#include<bits/stdc++.h>
#include "supertrees.h"
using namespace std;
vector < int > adj[1002];
int ataman[10002], used[1002];
int Get(int x) {
if ( x == ataman[x]) return x;
return ataman[x] = Get(ataman[x]);
}
void Unite(int x, int y) {
x = Get(x);
y = Get(y);
if (x == y) return ;
if ( x < y) swap(x, y);
ataman[x]= y;
}
int construct(vector<vector<int>> a) {
int n = a.size(), i, j;
vector < vector < int > > ans(n, vector<int>(n, 0));
int s = 1;
for (i = 0; i < n; i ++) ataman[i] = i;
for (i = 0; i < n; i ++) {
for (j = 0; j < n; j ++) {
if ( a[i][j] == 2 && i != j) Unite(i, j);
}
}
for (i = 0; i < n; i ++) used[i] = 0;
for (i = 0; i < n; i ++) {
for (j = 0; j < n; j ++) {
if ( i == j) continue;
if ( (a[i][j] == 0 || a[i][j] == 3) && Get(i) == Get(j)) s= 0;
if ( a[i][j] == 2 && Get(i) != Get(j)) s = 0;
}
}
for (i = 0; i < n; i ++) {
vector < int > v;
v.push_back(i);
for (j = i + 1; j < n; j ++) {
if ( Get(j) == Get(i) && !used[j]) v.push_back(j);
}
if(v.size() == 1) continue;
if ( v.size() == 2){
s = 0;
break;
}
used[i] = 1;
for (j = 1; j < v.size(); j ++) {
used[v[j]] = 1;
ans[v[j]][v[j - 1]] = ans[v[j - 1]][v[j]] = 1;
}
ans[v[0]][v[v.size() -1]] = ans[v[v.size() -1]][v[0]] = 1;
}
for (i = 0; i < n; i ++) ataman[i]= i, used[i] = 0;
for ( i = 0; i < n; i++) {
for ( j = 0; j < n; j ++) {
if ( a[i][j] == 1 && i != j) Unite(i, j);
}
}
for (i = 0; i < n; i ++) {
for (j = 0; j < n; j ++) {
if ( i == j) continue;
if ( (a[i][j] == 0 || a[i][j] == 3) && Get(i) == Get(j)) s= 0;
if ( a[i][j] == 1 && Get(i) != Get(j)) s = 0;
}
}
for (i = 0; i < n; i ++) {
vector < int > v;
v.push_back(i);
for (j = i + 1; j < n; j ++) {
if ( Get(j) == Get(i) && !used[j]) v.push_back(j);
}
used[i] = 1;
for (j = 1; j < v.size(); j ++) {
used[v[j]] = 1;
ans[v[j]][v[j - 1]] = ans[v[j - 1]][v[j]] = 1;
}
}
if ( s == 0) return 0;
build(ans);
return s;
}
Compilation message
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:49:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
49 | for (j = 1; j < v.size(); j ++) {
| ~~^~~~~~~~~~
supertrees.cpp:78:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
78 | for (j = 1; j < v.size(); j ++) {
| ~~^~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
7 ms |
1112 KB |
Output is correct |
7 |
Correct |
177 ms |
22072 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
7 ms |
1112 KB |
Output is correct |
7 |
Correct |
177 ms |
22072 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
7 ms |
1112 KB |
Output is correct |
13 |
Correct |
170 ms |
22068 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
4 ms |
860 KB |
Output is correct |
17 |
Correct |
91 ms |
12216 KB |
Output is correct |
18 |
Correct |
0 ms |
600 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
42 ms |
5896 KB |
Output is correct |
21 |
Correct |
172 ms |
22100 KB |
Output is correct |
22 |
Correct |
182 ms |
22292 KB |
Output is correct |
23 |
Correct |
169 ms |
22096 KB |
Output is correct |
24 |
Correct |
164 ms |
22100 KB |
Output is correct |
25 |
Correct |
91 ms |
12080 KB |
Output is correct |
26 |
Correct |
75 ms |
12112 KB |
Output is correct |
27 |
Correct |
171 ms |
22188 KB |
Output is correct |
28 |
Correct |
164 ms |
22100 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
7 ms |
1116 KB |
Output is correct |
9 |
Correct |
166 ms |
22064 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
7 ms |
1132 KB |
Output is correct |
13 |
Correct |
170 ms |
22184 KB |
Output is correct |
14 |
Correct |
1 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
4 ms |
880 KB |
Output is correct |
17 |
Correct |
94 ms |
12116 KB |
Output is correct |
18 |
Correct |
1 ms |
596 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
42 ms |
5716 KB |
Output is correct |
22 |
Correct |
167 ms |
22260 KB |
Output is correct |
23 |
Correct |
166 ms |
22052 KB |
Output is correct |
24 |
Correct |
183 ms |
22100 KB |
Output is correct |
25 |
Correct |
77 ms |
12064 KB |
Output is correct |
26 |
Correct |
76 ms |
12088 KB |
Output is correct |
27 |
Correct |
172 ms |
21980 KB |
Output is correct |
28 |
Correct |
168 ms |
22188 KB |
Output is correct |
29 |
Correct |
74 ms |
12112 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
46 ms |
5716 KB |
Output is correct |
5 |
Correct |
165 ms |
22204 KB |
Output is correct |
6 |
Correct |
177 ms |
22276 KB |
Output is correct |
7 |
Correct |
168 ms |
22096 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
42 ms |
5724 KB |
Output is correct |
10 |
Correct |
166 ms |
22100 KB |
Output is correct |
11 |
Correct |
175 ms |
22096 KB |
Output is correct |
12 |
Correct |
172 ms |
22052 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Incorrect |
0 ms |
348 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 |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
7 ms |
1112 KB |
Output is correct |
7 |
Correct |
177 ms |
22072 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
7 ms |
1112 KB |
Output is correct |
13 |
Correct |
170 ms |
22068 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
4 ms |
860 KB |
Output is correct |
17 |
Correct |
91 ms |
12216 KB |
Output is correct |
18 |
Correct |
0 ms |
600 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
42 ms |
5896 KB |
Output is correct |
21 |
Correct |
172 ms |
22100 KB |
Output is correct |
22 |
Correct |
182 ms |
22292 KB |
Output is correct |
23 |
Correct |
169 ms |
22096 KB |
Output is correct |
24 |
Correct |
164 ms |
22100 KB |
Output is correct |
25 |
Correct |
91 ms |
12080 KB |
Output is correct |
26 |
Correct |
75 ms |
12112 KB |
Output is correct |
27 |
Correct |
171 ms |
22188 KB |
Output is correct |
28 |
Correct |
164 ms |
22100 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
1 ms |
344 KB |
Output is correct |
36 |
Correct |
7 ms |
1116 KB |
Output is correct |
37 |
Correct |
166 ms |
22064 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
7 ms |
1132 KB |
Output is correct |
41 |
Correct |
170 ms |
22184 KB |
Output is correct |
42 |
Correct |
1 ms |
344 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
4 ms |
880 KB |
Output is correct |
45 |
Correct |
94 ms |
12116 KB |
Output is correct |
46 |
Correct |
1 ms |
596 KB |
Output is correct |
47 |
Correct |
1 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
42 ms |
5716 KB |
Output is correct |
50 |
Correct |
167 ms |
22260 KB |
Output is correct |
51 |
Correct |
166 ms |
22052 KB |
Output is correct |
52 |
Correct |
183 ms |
22100 KB |
Output is correct |
53 |
Correct |
77 ms |
12064 KB |
Output is correct |
54 |
Correct |
76 ms |
12088 KB |
Output is correct |
55 |
Correct |
172 ms |
21980 KB |
Output is correct |
56 |
Correct |
168 ms |
22188 KB |
Output is correct |
57 |
Correct |
74 ms |
12112 KB |
Output is correct |
58 |
Correct |
1 ms |
348 KB |
Output is correct |
59 |
Correct |
0 ms |
348 KB |
Output is correct |
60 |
Correct |
4 ms |
952 KB |
Output is correct |
61 |
Correct |
120 ms |
12304 KB |
Output is correct |
62 |
Correct |
0 ms |
600 KB |
Output is correct |
63 |
Correct |
0 ms |
348 KB |
Output is correct |
64 |
Correct |
1 ms |
344 KB |
Output is correct |
65 |
Incorrect |
49 ms |
5716 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 |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
7 ms |
1112 KB |
Output is correct |
7 |
Correct |
177 ms |
22072 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
7 ms |
1112 KB |
Output is correct |
13 |
Correct |
170 ms |
22068 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
4 ms |
860 KB |
Output is correct |
17 |
Correct |
91 ms |
12216 KB |
Output is correct |
18 |
Correct |
0 ms |
600 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
42 ms |
5896 KB |
Output is correct |
21 |
Correct |
172 ms |
22100 KB |
Output is correct |
22 |
Correct |
182 ms |
22292 KB |
Output is correct |
23 |
Correct |
169 ms |
22096 KB |
Output is correct |
24 |
Correct |
164 ms |
22100 KB |
Output is correct |
25 |
Correct |
91 ms |
12080 KB |
Output is correct |
26 |
Correct |
75 ms |
12112 KB |
Output is correct |
27 |
Correct |
171 ms |
22188 KB |
Output is correct |
28 |
Correct |
164 ms |
22100 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
1 ms |
348 KB |
Output is correct |
35 |
Correct |
1 ms |
344 KB |
Output is correct |
36 |
Correct |
7 ms |
1116 KB |
Output is correct |
37 |
Correct |
166 ms |
22064 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
7 ms |
1132 KB |
Output is correct |
41 |
Correct |
170 ms |
22184 KB |
Output is correct |
42 |
Correct |
1 ms |
344 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
4 ms |
880 KB |
Output is correct |
45 |
Correct |
94 ms |
12116 KB |
Output is correct |
46 |
Correct |
1 ms |
596 KB |
Output is correct |
47 |
Correct |
1 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
42 ms |
5716 KB |
Output is correct |
50 |
Correct |
167 ms |
22260 KB |
Output is correct |
51 |
Correct |
166 ms |
22052 KB |
Output is correct |
52 |
Correct |
183 ms |
22100 KB |
Output is correct |
53 |
Correct |
77 ms |
12064 KB |
Output is correct |
54 |
Correct |
76 ms |
12088 KB |
Output is correct |
55 |
Correct |
172 ms |
21980 KB |
Output is correct |
56 |
Correct |
168 ms |
22188 KB |
Output is correct |
57 |
Correct |
74 ms |
12112 KB |
Output is correct |
58 |
Correct |
1 ms |
344 KB |
Output is correct |
59 |
Correct |
0 ms |
348 KB |
Output is correct |
60 |
Correct |
0 ms |
348 KB |
Output is correct |
61 |
Correct |
46 ms |
5716 KB |
Output is correct |
62 |
Correct |
165 ms |
22204 KB |
Output is correct |
63 |
Correct |
177 ms |
22276 KB |
Output is correct |
64 |
Correct |
168 ms |
22096 KB |
Output is correct |
65 |
Correct |
0 ms |
348 KB |
Output is correct |
66 |
Correct |
42 ms |
5724 KB |
Output is correct |
67 |
Correct |
166 ms |
22100 KB |
Output is correct |
68 |
Correct |
175 ms |
22096 KB |
Output is correct |
69 |
Correct |
172 ms |
22052 KB |
Output is correct |
70 |
Correct |
0 ms |
348 KB |
Output is correct |
71 |
Correct |
0 ms |
348 KB |
Output is correct |
72 |
Incorrect |
0 ms |
348 KB |
Too many ways to get from 0 to 4, should be 1 found no less than 2 |
73 |
Halted |
0 ms |
0 KB |
- |