#include "supertrees.h"
#include "bits/stdc++.h"
using namespace std;
#define ll long long
#define forn(i,n) for(int i=0;i<n;i++)
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(),v.rend()
#define pb push_back
#define sz(a) (int)a.size()
#define fastio ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
const int N = 1001;
vector<int> adj[N];
bool vis[N];
vector<int> component;
int par[N];
int get(int a){
while(par[a]!=a)a=par[a];
return a;
}
void uni(int a,int b){
a = get(a);
b = get(b);
if(a==b)return;
par[b] = a;
}
void dfs(int u)
{
vis[u] = true;
component.pb(u);
for(auto x : adj[u]){
if(!vis[x])dfs(x);
}
}
int construct(vector<vector<int>> p)
{
int n = sz(p);
for(int i = 0;i < n;i++)adj[i].clear();
for(int i =0;i < n;i++)vis[i] = false;
vector<vector<int>> ans;
ans.resize(n);
for(int i=0;i < n;i++)
par[i]=i;
for(int i =0;i < n;i++)ans[i].resize(n);
forn(i,n)forn(j,n)ans[i][j]=0;
bool two = false;
bool one = false;
for(int i = 0;i < n;i++)
{
for(int j = 0;j < n;j++)
{
if(p[i][j] == 1)one = true;
if(p[i][j]){
uni(i,j);
adj[i].pb(j);
}
}
}
for(int i = 0;i < n;i++)
{
for(int j =0;j < n;j++)
{
if(get(i)==get(j) && !p[i][j])return 0;
}
}
for(int i = 0;i < n;i++)
{
if(!vis[i]){
component.clear();
bool two_cur = false;
dfs(i);
for(int j = 1;j < sz(component);j++)
{
ans[component[j]][component[j-1]] = ans[component[j-1]][component[j]] = 1;
if(p[component[j]][component[j-1]] == 2)two_cur = true;
}
if(sz(component) == 2 && two_cur)return 0;
if(two_cur && sz(component) > 1)ans[component.back()][component[0]] = ans[component[0]][component.back()] = 1;
}
}
build(ans);
return 1;
}
Compilation message
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:51:7: warning: unused variable 'two' [-Wunused-variable]
51 | bool two = false;
| ^~~
supertrees.cpp:52:7: warning: variable 'one' set but not used [-Wunused-but-set-variable]
52 | bool one = false;
| ^~~
# |
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 |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
11 ms |
1388 KB |
Output is correct |
7 |
Correct |
257 ms |
26220 KB |
Output is correct |
# |
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 |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
11 ms |
1388 KB |
Output is correct |
7 |
Correct |
257 ms |
26220 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
10 ms |
1260 KB |
Output is correct |
13 |
Correct |
260 ms |
22252 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
6 ms |
876 KB |
Output is correct |
17 |
Correct |
126 ms |
14828 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
80 ms |
5996 KB |
Output is correct |
21 |
Correct |
263 ms |
22764 KB |
Output is correct |
22 |
Correct |
245 ms |
22220 KB |
Output is correct |
23 |
Correct |
264 ms |
24220 KB |
Output is correct |
24 |
Correct |
245 ms |
22124 KB |
Output is correct |
25 |
Correct |
117 ms |
12796 KB |
Output is correct |
26 |
Correct |
103 ms |
12268 KB |
Output is correct |
27 |
Correct |
287 ms |
25196 KB |
Output is correct |
28 |
Correct |
247 ms |
22252 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
396 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
0 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 |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
10 ms |
1260 KB |
Output is correct |
9 |
Correct |
244 ms |
22252 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
11 ms |
1388 KB |
Output is correct |
13 |
Correct |
260 ms |
26220 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
384 KB |
Output is correct |
16 |
Correct |
6 ms |
876 KB |
Output is correct |
17 |
Correct |
124 ms |
14700 KB |
Output is correct |
18 |
Correct |
1 ms |
512 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
63 ms |
5888 KB |
Output is correct |
22 |
Correct |
271 ms |
22636 KB |
Output is correct |
23 |
Correct |
247 ms |
22508 KB |
Output is correct |
24 |
Correct |
290 ms |
25196 KB |
Output is correct |
25 |
Correct |
112 ms |
12268 KB |
Output is correct |
26 |
Correct |
109 ms |
12652 KB |
Output is correct |
27 |
Correct |
254 ms |
22272 KB |
Output is correct |
28 |
Correct |
260 ms |
24300 KB |
Output is correct |
29 |
Correct |
125 ms |
12524 KB |
Output is correct |
# |
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 |
64 ms |
5868 KB |
Output is correct |
5 |
Correct |
253 ms |
22636 KB |
Output is correct |
6 |
Correct |
246 ms |
22380 KB |
Output is correct |
7 |
Correct |
267 ms |
24300 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
63 ms |
5868 KB |
Output is correct |
10 |
Correct |
250 ms |
22732 KB |
Output is correct |
11 |
Correct |
250 ms |
22252 KB |
Output is correct |
12 |
Correct |
271 ms |
25212 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Incorrect |
1 ms |
364 KB |
Too many ways to get from 0 to 4, should be 1 found no less than 2 |
16 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
11 ms |
1388 KB |
Output is correct |
7 |
Correct |
257 ms |
26220 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
10 ms |
1260 KB |
Output is correct |
13 |
Correct |
260 ms |
22252 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
6 ms |
876 KB |
Output is correct |
17 |
Correct |
126 ms |
14828 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
80 ms |
5996 KB |
Output is correct |
21 |
Correct |
263 ms |
22764 KB |
Output is correct |
22 |
Correct |
245 ms |
22220 KB |
Output is correct |
23 |
Correct |
264 ms |
24220 KB |
Output is correct |
24 |
Correct |
245 ms |
22124 KB |
Output is correct |
25 |
Correct |
117 ms |
12796 KB |
Output is correct |
26 |
Correct |
103 ms |
12268 KB |
Output is correct |
27 |
Correct |
287 ms |
25196 KB |
Output is correct |
28 |
Correct |
247 ms |
22252 KB |
Output is correct |
29 |
Correct |
1 ms |
396 KB |
Output is correct |
30 |
Correct |
1 ms |
364 KB |
Output is correct |
31 |
Correct |
1 ms |
364 KB |
Output is correct |
32 |
Correct |
0 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 |
1 ms |
364 KB |
Output is correct |
36 |
Correct |
10 ms |
1260 KB |
Output is correct |
37 |
Correct |
244 ms |
22252 KB |
Output is correct |
38 |
Correct |
1 ms |
364 KB |
Output is correct |
39 |
Correct |
1 ms |
364 KB |
Output is correct |
40 |
Correct |
11 ms |
1388 KB |
Output is correct |
41 |
Correct |
260 ms |
26220 KB |
Output is correct |
42 |
Correct |
1 ms |
364 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
6 ms |
876 KB |
Output is correct |
45 |
Correct |
124 ms |
14700 KB |
Output is correct |
46 |
Correct |
1 ms |
512 KB |
Output is correct |
47 |
Correct |
1 ms |
364 KB |
Output is correct |
48 |
Correct |
1 ms |
364 KB |
Output is correct |
49 |
Correct |
63 ms |
5888 KB |
Output is correct |
50 |
Correct |
271 ms |
22636 KB |
Output is correct |
51 |
Correct |
247 ms |
22508 KB |
Output is correct |
52 |
Correct |
290 ms |
25196 KB |
Output is correct |
53 |
Correct |
112 ms |
12268 KB |
Output is correct |
54 |
Correct |
109 ms |
12652 KB |
Output is correct |
55 |
Correct |
254 ms |
22272 KB |
Output is correct |
56 |
Correct |
260 ms |
24300 KB |
Output is correct |
57 |
Correct |
125 ms |
12524 KB |
Output is correct |
58 |
Correct |
1 ms |
364 KB |
Output is correct |
59 |
Correct |
1 ms |
364 KB |
Output is correct |
60 |
Correct |
7 ms |
1004 KB |
Output is correct |
61 |
Correct |
124 ms |
16380 KB |
Output is correct |
62 |
Correct |
1 ms |
364 KB |
Output is correct |
63 |
Correct |
1 ms |
364 KB |
Output is correct |
64 |
Correct |
1 ms |
364 KB |
Output is correct |
65 |
Incorrect |
64 ms |
5928 KB |
Too many ways to get from 1 to 269, should be 1 found no less than 2 |
66 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
11 ms |
1388 KB |
Output is correct |
7 |
Correct |
257 ms |
26220 KB |
Output is correct |
8 |
Correct |
1 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
10 ms |
1260 KB |
Output is correct |
13 |
Correct |
260 ms |
22252 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
6 ms |
876 KB |
Output is correct |
17 |
Correct |
126 ms |
14828 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
80 ms |
5996 KB |
Output is correct |
21 |
Correct |
263 ms |
22764 KB |
Output is correct |
22 |
Correct |
245 ms |
22220 KB |
Output is correct |
23 |
Correct |
264 ms |
24220 KB |
Output is correct |
24 |
Correct |
245 ms |
22124 KB |
Output is correct |
25 |
Correct |
117 ms |
12796 KB |
Output is correct |
26 |
Correct |
103 ms |
12268 KB |
Output is correct |
27 |
Correct |
287 ms |
25196 KB |
Output is correct |
28 |
Correct |
247 ms |
22252 KB |
Output is correct |
29 |
Correct |
1 ms |
396 KB |
Output is correct |
30 |
Correct |
1 ms |
364 KB |
Output is correct |
31 |
Correct |
1 ms |
364 KB |
Output is correct |
32 |
Correct |
0 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 |
1 ms |
364 KB |
Output is correct |
36 |
Correct |
10 ms |
1260 KB |
Output is correct |
37 |
Correct |
244 ms |
22252 KB |
Output is correct |
38 |
Correct |
1 ms |
364 KB |
Output is correct |
39 |
Correct |
1 ms |
364 KB |
Output is correct |
40 |
Correct |
11 ms |
1388 KB |
Output is correct |
41 |
Correct |
260 ms |
26220 KB |
Output is correct |
42 |
Correct |
1 ms |
364 KB |
Output is correct |
43 |
Correct |
1 ms |
384 KB |
Output is correct |
44 |
Correct |
6 ms |
876 KB |
Output is correct |
45 |
Correct |
124 ms |
14700 KB |
Output is correct |
46 |
Correct |
1 ms |
512 KB |
Output is correct |
47 |
Correct |
1 ms |
364 KB |
Output is correct |
48 |
Correct |
1 ms |
364 KB |
Output is correct |
49 |
Correct |
63 ms |
5888 KB |
Output is correct |
50 |
Correct |
271 ms |
22636 KB |
Output is correct |
51 |
Correct |
247 ms |
22508 KB |
Output is correct |
52 |
Correct |
290 ms |
25196 KB |
Output is correct |
53 |
Correct |
112 ms |
12268 KB |
Output is correct |
54 |
Correct |
109 ms |
12652 KB |
Output is correct |
55 |
Correct |
254 ms |
22272 KB |
Output is correct |
56 |
Correct |
260 ms |
24300 KB |
Output is correct |
57 |
Correct |
125 ms |
12524 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 |
64 ms |
5868 KB |
Output is correct |
62 |
Correct |
253 ms |
22636 KB |
Output is correct |
63 |
Correct |
246 ms |
22380 KB |
Output is correct |
64 |
Correct |
267 ms |
24300 KB |
Output is correct |
65 |
Correct |
1 ms |
364 KB |
Output is correct |
66 |
Correct |
63 ms |
5868 KB |
Output is correct |
67 |
Correct |
250 ms |
22732 KB |
Output is correct |
68 |
Correct |
250 ms |
22252 KB |
Output is correct |
69 |
Correct |
271 ms |
25212 KB |
Output is correct |
70 |
Correct |
1 ms |
364 KB |
Output is correct |
71 |
Correct |
1 ms |
364 KB |
Output is correct |
72 |
Incorrect |
1 ms |
364 KB |
Too many ways to get from 0 to 4, should be 1 found no less than 2 |
73 |
Halted |
0 ms |
0 KB |
- |