#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
#define ll long long
#define endl "\n"
#define INF 1000000000
#define LINF 10000000000000000000LL
#define pb push_back
#define all(x) x.begin(), x.end()
#define len(s) (int)s.size()
#define test_case { int t; cin>>t; while(t--)solve(); }
#define single_case solve();
#define line cerr<<"----------"<<endl;
#define ios { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cerr.tie(NULL); }
#define mod 1000000007LL
const int N = 1005;
int parent[N], s[N];
int find_parent(int u)
{
while(parent[u]!=u)
{
parent[u] = parent[parent[u]];
u = parent[u];
}
return u;
}
void dsu(int u, int v)
{
u = find_parent(u);
v = find_parent(v);
if(u!=v)
{
if(s[u]<s[v]) swap(u, v);
s[u] += s[v];
parent[v] = u;
}
}
int construct(vector<vector<int> > p)
{
int n = len(p);
for(int i = 0;i<n;i++) parent[i] = i, s[i] = 1;
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<n;j++) if(p[i][j]==1) dsu(i, j);
vector<int> r;
vector<int> rr(n, 0);
vector<vector<int> > res(n, vector<int>(n, 0));
for(int i = 0;i<n;++i) {
int x = find_parent(i);
if(x==i) r.pb(i), rr[i] = 1;
else res[i][x] = res[x][i] = 1;
}
for(int i = 0;i<n;i++)
for(int j = 0;j<n;j++)
if(p[i][j]!=p[find_parent(i)][find_parent(j)]) return 0;
for(int i = 0;i<n;i++)
{
if(find_parent(i)==i&&rr[i])
{
vector<int> q;
for(int j = 0;j<n;j++) if(j!=i&&find_parent(j)==i) q.pb(j);
for(int x : q)
{
for(int y : q)
{
if(x!=y)
{
if(p[x][y]!=1) return 0;
}
}
}
}
}
for(int i = 0;i<n;i++) parent[i] = i, s[i] = 1;
for(int i = 0;i<n;++i)
for(int j = 0;j<n;j++)
if(rr[i]==1&&rr[j]==1&&p[i][j]==2) dsu(i, j);
for(int i = 0;i<n;++i){
int x = find_parent(i);
if(x==i&&rr[i])
{
if(s[i]==1) continue;
vector<int> q;
for(int j = 0;j<n;j++)
if(rr[j]&&find_parent(j)==i&&j!=i) q.pb(j);
q.pb(i);
int pret = i;
if(len(q)<=2) return 0;
for(int w : q) res[w][pret] = res[pret][w] = 1, pret = w;
}
}
build(res);
return 1;
}
# |
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 |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
10 ms |
1260 KB |
Output is correct |
7 |
Correct |
248 ms |
22104 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 |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
10 ms |
1260 KB |
Output is correct |
7 |
Correct |
248 ms |
22104 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
0 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 |
11 ms |
1260 KB |
Output is correct |
13 |
Correct |
249 ms |
22400 KB |
Output is correct |
14 |
Correct |
0 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
5 ms |
748 KB |
Output is correct |
17 |
Correct |
116 ms |
12140 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
0 ms |
364 KB |
Output is correct |
20 |
Correct |
63 ms |
5868 KB |
Output is correct |
21 |
Correct |
255 ms |
22252 KB |
Output is correct |
22 |
Correct |
257 ms |
22116 KB |
Output is correct |
23 |
Correct |
266 ms |
22124 KB |
Output is correct |
24 |
Correct |
250 ms |
22124 KB |
Output is correct |
25 |
Correct |
101 ms |
12140 KB |
Output is correct |
26 |
Correct |
101 ms |
12140 KB |
Output is correct |
27 |
Correct |
264 ms |
22252 KB |
Output is correct |
28 |
Correct |
251 ms |
22116 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 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 |
1 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 |
384 KB |
Output is correct |
8 |
Correct |
11 ms |
1260 KB |
Output is correct |
9 |
Correct |
257 ms |
22124 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 |
1260 KB |
Output is correct |
13 |
Correct |
245 ms |
22124 KB |
Output is correct |
14 |
Incorrect |
1 ms |
364 KB |
Answer gives possible 1 while actual possible 0 |
15 |
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 |
63 ms |
5868 KB |
Output is correct |
5 |
Correct |
257 ms |
22116 KB |
Output is correct |
6 |
Correct |
253 ms |
22140 KB |
Output is correct |
7 |
Correct |
275 ms |
22116 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
63 ms |
5868 KB |
Output is correct |
10 |
Correct |
258 ms |
22252 KB |
Output is correct |
11 |
Correct |
249 ms |
22124 KB |
Output is correct |
12 |
Correct |
260 ms |
22124 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
64 ms |
5868 KB |
Output is correct |
17 |
Correct |
253 ms |
22124 KB |
Output is correct |
18 |
Correct |
261 ms |
22124 KB |
Output is correct |
19 |
Correct |
257 ms |
22124 KB |
Output is correct |
20 |
Correct |
248 ms |
22124 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 |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
10 ms |
1260 KB |
Output is correct |
7 |
Correct |
248 ms |
22104 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
0 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 |
11 ms |
1260 KB |
Output is correct |
13 |
Correct |
249 ms |
22400 KB |
Output is correct |
14 |
Correct |
0 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
5 ms |
748 KB |
Output is correct |
17 |
Correct |
116 ms |
12140 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
0 ms |
364 KB |
Output is correct |
20 |
Correct |
63 ms |
5868 KB |
Output is correct |
21 |
Correct |
255 ms |
22252 KB |
Output is correct |
22 |
Correct |
257 ms |
22116 KB |
Output is correct |
23 |
Correct |
266 ms |
22124 KB |
Output is correct |
24 |
Correct |
250 ms |
22124 KB |
Output is correct |
25 |
Correct |
101 ms |
12140 KB |
Output is correct |
26 |
Correct |
101 ms |
12140 KB |
Output is correct |
27 |
Correct |
264 ms |
22252 KB |
Output is correct |
28 |
Correct |
251 ms |
22116 KB |
Output is correct |
29 |
Correct |
0 ms |
364 KB |
Output is correct |
30 |
Correct |
1 ms |
364 KB |
Output is correct |
31 |
Correct |
1 ms |
364 KB |
Output is correct |
32 |
Correct |
1 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 |
384 KB |
Output is correct |
36 |
Correct |
11 ms |
1260 KB |
Output is correct |
37 |
Correct |
257 ms |
22124 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 |
1260 KB |
Output is correct |
41 |
Correct |
245 ms |
22124 KB |
Output is correct |
42 |
Incorrect |
1 ms |
364 KB |
Answer gives possible 1 while actual possible 0 |
43 |
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 |
0 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
10 ms |
1260 KB |
Output is correct |
7 |
Correct |
248 ms |
22104 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
0 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 |
11 ms |
1260 KB |
Output is correct |
13 |
Correct |
249 ms |
22400 KB |
Output is correct |
14 |
Correct |
0 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
5 ms |
748 KB |
Output is correct |
17 |
Correct |
116 ms |
12140 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
0 ms |
364 KB |
Output is correct |
20 |
Correct |
63 ms |
5868 KB |
Output is correct |
21 |
Correct |
255 ms |
22252 KB |
Output is correct |
22 |
Correct |
257 ms |
22116 KB |
Output is correct |
23 |
Correct |
266 ms |
22124 KB |
Output is correct |
24 |
Correct |
250 ms |
22124 KB |
Output is correct |
25 |
Correct |
101 ms |
12140 KB |
Output is correct |
26 |
Correct |
101 ms |
12140 KB |
Output is correct |
27 |
Correct |
264 ms |
22252 KB |
Output is correct |
28 |
Correct |
251 ms |
22116 KB |
Output is correct |
29 |
Correct |
0 ms |
364 KB |
Output is correct |
30 |
Correct |
1 ms |
364 KB |
Output is correct |
31 |
Correct |
1 ms |
364 KB |
Output is correct |
32 |
Correct |
1 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 |
384 KB |
Output is correct |
36 |
Correct |
11 ms |
1260 KB |
Output is correct |
37 |
Correct |
257 ms |
22124 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 |
1260 KB |
Output is correct |
41 |
Correct |
245 ms |
22124 KB |
Output is correct |
42 |
Incorrect |
1 ms |
364 KB |
Answer gives possible 1 while actual possible 0 |
43 |
Halted |
0 ms |
0 KB |
- |