oj.uz

Submission #1043745

# Submission time Handle Problem Language Result Execution time Memory
1043745 2024-08-04T15:49:13 Z DeathIsAwe Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 109 ms 24200 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;

int construct(vector<vector<int>> p) {
	int n = p.size(), prev;
	vector<vector<int>> ans(n), forest;
	vector<int> tree;
	bool visited[n];
	for (int i=0;i<n;i++) {
		visited[i] = false;
		for (int j=0;j<n;j++) {
			ans[i].push_back(0);
		}
	}



	for (int i=0;i<n;i++) {
		if (visited[i]) {
			continue;
		}
		visited[i] = true;
		tree.clear(); tree.push_back(i);
		for (int j=0;j<n;j++) {
			if (j == i) {
				continue;
			}
			if (p[i][j] == 1) {
				if (visited[j]) {
					return 0;
				}
				visited[j] = true;
				tree.push_back(j);
			} else if (p[i][j] == 3) {
				return 0;
			}
		}
		prev = i;
		for (int j: tree) {
			ans[prev][j] = 1;
			ans[j][prev] = 1;
			prev = j;
		}
		ans[i][i] = 0;
		for (int j: tree) {
			for (int k: tree) {
				if (p[j][k] != 1) {
					return 0;
				}
			}
		}
		forest.push_back(tree);
	}
	


	for (int i=0;i<n;i++) {
		visited[i] = false;
	}
	vector<int> group;
	vector<int> grouptags(forest.size(), -1);
	for (int i=0;i<forest.size();i++) {
		if (visited[forest[i][0]]) {
			continue;
		}
		visited[forest[i][0]] = true;
		group = {i};
		grouptags[i] = i;
		for (int j=i+1;j<forest.size();j++) {
			if (p[forest[i][0]][forest[j][0]] == 2) {
				visited[forest[j][0]] = true;
				group.push_back(j);
				grouptags[j] = i;
			}
		}
		//for (int j: group) {
		//	cout << j << ' ';
		//}
		//cout << '\n';
		if (group.size() == 2) {
			return 0;
		}
		for (int j: group) {
			for (int k=0;k<forest.size();k++) {
				if (j == k) {
					continue;
				}
				if (grouptags[k] != i) {
					for (int l: forest[k]) {
						for (int m: forest[j]) {
							if (p[m][l] != 0) {
								return 0;
							}
						}
					}
				} else {
					for (int l: forest[k]) {
						for (int m: forest[j]) {
							if (p[m][l] != 2) {
								return 0;
							}
						}
					}
				}
			}
		}
		prev = forest[i][0];
		for (int j: group) {
			ans[prev][forest[j][0]] = 1;
			ans[forest[j][0]][prev] = 1;
			prev = forest[j][0];
		}
		ans[forest[i][0]][forest[i][0]] = 0;
		if (prev ==forest[i][0]) {
			continue;
		}
		ans[prev][forest[i][0]] = 1;
		ans[forest[i][0]][prev] = 1;
	}


	
	build(ans);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:63:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |  for (int i=0;i<forest.size();i++) {
      |               ~^~~~~~~~~~~~~~
supertrees.cpp:70:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |   for (int j=i+1;j<forest.size();j++) {
      |                  ~^~~~~~~~~~~~~~
supertrees.cpp:85:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |    for (int k=0;k<forest.size();k++) {
      |                 ~^~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 4 ms 1116 KB Output is correct
7 Correct 93 ms 22128 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 4 ms 1116 KB Output is correct
7 Correct 93 ms 22128 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1360 KB Output is correct
13 Correct 106 ms 22308 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 47 ms 12312 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 24 ms 5780 KB Output is correct
21 Correct 98 ms 22036 KB Output is correct
22 Correct 98 ms 22096 KB Output is correct
23 Correct 102 ms 22100 KB Output is correct
24 Correct 99 ms 22096 KB Output is correct
25 Correct 45 ms 12368 KB Output is correct
26 Correct 41 ms 12368 KB Output is correct
27 Correct 100 ms 22100 KB Output is correct
28 Correct 108 ms 22096 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 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 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 4 ms 1372 KB Output is correct
9 Correct 102 ms 22296 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1352 KB Output is correct
13 Correct 100 ms 22100 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 47 ms 12308 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 24 ms 5804 KB Output is correct
22 Correct 109 ms 22320 KB Output is correct
23 Correct 101 ms 22100 KB Output is correct
24 Correct 105 ms 22096 KB Output is correct
25 Correct 48 ms 12372 KB Output is correct
26 Correct 45 ms 12372 KB Output is correct
27 Correct 103 ms 22292 KB Output is correct
28 Correct 106 ms 22100 KB Output is correct
29 Correct 47 ms 12368 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 0 ms 348 KB Output is correct
4 Correct 25 ms 5724 KB Output is correct
5 Correct 101 ms 22100 KB Output is correct
6 Correct 96 ms 22100 KB Output is correct
7 Correct 102 ms 22096 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 28 ms 5932 KB Output is correct
10 Correct 103 ms 22280 KB Output is correct
11 Correct 104 ms 22552 KB Output is correct
12 Correct 104 ms 22100 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 24 ms 5780 KB Output is correct
17 Correct 108 ms 24100 KB Output is correct
18 Correct 107 ms 24200 KB Output is correct
19 Correct 105 ms 24040 KB Output is correct
20 Correct 100 ms 24148 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 4 ms 1116 KB Output is correct
7 Correct 93 ms 22128 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1360 KB Output is correct
13 Correct 106 ms 22308 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 47 ms 12312 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 24 ms 5780 KB Output is correct
21 Correct 98 ms 22036 KB Output is correct
22 Correct 98 ms 22096 KB Output is correct
23 Correct 102 ms 22100 KB Output is correct
24 Correct 99 ms 22096 KB Output is correct
25 Correct 45 ms 12368 KB Output is correct
26 Correct 41 ms 12368 KB Output is correct
27 Correct 100 ms 22100 KB Output is correct
28 Correct 108 ms 22096 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 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 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 4 ms 1372 KB Output is correct
37 Correct 102 ms 22296 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 4 ms 1352 KB Output is correct
41 Correct 100 ms 22100 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 2 ms 860 KB Output is correct
45 Correct 47 ms 12308 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 24 ms 5804 KB Output is correct
50 Correct 109 ms 22320 KB Output is correct
51 Correct 101 ms 22100 KB Output is correct
52 Correct 105 ms 22096 KB Output is correct
53 Correct 48 ms 12372 KB Output is correct
54 Correct 45 ms 12372 KB Output is correct
55 Correct 103 ms 22292 KB Output is correct
56 Correct 106 ms 22100 KB Output is correct
57 Correct 47 ms 12368 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 2 ms 860 KB Output is correct
61 Correct 47 ms 12304 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 33 ms 5724 KB Output is correct
66 Correct 46 ms 14344 KB Output is correct
67 Correct 60 ms 14260 KB Output is correct
68 Correct 56 ms 14216 KB Output is correct
69 Correct 44 ms 14204 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 4 ms 1116 KB Output is correct
7 Correct 93 ms 22128 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1360 KB Output is correct
13 Correct 106 ms 22308 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 47 ms 12312 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 24 ms 5780 KB Output is correct
21 Correct 98 ms 22036 KB Output is correct
22 Correct 98 ms 22096 KB Output is correct
23 Correct 102 ms 22100 KB Output is correct
24 Correct 99 ms 22096 KB Output is correct
25 Correct 45 ms 12368 KB Output is correct
26 Correct 41 ms 12368 KB Output is correct
27 Correct 100 ms 22100 KB Output is correct
28 Correct 108 ms 22096 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 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 344 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 4 ms 1372 KB Output is correct
37 Correct 102 ms 22296 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 4 ms 1352 KB Output is correct
41 Correct 100 ms 22100 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 2 ms 860 KB Output is correct
45 Correct 47 ms 12308 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 24 ms 5804 KB Output is correct
50 Correct 109 ms 22320 KB Output is correct
51 Correct 101 ms 22100 KB Output is correct
52 Correct 105 ms 22096 KB Output is correct
53 Correct 48 ms 12372 KB Output is correct
54 Correct 45 ms 12372 KB Output is correct
55 Correct 103 ms 22292 KB Output is correct
56 Correct 106 ms 22100 KB Output is correct
57 Correct 47 ms 12368 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 25 ms 5724 KB Output is correct
62 Correct 101 ms 22100 KB Output is correct
63 Correct 96 ms 22100 KB Output is correct
64 Correct 102 ms 22096 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 28 ms 5932 KB Output is correct
67 Correct 103 ms 22280 KB Output is correct
68 Correct 104 ms 22552 KB Output is correct
69 Correct 104 ms 22100 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 24 ms 5780 KB Output is correct
74 Correct 108 ms 24100 KB Output is correct
75 Correct 107 ms 24200 KB Output is correct
76 Correct 105 ms 24040 KB Output is correct
77 Correct 100 ms 24148 KB Output is correct
78 Correct 1 ms 344 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 2 ms 860 KB Output is correct
81 Correct 47 ms 12304 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 33 ms 5724 KB Output is correct
86 Correct 46 ms 14344 KB Output is correct
87 Correct 60 ms 14260 KB Output is correct
88 Correct 56 ms 14216 KB Output is correct
89 Correct 44 ms 14204 KB Output is correct
90 Correct 0 ms 348 KB Output is correct
91 Correct 0 ms 348 KB Output is correct
92 Correct 2 ms 960 KB Output is correct
93 Correct 47 ms 14084 KB Output is correct
94 Correct 1 ms 344 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 0 ms 348 KB Output is correct
97 Correct 12 ms 3932 KB Output is correct
98 Correct 46 ms 14092 KB Output is correct
99 Correct 56 ms 14160 KB Output is correct
100 Correct 58 ms 14164 KB Output is correct
101 Correct 44 ms 14416 KB Output is correct
102 Correct 41 ms 14160 KB Output is correct
103 Correct 42 ms 14160 KB Output is correct
104 Correct 42 ms 14160 KB Output is correct
105 Correct 46 ms 14164 KB Output is correct