oj.uz

Submission #823003

# Submission time Handle Problem Language Result Execution time Memory
823003 2023-08-12T06:55:26 Z fatemetmhr Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 195 ms 26012 KB 
// :)

#include "supertrees.h"
#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define fi     first
#define se     second
#define mp     make_pair
#define pb     push_back

typedef long long ll;


const int maxn5 = 1e3 + 10;

vector<vector<int>> ret;
vector <int> tp, av, ver;
bool mark[maxn5], mark2[maxn5];
int n, a[maxn5][maxn5];

void dfs0(int v){
	mark[v] = true;
	ver.pb(v);
	for(int i = 0; i < n; i++) if(a[v][i] > 0 && !mark[i])
		dfs0(i);
}

void dfs1(int v){
	mark2[v] = true;
	av.pb(v);
	for(int i = 0; i < n; i++) if(a[v][i] == 1 && !mark2[i]){
		ret[v][i] = ret[i][v] = 1;
		dfs1(i);
	}
}

int construct(std::vector<std::vector<int>> p) {
	n = p.size();
	for (int i = 0; i < n; i++){
		vector<int> row;
		row.resize(n);
		fill(all(row), 0);
		ret.push_back(row);
		for(int j = 0; j < n; j++)
			a[i][j] = p[i][j];
	}
	for(int i = 0; i < n; i++) if(!mark[i]){
		ver.clear();
		tp.clear();
		dfs0(i);
		for(int j = 0; j < ver.size(); j++) for(int k = 0; k < ver.size(); k++)
			if(a[ver[j]][ver[k]] == 0)
				return 0;
		for(auto u : ver) if(!mark2[u]){
			av.clear();
			dfs1(u);
			for(int i = 0; i < av.size(); i++) for(int j = 0; j < av.size(); j++)
				if(a[av[i]][av[j]] != 1)
					return 0;
			tp.pb(u);
		}
		if(tp.size() == 2)
			return 0;
		for(int i = 1; i < int(tp.size()); i++)
			ret[tp[i]][tp[i - 1]] = ret[tp[i - 1]][tp[i]] = 1;
		if(tp.size() > 1)
			ret[tp.back()][tp[0]] = ret[tp[0]][tp.back()] = 1;
	}
	build(ret);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:54:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |   for(int j = 0; j < ver.size(); j++) for(int k = 0; k < ver.size(); k++)
      |                  ~~^~~~~~~~~~~~
supertrees.cpp:54:56: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |   for(int j = 0; j < ver.size(); j++) for(int k = 0; k < ver.size(); k++)
      |                                                      ~~^~~~~~~~~~~~
supertrees.cpp:60:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |    for(int i = 0; i < av.size(); i++) for(int j = 0; j < av.size(); j++)
      |                   ~~^~~~~~~~~~~
supertrees.cpp:60:56: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |    for(int i = 0; i < av.size(); i++) for(int j = 0; j < av.size(); j++)
      |                                                      ~~^~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 7 ms 2008 KB Output is correct
7 Correct 159 ms 26000 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 7 ms 2008 KB Output is correct
7 Correct 159 ms 26000 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1972 KB Output is correct
13 Correct 175 ms 26012 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 1492 KB Output is correct
17 Correct 75 ms 16136 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 7744 KB Output is correct
21 Correct 163 ms 25996 KB Output is correct
22 Correct 158 ms 26000 KB Output is correct
23 Correct 157 ms 25932 KB Output is correct
24 Correct 159 ms 25972 KB Output is correct
25 Correct 77 ms 16012 KB Output is correct
26 Correct 65 ms 16060 KB Output is correct
27 Correct 195 ms 26008 KB Output is correct
28 Correct 152 ms 25960 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 7 ms 1972 KB Output is correct
9 Correct 158 ms 25996 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1956 KB Output is correct
13 Correct 149 ms 25992 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 1492 KB Output is correct
17 Correct 77 ms 16152 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 46 ms 7692 KB Output is correct
22 Correct 194 ms 25924 KB Output is correct
23 Correct 153 ms 25936 KB Output is correct
24 Correct 180 ms 25932 KB Output is correct
25 Correct 67 ms 16012 KB Output is correct
26 Correct 61 ms 16020 KB Output is correct
27 Correct 151 ms 25912 KB Output is correct
28 Correct 172 ms 25912 KB Output is correct
29 Correct 66 ms 15996 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 39 ms 7688 KB Output is correct
5 Correct 155 ms 25944 KB Output is correct
6 Correct 159 ms 26008 KB Output is correct
7 Correct 167 ms 25968 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 51 ms 7688 KB Output is correct
10 Correct 159 ms 25996 KB Output is correct
11 Correct 159 ms 26008 KB Output is correct
12 Correct 178 ms 25996 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 40 ms 7672 KB Output is correct
17 Correct 166 ms 26008 KB Output is correct
18 Correct 158 ms 25944 KB Output is correct
19 Correct 153 ms 25908 KB Output is correct
20 Correct 176 ms 25912 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 7 ms 2008 KB Output is correct
7 Correct 159 ms 26000 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1972 KB Output is correct
13 Correct 175 ms 26012 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 1492 KB Output is correct
17 Correct 75 ms 16136 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 7744 KB Output is correct
21 Correct 163 ms 25996 KB Output is correct
22 Correct 158 ms 26000 KB Output is correct
23 Correct 157 ms 25932 KB Output is correct
24 Correct 159 ms 25972 KB Output is correct
25 Correct 77 ms 16012 KB Output is correct
26 Correct 65 ms 16060 KB Output is correct
27 Correct 195 ms 26008 KB Output is correct
28 Correct 152 ms 25960 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 7 ms 1972 KB Output is correct
37 Correct 158 ms 25996 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 7 ms 1956 KB Output is correct
41 Correct 149 ms 25992 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 3 ms 1492 KB Output is correct
45 Correct 77 ms 16152 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 46 ms 7692 KB Output is correct
50 Correct 194 ms 25924 KB Output is correct
51 Correct 153 ms 25936 KB Output is correct
52 Correct 180 ms 25932 KB Output is correct
53 Correct 67 ms 16012 KB Output is correct
54 Correct 61 ms 16020 KB Output is correct
55 Correct 151 ms 25912 KB Output is correct
56 Correct 172 ms 25912 KB Output is correct
57 Correct 66 ms 15996 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 3 ms 1492 KB Output is correct
61 Correct 71 ms 16136 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 0 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 39 ms 7756 KB Output is correct
66 Correct 67 ms 16012 KB Output is correct
67 Correct 68 ms 16076 KB Output is correct
68 Correct 65 ms 16012 KB Output is correct
69 Correct 65 ms 16076 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 7 ms 2008 KB Output is correct
7 Correct 159 ms 26000 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1972 KB Output is correct
13 Correct 175 ms 26012 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 1492 KB Output is correct
17 Correct 75 ms 16136 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 7744 KB Output is correct
21 Correct 163 ms 25996 KB Output is correct
22 Correct 158 ms 26000 KB Output is correct
23 Correct 157 ms 25932 KB Output is correct
24 Correct 159 ms 25972 KB Output is correct
25 Correct 77 ms 16012 KB Output is correct
26 Correct 65 ms 16060 KB Output is correct
27 Correct 195 ms 26008 KB Output is correct
28 Correct 152 ms 25960 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 7 ms 1972 KB Output is correct
37 Correct 158 ms 25996 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 7 ms 1956 KB Output is correct
41 Correct 149 ms 25992 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 3 ms 1492 KB Output is correct
45 Correct 77 ms 16152 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 46 ms 7692 KB Output is correct
50 Correct 194 ms 25924 KB Output is correct
51 Correct 153 ms 25936 KB Output is correct
52 Correct 180 ms 25932 KB Output is correct
53 Correct 67 ms 16012 KB Output is correct
54 Correct 61 ms 16020 KB Output is correct
55 Correct 151 ms 25912 KB Output is correct
56 Correct 172 ms 25912 KB Output is correct
57 Correct 66 ms 15996 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 39 ms 7688 KB Output is correct
62 Correct 155 ms 25944 KB Output is correct
63 Correct 159 ms 26008 KB Output is correct
64 Correct 167 ms 25968 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 51 ms 7688 KB Output is correct
67 Correct 159 ms 25996 KB Output is correct
68 Correct 159 ms 26008 KB Output is correct
69 Correct 178 ms 25996 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 340 KB Output is correct
72 Correct 0 ms 340 KB Output is correct
73 Correct 40 ms 7672 KB Output is correct
74 Correct 166 ms 26008 KB Output is correct
75 Correct 158 ms 25944 KB Output is correct
76 Correct 153 ms 25908 KB Output is correct
77 Correct 176 ms 25912 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 0 ms 340 KB Output is correct
80 Correct 3 ms 1492 KB Output is correct
81 Correct 71 ms 16136 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 0 ms 340 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 39 ms 7756 KB Output is correct
86 Correct 67 ms 16012 KB Output is correct
87 Correct 68 ms 16076 KB Output is correct
88 Correct 65 ms 16012 KB Output is correct
89 Correct 65 ms 16076 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 0 ms 340 KB Output is correct
92 Correct 3 ms 1492 KB Output is correct
93 Correct 69 ms 16136 KB Output is correct
94 Incorrect 0 ms 212 KB Answer gives possible 1 while actual possible 0
95 Halted 0 ms 0 KB -