#include "supertrees.h"
#include <vector>
#include <bits/stdc++.h>
using namespace std;
int sz[1001],par[1001],vis[1001];
int find(int a){
if(a==par[a]) return a;
int x=find(par[a]);
par[a]=x;
return x;
}
void join(int x,int y){
x=find(x);
y=find(y);
if(x==y) return;
if(sz[x]<sz[y]) swap(x,y);
else if(sz[x]==sz[y] && x>y) swap(x,y);
sz[x]+=sz[y];
par[y]=x;
}
vector<pair<int,int>> node[4];
vector<int> v[1001],x,y;
int construct(vector<vector<int>> p) {
int n = p.size();
for(int i=0;i<n;i++){
sz[i]=1;
par[i]=i;
for(int j=0;j<n;j++){
node[p[i][j]].push_back({i,j});
}
}
vector<vector<int>> answer(n,vector<int> (n,0));
for(pair<int,int>P:node[1]) join(P.first,P.second);
for(int i=0;i<n;i++){
v[find(i)].push_back(i);
}
for(int i=0;i<n;i++){
if(v[i].size()==0) continue;
for(int j=1;j<v[i].size();j++){
vis[v[i][j]]=1;
answer[v[i][0]][v[i][j]]=answer[v[i][j]][v[i][0]]=1;
}
v[i].clear();
}
for(pair<int,int>P:node[2]) join(P.first,P.second);
for(int i=0;i<n;i++){
if(!vis[i]) v[find(i)].push_back(i);
}
for(int i=0;i<n;i++){
if(v[i].size()<2) continue;
if(v[i].size()==2) return 0;
answer[v[i][0]][v[i].back()]=answer[v[i].back()][v[i][0]]=1;
for(int j=1;j<v[i].size();j++){
answer[v[i][j-1]][v[i][j]]=answer[v[i][j]][v[i][j-1]]=1;
}
}
if(node[3].size()!=0) return 0;
for(pair<int,int>P:node[0])
if(find(P.first)==find(P.second)) return 0;
build(answer);
return 1;
}
Compilation message
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:39:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
39 | for(int j=1;j<v[i].size();j++){
| ~^~~~~~~~~~~~
supertrees.cpp:53:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
53 | for(int j=1;j<v[i].size();j++){
| ~^~~~~~~~~~~~
# |
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 |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
8 ms |
1620 KB |
Output is correct |
7 |
Correct |
125 ms |
32132 KB |
Output is correct |
# |
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 |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
8 ms |
1620 KB |
Output is correct |
7 |
Correct |
125 ms |
32132 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
460 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
6 ms |
1720 KB |
Output is correct |
13 |
Correct |
121 ms |
31928 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
3 ms |
1240 KB |
Output is correct |
17 |
Correct |
76 ms |
22384 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
31 ms |
8184 KB |
Output is correct |
21 |
Correct |
153 ms |
31832 KB |
Output is correct |
22 |
Correct |
129 ms |
31872 KB |
Output is correct |
23 |
Correct |
125 ms |
31896 KB |
Output is correct |
24 |
Correct |
131 ms |
31920 KB |
Output is correct |
25 |
Correct |
61 ms |
21980 KB |
Output is correct |
26 |
Correct |
70 ms |
22016 KB |
Output is correct |
27 |
Correct |
172 ms |
31988 KB |
Output is correct |
28 |
Correct |
137 ms |
31928 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
468 KB |
Output is correct |
3 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
5 ms |
1748 KB |
Output is correct |
9 |
Correct |
170 ms |
31920 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
5 ms |
1592 KB |
Output is correct |
13 |
Correct |
120 ms |
31868 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
3 ms |
1372 KB |
Output is correct |
17 |
Correct |
69 ms |
22108 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 |
34 ms |
8192 KB |
Output is correct |
22 |
Correct |
148 ms |
32724 KB |
Output is correct |
23 |
Correct |
126 ms |
32264 KB |
Output is correct |
24 |
Correct |
171 ms |
32020 KB |
Output is correct |
25 |
Correct |
68 ms |
22140 KB |
Output is correct |
26 |
Correct |
59 ms |
21936 KB |
Output is correct |
27 |
Correct |
119 ms |
31876 KB |
Output is correct |
28 |
Correct |
148 ms |
31980 KB |
Output is correct |
29 |
Correct |
57 ms |
22016 KB |
Output is correct |
# |
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 |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
39 ms |
8384 KB |
Output is correct |
5 |
Correct |
117 ms |
32416 KB |
Output is correct |
6 |
Correct |
131 ms |
31984 KB |
Output is correct |
7 |
Correct |
123 ms |
31864 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
31 ms |
8384 KB |
Output is correct |
10 |
Correct |
124 ms |
32464 KB |
Output is correct |
11 |
Correct |
125 ms |
31868 KB |
Output is correct |
12 |
Correct |
139 ms |
31984 KB |
Output is correct |
13 |
Correct |
0 ms |
464 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
464 KB |
Output is correct |
16 |
Correct |
30 ms |
8384 KB |
Output is correct |
17 |
Correct |
115 ms |
31952 KB |
Output is correct |
18 |
Correct |
163 ms |
32400 KB |
Output is correct |
19 |
Correct |
116 ms |
31932 KB |
Output is correct |
20 |
Correct |
118 ms |
32004 KB |
Output is correct |
# |
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 |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
8 ms |
1620 KB |
Output is correct |
7 |
Correct |
125 ms |
32132 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
460 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
6 ms |
1720 KB |
Output is correct |
13 |
Correct |
121 ms |
31928 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
3 ms |
1240 KB |
Output is correct |
17 |
Correct |
76 ms |
22384 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
31 ms |
8184 KB |
Output is correct |
21 |
Correct |
153 ms |
31832 KB |
Output is correct |
22 |
Correct |
129 ms |
31872 KB |
Output is correct |
23 |
Correct |
125 ms |
31896 KB |
Output is correct |
24 |
Correct |
131 ms |
31920 KB |
Output is correct |
25 |
Correct |
61 ms |
21980 KB |
Output is correct |
26 |
Correct |
70 ms |
22016 KB |
Output is correct |
27 |
Correct |
172 ms |
31988 KB |
Output is correct |
28 |
Correct |
137 ms |
31928 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
468 KB |
Output is correct |
31 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
5 ms |
1748 KB |
Output is correct |
37 |
Correct |
170 ms |
31920 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
1 ms |
348 KB |
Output is correct |
40 |
Correct |
5 ms |
1592 KB |
Output is correct |
41 |
Correct |
120 ms |
31868 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
1 ms |
348 KB |
Output is correct |
44 |
Correct |
3 ms |
1372 KB |
Output is correct |
45 |
Correct |
69 ms |
22108 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 |
34 ms |
8192 KB |
Output is correct |
50 |
Correct |
148 ms |
32724 KB |
Output is correct |
51 |
Correct |
126 ms |
32264 KB |
Output is correct |
52 |
Correct |
171 ms |
32020 KB |
Output is correct |
53 |
Correct |
68 ms |
22140 KB |
Output is correct |
54 |
Correct |
59 ms |
21936 KB |
Output is correct |
55 |
Correct |
119 ms |
31876 KB |
Output is correct |
56 |
Correct |
148 ms |
31980 KB |
Output is correct |
57 |
Correct |
57 ms |
22016 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 |
1372 KB |
Output is correct |
61 |
Correct |
70 ms |
23408 KB |
Output is correct |
62 |
Correct |
0 ms |
348 KB |
Output is correct |
63 |
Correct |
0 ms |
412 KB |
Output is correct |
64 |
Correct |
0 ms |
348 KB |
Output is correct |
65 |
Correct |
37 ms |
8272 KB |
Output is correct |
66 |
Correct |
60 ms |
22064 KB |
Output is correct |
67 |
Correct |
71 ms |
23260 KB |
Output is correct |
68 |
Correct |
59 ms |
21960 KB |
Output is correct |
69 |
Correct |
59 ms |
21956 KB |
Output is correct |
# |
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 |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
8 ms |
1620 KB |
Output is correct |
7 |
Correct |
125 ms |
32132 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
460 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
6 ms |
1720 KB |
Output is correct |
13 |
Correct |
121 ms |
31928 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
3 ms |
1240 KB |
Output is correct |
17 |
Correct |
76 ms |
22384 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
31 ms |
8184 KB |
Output is correct |
21 |
Correct |
153 ms |
31832 KB |
Output is correct |
22 |
Correct |
129 ms |
31872 KB |
Output is correct |
23 |
Correct |
125 ms |
31896 KB |
Output is correct |
24 |
Correct |
131 ms |
31920 KB |
Output is correct |
25 |
Correct |
61 ms |
21980 KB |
Output is correct |
26 |
Correct |
70 ms |
22016 KB |
Output is correct |
27 |
Correct |
172 ms |
31988 KB |
Output is correct |
28 |
Correct |
137 ms |
31928 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
468 KB |
Output is correct |
31 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
5 ms |
1748 KB |
Output is correct |
37 |
Correct |
170 ms |
31920 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
1 ms |
348 KB |
Output is correct |
40 |
Correct |
5 ms |
1592 KB |
Output is correct |
41 |
Correct |
120 ms |
31868 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
1 ms |
348 KB |
Output is correct |
44 |
Correct |
3 ms |
1372 KB |
Output is correct |
45 |
Correct |
69 ms |
22108 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 |
34 ms |
8192 KB |
Output is correct |
50 |
Correct |
148 ms |
32724 KB |
Output is correct |
51 |
Correct |
126 ms |
32264 KB |
Output is correct |
52 |
Correct |
171 ms |
32020 KB |
Output is correct |
53 |
Correct |
68 ms |
22140 KB |
Output is correct |
54 |
Correct |
59 ms |
21936 KB |
Output is correct |
55 |
Correct |
119 ms |
31876 KB |
Output is correct |
56 |
Correct |
148 ms |
31980 KB |
Output is correct |
57 |
Correct |
57 ms |
22016 KB |
Output is correct |
58 |
Correct |
0 ms |
344 KB |
Output is correct |
59 |
Correct |
0 ms |
348 KB |
Output is correct |
60 |
Correct |
1 ms |
348 KB |
Output is correct |
61 |
Correct |
39 ms |
8384 KB |
Output is correct |
62 |
Correct |
117 ms |
32416 KB |
Output is correct |
63 |
Correct |
131 ms |
31984 KB |
Output is correct |
64 |
Correct |
123 ms |
31864 KB |
Output is correct |
65 |
Correct |
0 ms |
348 KB |
Output is correct |
66 |
Correct |
31 ms |
8384 KB |
Output is correct |
67 |
Correct |
124 ms |
32464 KB |
Output is correct |
68 |
Correct |
125 ms |
31868 KB |
Output is correct |
69 |
Correct |
139 ms |
31984 KB |
Output is correct |
70 |
Correct |
0 ms |
464 KB |
Output is correct |
71 |
Correct |
0 ms |
348 KB |
Output is correct |
72 |
Correct |
1 ms |
464 KB |
Output is correct |
73 |
Correct |
30 ms |
8384 KB |
Output is correct |
74 |
Correct |
115 ms |
31952 KB |
Output is correct |
75 |
Correct |
163 ms |
32400 KB |
Output is correct |
76 |
Correct |
116 ms |
31932 KB |
Output is correct |
77 |
Correct |
118 ms |
32004 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 |
1372 KB |
Output is correct |
81 |
Correct |
70 ms |
23408 KB |
Output is correct |
82 |
Correct |
0 ms |
348 KB |
Output is correct |
83 |
Correct |
0 ms |
412 KB |
Output is correct |
84 |
Correct |
0 ms |
348 KB |
Output is correct |
85 |
Correct |
37 ms |
8272 KB |
Output is correct |
86 |
Correct |
60 ms |
22064 KB |
Output is correct |
87 |
Correct |
71 ms |
23260 KB |
Output is correct |
88 |
Correct |
59 ms |
21960 KB |
Output is correct |
89 |
Correct |
59 ms |
21956 KB |
Output is correct |
90 |
Correct |
0 ms |
348 KB |
Output is correct |
91 |
Correct |
0 ms |
344 KB |
Output is correct |
92 |
Correct |
3 ms |
1372 KB |
Output is correct |
93 |
Correct |
68 ms |
22084 KB |
Output is correct |
94 |
Correct |
0 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 |
17 ms |
5896 KB |
Output is correct |
98 |
Correct |
67 ms |
22128 KB |
Output is correct |
99 |
Correct |
60 ms |
22832 KB |
Output is correct |
100 |
Correct |
53 ms |
21956 KB |
Output is correct |
101 |
Correct |
59 ms |
22172 KB |
Output is correct |
102 |
Correct |
59 ms |
21900 KB |
Output is correct |
103 |
Correct |
61 ms |
22144 KB |
Output is correct |
104 |
Correct |
62 ms |
21932 KB |
Output is correct |
105 |
Correct |
67 ms |
21932 KB |
Output is correct |