#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
#define ll long long
#define pii pair<int,int>
#define ff first
#define ss second
#define sz(a) (int)a.size()
#define pb push_back
const int maxn=1e3+5;
// head
int n;
int d[maxn];
int b[maxn];
vector<vector<int>> p;
vector<vector<int>> ans;
int ata(int x){
if(x==d[x]) return x;
return d[x]=ata(d[x]);
}
int ata2(int x){
if(x==b[x]) return x;
return b[x]=ata2(b[x]);
}
int f(vector<int>v){
if(sz(v)==0) return 1;
for(int i = 0;i < sz(v);i++) b[v[i]]=v[i];
for(int i = 0;i < sz(v);i++){
for(int j = 0;j < i;j++){
if(p[v[i]][v[j]]==1){
int x=ata2(v[i]),y=ata2(v[j]);
if(x != y) b[y]=x;
}
}
}
vector<int> br[n+1];
set<int> s;
for(int i = 0;i < sz(v);i++){
ata2(v[i]);
br[b[v[i]]].pb(v[i]);
s.insert(b[v[i]]);
}
for(int i = 0;i < n;i++){
for(int j = 0;j < sz(br[i]);j++){
for(int k = 0;k < j;k++){
if(p[br[i][j]][br[i][k]]==2) return 0;
}
if(j > 0) ans[br[i][j]][br[i][j-1]]=1,ans[br[i][j-1]][br[i][j]]=1;
}
}
if(sz(s)==2) return 0;
if(sz(s)==1) return 1;
int fi=-1,ls=-1;
for(auto i : s){
if(fi==-1) fi=i;
if(ls != -1) ans[i][ls]=1,ans[ls][i]=1;
ls=i;
}
ans[ls][fi]=1,ans[fi][ls]=1;
return 1;
}
int construct(vector<vector<int>> _p) {
p = _p;
n = p.size();
ans.resize(n);
for(int i = 0;i < n;i++){
d[i]=i;
ans[i].resize(n);
}
for(int i = 0;i < n;i++)
for(int j = 0;j < n;j++) if(p[i][j]==3) return 0;
for(int i = 0;i < n;i++){
for(int j = 0;j < i;j++){
if(p[i][j]>0){
int x=ata(i),y=ata(j);
if(x != y) d[y]=x;
}
}
}
vector<int>v[n+1];
for(int i = 0;i < n;i++){
ata(i);
v[d[i]].pb(i);
}
for(int i = 0;i < n;i++){
for(int j = 0;j < sz(v[i]);j++){
for(int k = 0;k < j;k++){
if(p[v[i][j]][v[i][k]] == 0) return 0;
}
}
}
for(int i = 0;i < n;i++){
int jog = f(v[i]);
if(jog==0) return 0;
}
build(ans);
return 1;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
256 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
488 KB |
Output is correct |
6 |
Correct |
11 ms |
1408 KB |
Output is correct |
7 |
Correct |
268 ms |
26176 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
256 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
488 KB |
Output is correct |
6 |
Correct |
11 ms |
1408 KB |
Output is correct |
7 |
Correct |
268 ms |
26176 KB |
Output is correct |
8 |
Correct |
1 ms |
256 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
1 ms |
256 KB |
Output is correct |
11 |
Correct |
0 ms |
256 KB |
Output is correct |
12 |
Correct |
13 ms |
1408 KB |
Output is correct |
13 |
Correct |
253 ms |
26104 KB |
Output is correct |
14 |
Correct |
1 ms |
512 KB |
Output is correct |
15 |
Correct |
1 ms |
256 KB |
Output is correct |
16 |
Correct |
5 ms |
1024 KB |
Output is correct |
17 |
Correct |
135 ms |
16120 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
256 KB |
Output is correct |
20 |
Correct |
61 ms |
6776 KB |
Output is correct |
21 |
Correct |
257 ms |
26104 KB |
Output is correct |
22 |
Correct |
247 ms |
26104 KB |
Output is correct |
23 |
Correct |
267 ms |
26104 KB |
Output is correct |
24 |
Correct |
249 ms |
26232 KB |
Output is correct |
25 |
Correct |
100 ms |
16120 KB |
Output is correct |
26 |
Correct |
101 ms |
16120 KB |
Output is correct |
27 |
Correct |
264 ms |
26104 KB |
Output is correct |
28 |
Correct |
264 ms |
26136 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
288 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
256 KB |
Output is correct |
5 |
Correct |
0 ms |
256 KB |
Output is correct |
6 |
Correct |
1 ms |
256 KB |
Output is correct |
7 |
Correct |
1 ms |
256 KB |
Output is correct |
8 |
Correct |
11 ms |
1408 KB |
Output is correct |
9 |
Correct |
256 ms |
26136 KB |
Output is correct |
10 |
Correct |
1 ms |
256 KB |
Output is correct |
11 |
Correct |
1 ms |
256 KB |
Output is correct |
12 |
Correct |
11 ms |
1408 KB |
Output is correct |
13 |
Correct |
285 ms |
26104 KB |
Output is correct |
14 |
Correct |
0 ms |
384 KB |
Output is correct |
15 |
Correct |
1 ms |
256 KB |
Output is correct |
16 |
Correct |
5 ms |
1024 KB |
Output is correct |
17 |
Correct |
141 ms |
16120 KB |
Output is correct |
18 |
Correct |
1 ms |
256 KB |
Output is correct |
19 |
Correct |
0 ms |
256 KB |
Output is correct |
20 |
Correct |
1 ms |
256 KB |
Output is correct |
21 |
Correct |
69 ms |
6776 KB |
Output is correct |
22 |
Correct |
262 ms |
26104 KB |
Output is correct |
23 |
Correct |
240 ms |
26200 KB |
Output is correct |
24 |
Correct |
267 ms |
26104 KB |
Output is correct |
25 |
Correct |
104 ms |
16248 KB |
Output is correct |
26 |
Correct |
108 ms |
16248 KB |
Output is correct |
27 |
Correct |
241 ms |
26236 KB |
Output is correct |
28 |
Correct |
268 ms |
26232 KB |
Output is correct |
29 |
Correct |
102 ms |
16352 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
256 KB |
Output is correct |
4 |
Correct |
68 ms |
6904 KB |
Output is correct |
5 |
Correct |
262 ms |
26104 KB |
Output is correct |
6 |
Correct |
274 ms |
26104 KB |
Output is correct |
7 |
Correct |
265 ms |
26072 KB |
Output is correct |
8 |
Correct |
1 ms |
256 KB |
Output is correct |
9 |
Correct |
63 ms |
6872 KB |
Output is correct |
10 |
Correct |
271 ms |
26200 KB |
Output is correct |
11 |
Correct |
244 ms |
26104 KB |
Output is correct |
12 |
Correct |
266 ms |
26216 KB |
Output is correct |
13 |
Correct |
1 ms |
384 KB |
Output is correct |
14 |
Correct |
1 ms |
256 KB |
Output is correct |
15 |
Correct |
1 ms |
256 KB |
Output is correct |
16 |
Correct |
62 ms |
6776 KB |
Output is correct |
17 |
Correct |
243 ms |
26104 KB |
Output is correct |
18 |
Correct |
243 ms |
26104 KB |
Output is correct |
19 |
Correct |
244 ms |
26128 KB |
Output is correct |
20 |
Correct |
244 ms |
26104 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
256 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
488 KB |
Output is correct |
6 |
Correct |
11 ms |
1408 KB |
Output is correct |
7 |
Correct |
268 ms |
26176 KB |
Output is correct |
8 |
Correct |
1 ms |
256 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
1 ms |
256 KB |
Output is correct |
11 |
Correct |
0 ms |
256 KB |
Output is correct |
12 |
Correct |
13 ms |
1408 KB |
Output is correct |
13 |
Correct |
253 ms |
26104 KB |
Output is correct |
14 |
Correct |
1 ms |
512 KB |
Output is correct |
15 |
Correct |
1 ms |
256 KB |
Output is correct |
16 |
Correct |
5 ms |
1024 KB |
Output is correct |
17 |
Correct |
135 ms |
16120 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
256 KB |
Output is correct |
20 |
Correct |
61 ms |
6776 KB |
Output is correct |
21 |
Correct |
257 ms |
26104 KB |
Output is correct |
22 |
Correct |
247 ms |
26104 KB |
Output is correct |
23 |
Correct |
267 ms |
26104 KB |
Output is correct |
24 |
Correct |
249 ms |
26232 KB |
Output is correct |
25 |
Correct |
100 ms |
16120 KB |
Output is correct |
26 |
Correct |
101 ms |
16120 KB |
Output is correct |
27 |
Correct |
264 ms |
26104 KB |
Output is correct |
28 |
Correct |
264 ms |
26136 KB |
Output is correct |
29 |
Correct |
1 ms |
288 KB |
Output is correct |
30 |
Correct |
1 ms |
256 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
256 KB |
Output is correct |
33 |
Correct |
0 ms |
256 KB |
Output is correct |
34 |
Correct |
1 ms |
256 KB |
Output is correct |
35 |
Correct |
1 ms |
256 KB |
Output is correct |
36 |
Correct |
11 ms |
1408 KB |
Output is correct |
37 |
Correct |
256 ms |
26136 KB |
Output is correct |
38 |
Correct |
1 ms |
256 KB |
Output is correct |
39 |
Correct |
1 ms |
256 KB |
Output is correct |
40 |
Correct |
11 ms |
1408 KB |
Output is correct |
41 |
Correct |
285 ms |
26104 KB |
Output is correct |
42 |
Correct |
0 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
256 KB |
Output is correct |
44 |
Correct |
5 ms |
1024 KB |
Output is correct |
45 |
Correct |
141 ms |
16120 KB |
Output is correct |
46 |
Correct |
1 ms |
256 KB |
Output is correct |
47 |
Correct |
0 ms |
256 KB |
Output is correct |
48 |
Correct |
1 ms |
256 KB |
Output is correct |
49 |
Correct |
69 ms |
6776 KB |
Output is correct |
50 |
Correct |
262 ms |
26104 KB |
Output is correct |
51 |
Correct |
240 ms |
26200 KB |
Output is correct |
52 |
Correct |
267 ms |
26104 KB |
Output is correct |
53 |
Correct |
104 ms |
16248 KB |
Output is correct |
54 |
Correct |
108 ms |
16248 KB |
Output is correct |
55 |
Correct |
241 ms |
26236 KB |
Output is correct |
56 |
Correct |
268 ms |
26232 KB |
Output is correct |
57 |
Correct |
102 ms |
16352 KB |
Output is correct |
58 |
Correct |
1 ms |
256 KB |
Output is correct |
59 |
Correct |
1 ms |
256 KB |
Output is correct |
60 |
Correct |
5 ms |
1024 KB |
Output is correct |
61 |
Correct |
114 ms |
16120 KB |
Output is correct |
62 |
Correct |
1 ms |
256 KB |
Output is correct |
63 |
Correct |
1 ms |
256 KB |
Output is correct |
64 |
Correct |
1 ms |
256 KB |
Output is correct |
65 |
Correct |
61 ms |
7004 KB |
Output is correct |
66 |
Correct |
105 ms |
16120 KB |
Output is correct |
67 |
Correct |
103 ms |
16120 KB |
Output is correct |
68 |
Correct |
98 ms |
16120 KB |
Output is correct |
69 |
Correct |
105 ms |
16376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
256 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
488 KB |
Output is correct |
6 |
Correct |
11 ms |
1408 KB |
Output is correct |
7 |
Correct |
268 ms |
26176 KB |
Output is correct |
8 |
Correct |
1 ms |
256 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
1 ms |
256 KB |
Output is correct |
11 |
Correct |
0 ms |
256 KB |
Output is correct |
12 |
Correct |
13 ms |
1408 KB |
Output is correct |
13 |
Correct |
253 ms |
26104 KB |
Output is correct |
14 |
Correct |
1 ms |
512 KB |
Output is correct |
15 |
Correct |
1 ms |
256 KB |
Output is correct |
16 |
Correct |
5 ms |
1024 KB |
Output is correct |
17 |
Correct |
135 ms |
16120 KB |
Output is correct |
18 |
Correct |
1 ms |
384 KB |
Output is correct |
19 |
Correct |
1 ms |
256 KB |
Output is correct |
20 |
Correct |
61 ms |
6776 KB |
Output is correct |
21 |
Correct |
257 ms |
26104 KB |
Output is correct |
22 |
Correct |
247 ms |
26104 KB |
Output is correct |
23 |
Correct |
267 ms |
26104 KB |
Output is correct |
24 |
Correct |
249 ms |
26232 KB |
Output is correct |
25 |
Correct |
100 ms |
16120 KB |
Output is correct |
26 |
Correct |
101 ms |
16120 KB |
Output is correct |
27 |
Correct |
264 ms |
26104 KB |
Output is correct |
28 |
Correct |
264 ms |
26136 KB |
Output is correct |
29 |
Correct |
1 ms |
288 KB |
Output is correct |
30 |
Correct |
1 ms |
256 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
1 ms |
256 KB |
Output is correct |
33 |
Correct |
0 ms |
256 KB |
Output is correct |
34 |
Correct |
1 ms |
256 KB |
Output is correct |
35 |
Correct |
1 ms |
256 KB |
Output is correct |
36 |
Correct |
11 ms |
1408 KB |
Output is correct |
37 |
Correct |
256 ms |
26136 KB |
Output is correct |
38 |
Correct |
1 ms |
256 KB |
Output is correct |
39 |
Correct |
1 ms |
256 KB |
Output is correct |
40 |
Correct |
11 ms |
1408 KB |
Output is correct |
41 |
Correct |
285 ms |
26104 KB |
Output is correct |
42 |
Correct |
0 ms |
384 KB |
Output is correct |
43 |
Correct |
1 ms |
256 KB |
Output is correct |
44 |
Correct |
5 ms |
1024 KB |
Output is correct |
45 |
Correct |
141 ms |
16120 KB |
Output is correct |
46 |
Correct |
1 ms |
256 KB |
Output is correct |
47 |
Correct |
0 ms |
256 KB |
Output is correct |
48 |
Correct |
1 ms |
256 KB |
Output is correct |
49 |
Correct |
69 ms |
6776 KB |
Output is correct |
50 |
Correct |
262 ms |
26104 KB |
Output is correct |
51 |
Correct |
240 ms |
26200 KB |
Output is correct |
52 |
Correct |
267 ms |
26104 KB |
Output is correct |
53 |
Correct |
104 ms |
16248 KB |
Output is correct |
54 |
Correct |
108 ms |
16248 KB |
Output is correct |
55 |
Correct |
241 ms |
26236 KB |
Output is correct |
56 |
Correct |
268 ms |
26232 KB |
Output is correct |
57 |
Correct |
102 ms |
16352 KB |
Output is correct |
58 |
Correct |
1 ms |
256 KB |
Output is correct |
59 |
Correct |
1 ms |
256 KB |
Output is correct |
60 |
Correct |
1 ms |
256 KB |
Output is correct |
61 |
Correct |
68 ms |
6904 KB |
Output is correct |
62 |
Correct |
262 ms |
26104 KB |
Output is correct |
63 |
Correct |
274 ms |
26104 KB |
Output is correct |
64 |
Correct |
265 ms |
26072 KB |
Output is correct |
65 |
Correct |
1 ms |
256 KB |
Output is correct |
66 |
Correct |
63 ms |
6872 KB |
Output is correct |
67 |
Correct |
271 ms |
26200 KB |
Output is correct |
68 |
Correct |
244 ms |
26104 KB |
Output is correct |
69 |
Correct |
266 ms |
26216 KB |
Output is correct |
70 |
Correct |
1 ms |
384 KB |
Output is correct |
71 |
Correct |
1 ms |
256 KB |
Output is correct |
72 |
Correct |
1 ms |
256 KB |
Output is correct |
73 |
Correct |
62 ms |
6776 KB |
Output is correct |
74 |
Correct |
243 ms |
26104 KB |
Output is correct |
75 |
Correct |
243 ms |
26104 KB |
Output is correct |
76 |
Correct |
244 ms |
26128 KB |
Output is correct |
77 |
Correct |
244 ms |
26104 KB |
Output is correct |
78 |
Correct |
1 ms |
256 KB |
Output is correct |
79 |
Correct |
1 ms |
256 KB |
Output is correct |
80 |
Correct |
5 ms |
1024 KB |
Output is correct |
81 |
Correct |
114 ms |
16120 KB |
Output is correct |
82 |
Correct |
1 ms |
256 KB |
Output is correct |
83 |
Correct |
1 ms |
256 KB |
Output is correct |
84 |
Correct |
1 ms |
256 KB |
Output is correct |
85 |
Correct |
61 ms |
7004 KB |
Output is correct |
86 |
Correct |
105 ms |
16120 KB |
Output is correct |
87 |
Correct |
103 ms |
16120 KB |
Output is correct |
88 |
Correct |
98 ms |
16120 KB |
Output is correct |
89 |
Correct |
105 ms |
16376 KB |
Output is correct |
90 |
Correct |
1 ms |
256 KB |
Output is correct |
91 |
Correct |
1 ms |
256 KB |
Output is correct |
92 |
Correct |
5 ms |
1024 KB |
Output is correct |
93 |
Correct |
109 ms |
16120 KB |
Output is correct |
94 |
Correct |
1 ms |
256 KB |
Output is correct |
95 |
Correct |
1 ms |
256 KB |
Output is correct |
96 |
Correct |
1 ms |
256 KB |
Output is correct |
97 |
Correct |
25 ms |
4344 KB |
Output is correct |
98 |
Correct |
98 ms |
16120 KB |
Output is correct |
99 |
Correct |
98 ms |
16120 KB |
Output is correct |
100 |
Correct |
137 ms |
16120 KB |
Output is correct |
101 |
Correct |
101 ms |
16120 KB |
Output is correct |
102 |
Correct |
115 ms |
16120 KB |
Output is correct |
103 |
Correct |
105 ms |
16120 KB |
Output is correct |
104 |
Correct |
114 ms |
16120 KB |
Output is correct |
105 |
Correct |
109 ms |
16096 KB |
Output is correct |