134 ms 18156 KB Output is correct
26 Correct 124 ms 18284 KB Output is correct
27 Correct 257 ms 27756 KB Output is correct
28 Correct 294 ms 28140 KB Output is correct
29 Correct 134 ms 18284 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 65 ms 5996 KB Output is correct
5 Correct 249 ms 22124 KB Output is correct
6 Correct 252 ms 23916 KB Output is correct
7 Correct 252 ms 22124 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 68 ms 6892 KB Output is correct
10 Correct 258 ms 26348 KB Output is correct
11 Correct 257 ms 26220 KB Output is correct
12 Correct 270 ms 26220 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 66 ms 6764 KB Output is correct
17 Correct 257 ms 26220 KB Output is correct
18 Correct 264 ms 24300 KB Output is correct
19 Correct 251 ms 24556 KB Output is correct
20 Correct 272 ms 26092 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 250 ms 22124 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 13 ms 1388 KB Output is correct
13 Correct 269 ms 26220 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 9 ms 1004 KB Output is correct
17 Correct 128 ms 16236 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 2 ms 364 KB Output is correct
20 Correct 82 ms 5996 KB Output is correct
21 Correct 248 ms 22252 KB Output is correct
22 Correct 258 ms 23788 KB Output is correct
23 Correct 257 ms 22124 KB Output is correct
24 Correct 268 ms 25964 KB Output is correct
25 Correct 111 ms 12268 KB Output is correct
26 Correct 120 ms 13804 KB Output is correct
27 Correct 260 ms 22124 KB Output is correct
28 Correct 270 ms 25964 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 2 ms 364 KB Output is correct
36 Correct 13 ms 1516 KB Output is correct
37 Correct 281 ms 28240 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 13 ms 1516 KB Output is correct
41 Correct 267 ms 28140 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 3 ms 364 KB Output is correct
44 Correct 7 ms 1132 KB Output is correct
45 Correct 162 ms 18156 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 66 ms 7404 KB Output is correct
50 Correct 263 ms 28140 KB Output is correct
51 Correct 256 ms 28140 KB Output is correct
52 Correct 272 ms 28140 KB Output is correct
53 Correct 134 ms 18156 KB Output is correct
54 Correct 124 ms 18284 KB Output is correct
55 Correct 257 ms 27756 KB Output is correct
56 Correct 294 ms 28140 KB Output is correct
57 Correct 134 ms 18284 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 2 ms 364 KB Output is correct
60 Correct 7 ms 1132 KB Output is correct
61 Correct 127 ms 18284 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 2 ms 364 KB Output is correct
65 Correct 66 ms 7148 KB Output is correct
66 Correct 124 ms 18256 KB Output is correct
67 Correct 121 ms 16876 KB Output is correct
68 Correct 119 ms 16364 KB Output is correct
69 Correct 146 ms 18028 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 250 ms 22124 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 2 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 13 ms 1388 KB Output is correct
13 Correct 269 ms 26220 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 9 ms 1004 KB Output is correct
17 Correct 128 ms 16236 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 2 ms 364 KB Output is correct
20 Correct 82 ms 5996 KB Output is correct
21 Correct 248 ms 22252 KB Output is correct
22 Correct 258 ms 23788 KB Output is correct
23 Correct 257 ms 22124 KB Output is correct
24 Correct 268 ms 25964 KB Output is correct
25 Correct 111 ms 12268 KB Output is correct
26 Correct 120 ms 13804 KB Output is correct
27 Correct 260 ms 22124 KB Output is correct
28 Correct 270 ms 25964 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 2 ms 364 KB Output is correct
36 Correct 13 ms 1516 KB Output is correct
37 Correct 281 ms 28240 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 13 ms 1516 KB Output is correct
41 Correct 267 ms 28140 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 3 ms 364 KB Output is correct
44 Correct 7 ms 1132 KB Output is correct
45 Correct 162 ms 18156 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 66 ms 7404 KB Output is correct
50 Correct 263 ms 28140 KB Output is correct
51 Correct 256 ms 28140 KB Output is correct
52 Correct 272 ms 28140 KB Output is correct
53 Correct 134 ms 18156 KB Output is correct
54 Correct 124 ms 18284 KB Output is correct
55 Correct 257 ms 27756 KB Output is correct
56 Correct 294 ms 28140 KB Output is correct
57 Correct 134 ms 18284 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 65 ms 5996 KB Output is correct
62 Correct 249 ms 22124 KB Output is correct
63 Correct 252 ms 23916 KB Output is correct
64 Correct 252 ms 22124 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 68 ms 6892 KB Output is correct
67 Correct 258 ms 26348 KB Output is correct
68 Correct 257 ms 26220 KB Output is correct
69 Correct 270 ms 26220 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 1 ms 364 KB Output is correct
72 Correct 1 ms 364 KB Output is correct
73 Correct 66 ms 6764 KB Output is correct
74 Correct 257 ms 26220 KB Output is correct
75 Correct 264 ms 24300 KB Output is correct
76 Correct 251 ms 24556 KB Output is correct
77 Correct 272 ms 26092 KB Output is correct
78 Correct 1 ms 364 KB Output is correct
79 Correct 2 ms 364 KB Output is correct
80 Correct 7 ms 1132 KB Output is correct
81 Correct 127 ms 18284 KB Output is correct
82 Correct 1 ms 364 KB Output is correct
83 Correct 1 ms 364 KB Output is correct
84 Correct 2 ms 364 KB Output is correct
85 Correct 66 ms 7148 KB Output is correct
86 Correct 124 ms 18256 KB Output is correct
87 Correct 121 ms 16876 KB Output is correct
88 Correct 119 ms 16364 KB Output is correct
89 Correct 146 ms 18028 KB Output is correct
90 Correct 1 ms 364 KB Output is correct
91 Correct 1 ms 364 KB Output is correct
92 Correct 7 ms 1132 KB Output is correct
93 Correct 124 ms 18156 KB Output is correct
94 Correct 1 ms 364 KB Output is correct
95 Correct 1 ms 388 KB Output is correct
96 Correct 1 ms 364 KB Output is correct
97 Correct 32 ms 4716 KB Output is correct
98 Correct 129 ms 18284 KB Output is correct
99 Correct 137 ms 16236 KB Output is correct
100 Correct 122 ms 16336 KB Output is correct
101 Correct 131 ms 18176 KB Output is correct
102 Correct 134 ms 18156 KB Output is correct
103 Correct 123 ms 18256 KB Output is correct
104 Correct 116 ms 18156 KB Output is correct
105 Correct 130 ms 18256 KB Output is correct