#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
#ifdef LOCAL
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
template<typename ...Args>
void logger(string vars, Args&&... values) {
cerr<<vars<<" = ";
string delim="";
(...,(cerr<<delim<<values,delim=", "));
cerr<<"\n";
}
#else
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
template<typename ...Args>
void logger(string vars, Args&&... values) {}
#endif
#define pb push_back
#define sz(x) (int)(x.size())
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
template<typename T> inline void maxa(T& a,T b){a=max(a,b);}
template<typename T> inline void mina(T& a,T b){a=min(a,b);}
// void build(vector<vector<int>> b){
// int n=sz(b);
// for(int i=0;i<n;i++){
// for(int j=0;j<n;j++){
// cout<<b[i][j]<<" ";
// }
// cout<<"\n";
// }
// }
const int mxN=1e3+5;
int uf[mxN],seen[mxN],is_triple[mxN];
vector<int> component[mxN];
vector<vector<int>> g;
int find(int x){return uf[x]<0?x:uf[x]=find(uf[x]);}
bool same(int x,int y){return find(x)==find(y);}
void unite(int x,int y){
x=find(x); y=find(y);
if(x==y)
return;
if(uf[x]>uf[y])
swap(x,y);
uf[x]+=uf[y]; uf[y]=x;
}
int construct(vector<vector<int>> p){
g=p;
memset(uf,-1,sizeof(uf));
int n=sz(p);
vector<vector<int>> b;
b.resize(n);
for(auto &u:b)
u.resize(n);
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
if(g[i][j]){
unite(i,j);
}
}
}
for(int i=0;i<n;i++){
component[find(i)].pb(i);
for(int j=0;j<n;j++){
if(!g[i][j] && same(i,j))
return 0;
}
}
for(int i=0;i<n;i++){
if(sz(component[i])<=1)
continue;
vector<vector<int>> line; vector<int> ring; vector<int> triple; vector<int> single;
int twocnt=0; int cnt=0;
for(int &j:component[i]){
if(seen[j]){
single.pb(j);
continue;
}
int three=1; int has=0;
vector<int> one={j};
for(int k=0;k<n;k++){
if(g[j][k]==1 && j!=k){
one.pb(k);
seen[k]=1;
}
twocnt+=(g[j][k]==2);
if((g[j][k]==1 || g[j][k]==2) && j!=k){
three=0;
}
if(g[j][k]==3)
has=1;
}
if(sz(one)==1)
ring.pb(j);
else
line.pb(one);
if(three)
triple.pb(j);
else
single.pb(j);
cnt+=has;
}
if(cnt && twocnt)
return 0;
if(cnt && sz(triple)<4)
return 0;
if(sz(triple)){
for(int j=0;j<sz(single);j++){
for(int k=j+1;k<sz(single);k++){
if(g[single[k]][single[j]]!=1){
return 0;
}
}
}
for(int j=0;j<sz(single)-1;j++){
b[single[j]][single[j+1]]=b[single[j+1]][single[j]]=1;
}
for(int j=0;j<sz(triple)-1;j++){
b[triple[j]][triple[j+1]]=b[triple[j+1]][triple[j]]=1;
}
b[triple[0]][triple.back()]=b[triple.back()][triple[0]]=1;
b[triple[0]][triple[sz(triple)-2]]=b[triple[sz(triple)-2]][triple[0]]=1;
if(sz(single)){
b[single[0]][triple.back()]=b[triple.back()][single[0]]=1;
}
continue;
}
if(sz(line)==0){
if(sz(ring)==2)
return 0;
for(int j=0;j<sz(ring);j++){
b[ring[j]][ring[(j+1)%sz(ring)]]=b[ring[(j+1)%sz(ring)]][ring[j]]=1;
}
} else{
for(int j=0;j<sz(ring)-1;j++){
b[ring[j]][ring[j+1]]=b[ring[j+1]][ring[j]]=1;
}
for(auto u:line){
for(int j=0;j<sz(u)-1;j++){
b[u[j]][u[j+1]]=b[u[j+1]][u[j]]=1;
}
}
for(int j=0;j<sz(line)-1;j++){
b[line[j][0]][line[j+1][0]]=b[line[j+1][0]][line[j][0]]=1;
}
if(sz(ring)){
b[line.back()[0]][ring.back()]=b[ring.back()][line.back()[0]]=1;
b[line[0][0]][ring[0]]=b[ring[0]][line[0][0]]=1;
} else if(sz(line)>1){
b[line.back()[0]][line[0][0]]=b[line[0][0]][line.back()[0]]=1;
}
}
}
build(b);
return 1;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
10 ms |
1356 KB |
Output is correct |
7 |
Correct |
237 ms |
26016 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
10 ms |
1356 KB |
Output is correct |
7 |
Correct |
237 ms |
26016 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
9 ms |
1356 KB |
Output is correct |
13 |
Correct |
229 ms |
26020 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
5 ms |
844 KB |
Output is correct |
17 |
Correct |
109 ms |
16024 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
70 ms |
6688 KB |
Output is correct |
21 |
Correct |
238 ms |
26016 KB |
Output is correct |
22 |
Correct |
225 ms |
26032 KB |
Output is correct |
23 |
Correct |
248 ms |
25936 KB |
Output is correct |
24 |
Correct |
224 ms |
26024 KB |
Output is correct |
25 |
Correct |
100 ms |
16068 KB |
Output is correct |
26 |
Correct |
100 ms |
16024 KB |
Output is correct |
27 |
Correct |
238 ms |
26008 KB |
Output is correct |
28 |
Correct |
226 ms |
25960 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
9 ms |
1356 KB |
Output is correct |
9 |
Correct |
223 ms |
26052 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
10 ms |
1356 KB |
Output is correct |
13 |
Correct |
228 ms |
25908 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
5 ms |
844 KB |
Output is correct |
17 |
Correct |
109 ms |
16024 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
0 ms |
204 KB |
Output is correct |
20 |
Correct |
0 ms |
204 KB |
Output is correct |
21 |
Correct |
58 ms |
6728 KB |
Output is correct |
22 |
Correct |
235 ms |
25924 KB |
Output is correct |
23 |
Correct |
247 ms |
25912 KB |
Output is correct |
24 |
Correct |
243 ms |
26020 KB |
Output is correct |
25 |
Correct |
95 ms |
16036 KB |
Output is correct |
26 |
Correct |
96 ms |
16036 KB |
Output is correct |
27 |
Correct |
231 ms |
25924 KB |
Output is correct |
28 |
Correct |
247 ms |
25988 KB |
Output is correct |
29 |
Correct |
94 ms |
16020 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
320 KB |
Output is correct |
4 |
Correct |
58 ms |
6732 KB |
Output is correct |
5 |
Correct |
230 ms |
26016 KB |
Output is correct |
6 |
Correct |
233 ms |
25924 KB |
Output is correct |
7 |
Correct |
241 ms |
25980 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
61 ms |
6772 KB |
Output is correct |
10 |
Correct |
249 ms |
25944 KB |
Output is correct |
11 |
Correct |
234 ms |
25924 KB |
Output is correct |
12 |
Correct |
245 ms |
25928 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
60 ms |
6804 KB |
Output is correct |
17 |
Correct |
232 ms |
26008 KB |
Output is correct |
18 |
Correct |
243 ms |
26076 KB |
Output is correct |
19 |
Correct |
227 ms |
26016 KB |
Output is correct |
20 |
Correct |
222 ms |
26020 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
10 ms |
1356 KB |
Output is correct |
7 |
Correct |
237 ms |
26016 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
9 ms |
1356 KB |
Output is correct |
13 |
Correct |
229 ms |
26020 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
5 ms |
844 KB |
Output is correct |
17 |
Correct |
109 ms |
16024 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
70 ms |
6688 KB |
Output is correct |
21 |
Correct |
238 ms |
26016 KB |
Output is correct |
22 |
Correct |
225 ms |
26032 KB |
Output is correct |
23 |
Correct |
248 ms |
25936 KB |
Output is correct |
24 |
Correct |
224 ms |
26024 KB |
Output is correct |
25 |
Correct |
100 ms |
16068 KB |
Output is correct |
26 |
Correct |
100 ms |
16024 KB |
Output is correct |
27 |
Correct |
238 ms |
26008 KB |
Output is correct |
28 |
Correct |
226 ms |
25960 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
0 ms |
204 KB |
Output is correct |
31 |
Correct |
0 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
1 ms |
332 KB |
Output is correct |
34 |
Correct |
0 ms |
204 KB |
Output is correct |
35 |
Correct |
0 ms |
204 KB |
Output is correct |
36 |
Correct |
9 ms |
1356 KB |
Output is correct |
37 |
Correct |
223 ms |
26052 KB |
Output is correct |
38 |
Correct |
0 ms |
204 KB |
Output is correct |
39 |
Correct |
0 ms |
204 KB |
Output is correct |
40 |
Correct |
10 ms |
1356 KB |
Output is correct |
41 |
Correct |
228 ms |
25908 KB |
Output is correct |
42 |
Correct |
0 ms |
204 KB |
Output is correct |
43 |
Correct |
0 ms |
204 KB |
Output is correct |
44 |
Correct |
5 ms |
844 KB |
Output is correct |
45 |
Correct |
109 ms |
16024 KB |
Output is correct |
46 |
Correct |
0 ms |
204 KB |
Output is correct |
47 |
Correct |
0 ms |
204 KB |
Output is correct |
48 |
Correct |
0 ms |
204 KB |
Output is correct |
49 |
Correct |
58 ms |
6728 KB |
Output is correct |
50 |
Correct |
235 ms |
25924 KB |
Output is correct |
51 |
Correct |
247 ms |
25912 KB |
Output is correct |
52 |
Correct |
243 ms |
26020 KB |
Output is correct |
53 |
Correct |
95 ms |
16036 KB |
Output is correct |
54 |
Correct |
96 ms |
16036 KB |
Output is correct |
55 |
Correct |
231 ms |
25924 KB |
Output is correct |
56 |
Correct |
247 ms |
25988 KB |
Output is correct |
57 |
Correct |
94 ms |
16020 KB |
Output is correct |
58 |
Correct |
0 ms |
204 KB |
Output is correct |
59 |
Correct |
0 ms |
204 KB |
Output is correct |
60 |
Correct |
5 ms |
948 KB |
Output is correct |
61 |
Correct |
107 ms |
16032 KB |
Output is correct |
62 |
Correct |
0 ms |
204 KB |
Output is correct |
63 |
Correct |
0 ms |
332 KB |
Output is correct |
64 |
Correct |
1 ms |
204 KB |
Output is correct |
65 |
Correct |
60 ms |
6680 KB |
Output is correct |
66 |
Correct |
130 ms |
16036 KB |
Output is correct |
67 |
Correct |
96 ms |
16024 KB |
Output is correct |
68 |
Correct |
94 ms |
16068 KB |
Output is correct |
69 |
Correct |
100 ms |
16196 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
332 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
10 ms |
1356 KB |
Output is correct |
7 |
Correct |
237 ms |
26016 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
9 ms |
1356 KB |
Output is correct |
13 |
Correct |
229 ms |
26020 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
5 ms |
844 KB |
Output is correct |
17 |
Correct |
109 ms |
16024 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
70 ms |
6688 KB |
Output is correct |
21 |
Correct |
238 ms |
26016 KB |
Output is correct |
22 |
Correct |
225 ms |
26032 KB |
Output is correct |
23 |
Correct |
248 ms |
25936 KB |
Output is correct |
24 |
Correct |
224 ms |
26024 KB |
Output is correct |
25 |
Correct |
100 ms |
16068 KB |
Output is correct |
26 |
Correct |
100 ms |
16024 KB |
Output is correct |
27 |
Correct |
238 ms |
26008 KB |
Output is correct |
28 |
Correct |
226 ms |
25960 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
0 ms |
204 KB |
Output is correct |
31 |
Correct |
0 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
1 ms |
332 KB |
Output is correct |
34 |
Correct |
0 ms |
204 KB |
Output is correct |
35 |
Correct |
0 ms |
204 KB |
Output is correct |
36 |
Correct |
9 ms |
1356 KB |
Output is correct |
37 |
Correct |
223 ms |
26052 KB |
Output is correct |
38 |
Correct |
0 ms |
204 KB |
Output is correct |
39 |
Correct |
0 ms |
204 KB |
Output is correct |
40 |
Correct |
10 ms |
1356 KB |
Output is correct |
41 |
Correct |
228 ms |
25908 KB |
Output is correct |
42 |
Correct |
0 ms |
204 KB |
Output is correct |
43 |
Correct |
0 ms |
204 KB |
Output is correct |
44 |
Correct |
5 ms |
844 KB |
Output is correct |
45 |
Correct |
109 ms |
16024 KB |
Output is correct |
46 |
Correct |
0 ms |
204 KB |
Output is correct |
47 |
Correct |
0 ms |
204 KB |
Output is correct |
48 |
Correct |
0 ms |
204 KB |
Output is correct |
49 |
Correct |
58 ms |
6728 KB |
Output is correct |
50 |
Correct |
235 ms |
25924 KB |
Output is correct |
51 |
Correct |
247 ms |
25912 KB |
Output is correct |
52 |
Correct |
243 ms |
26020 KB |
Output is correct |
53 |
Correct |
95 ms |
16036 KB |
Output is correct |
54 |
Correct |
96 ms |
16036 KB |
Output is correct |
55 |
Correct |
231 ms |
25924 KB |
Output is correct |
56 |
Correct |
247 ms |
25988 KB |
Output is correct |
57 |
Correct |
94 ms |
16020 KB |
Output is correct |
58 |
Correct |
0 ms |
204 KB |
Output is correct |
59 |
Correct |
0 ms |
204 KB |
Output is correct |
60 |
Correct |
1 ms |
320 KB |
Output is correct |
61 |
Correct |
58 ms |
6732 KB |
Output is correct |
62 |
Correct |
230 ms |
26016 KB |
Output is correct |
63 |
Correct |
233 ms |
25924 KB |
Output is correct |
64 |
Correct |
241 ms |
25980 KB |
Output is correct |
65 |
Correct |
0 ms |
204 KB |
Output is correct |
66 |
Correct |
61 ms |
6772 KB |
Output is correct |
67 |
Correct |
249 ms |
25944 KB |
Output is correct |
68 |
Correct |
234 ms |
25924 KB |
Output is correct |
69 |
Correct |
245 ms |
25928 KB |
Output is correct |
70 |
Correct |
0 ms |
204 KB |
Output is correct |
71 |
Correct |
0 ms |
204 KB |
Output is correct |
72 |
Correct |
0 ms |
204 KB |
Output is correct |
73 |
Correct |
60 ms |
6804 KB |
Output is correct |
74 |
Correct |
232 ms |
26008 KB |
Output is correct |
75 |
Correct |
243 ms |
26076 KB |
Output is correct |
76 |
Correct |
227 ms |
26016 KB |
Output is correct |
77 |
Correct |
222 ms |
26020 KB |
Output is correct |
78 |
Correct |
0 ms |
204 KB |
Output is correct |
79 |
Correct |
0 ms |
204 KB |
Output is correct |
80 |
Correct |
5 ms |
948 KB |
Output is correct |
81 |
Correct |
107 ms |
16032 KB |
Output is correct |
82 |
Correct |
0 ms |
204 KB |
Output is correct |
83 |
Correct |
0 ms |
332 KB |
Output is correct |
84 |
Correct |
1 ms |
204 KB |
Output is correct |
85 |
Correct |
60 ms |
6680 KB |
Output is correct |
86 |
Correct |
130 ms |
16036 KB |
Output is correct |
87 |
Correct |
96 ms |
16024 KB |
Output is correct |
88 |
Correct |
94 ms |
16068 KB |
Output is correct |
89 |
Correct |
100 ms |
16196 KB |
Output is correct |
90 |
Correct |
1 ms |
204 KB |
Output is correct |
91 |
Correct |
0 ms |
204 KB |
Output is correct |
92 |
Correct |
5 ms |
856 KB |
Output is correct |
93 |
Correct |
102 ms |
16020 KB |
Output is correct |
94 |
Correct |
0 ms |
204 KB |
Output is correct |
95 |
Correct |
0 ms |
204 KB |
Output is correct |
96 |
Correct |
0 ms |
204 KB |
Output is correct |
97 |
Correct |
25 ms |
4260 KB |
Output is correct |
98 |
Correct |
98 ms |
16032 KB |
Output is correct |
99 |
Correct |
98 ms |
16024 KB |
Output is correct |
100 |
Correct |
95 ms |
16036 KB |
Output is correct |
101 |
Correct |
95 ms |
16068 KB |
Output is correct |
102 |
Incorrect |
229 ms |
26004 KB |
Answer gives possible 1 while actual possible 0 |
103 |
Halted |
0 ms |
0 KB |
- |