#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
int construct(vector<vector<int>> p) {
int n = p.size();
vector<vector<int>> answer;
answer.resize(n);
for(int i = 0; i < n; i++) answer[i].resize(n);
vector <int> comp;
// last subtask, p[i][j] == 3
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++)
if(p[i][j] > 2) return 0;
if(p[i][i] == 2 || p[i][i] == 0) return 0;
}
vector <bool> isroot;
int countcomp(0);
comp.resize(n);
isroot.resize(n);
for(int i = 0; i < n; i++) { // we consider i to be the root of the connected component
if(comp[i] != 0) continue; // it can't be a root
comp[i] = ++countcomp;
isroot[i] = true;
for(int j = 0; j < n; j++) {
if(i == j) continue;
if(p[i][j] == 1) { // if there is only 1 edge from i to j
comp[j] = countcomp;
answer[i][j] = answer[j][i] = 1;
}
}
}
// now we connect the roots between them to form a cycle
// we connect the i-th root with the i+1-th root
for(int i = 0; i < n; i++) {
if(isroot[i] == true) {
for(int j = i + 1; j < n; j++) {
if(p[i][j] == 2 && isroot[j]) {
answer[i][j] = answer[j][i] = 1;
j = n;
}
}
}
}
// we connect the last with the first root
for(int i = 0; i < n; i++) {
if(isroot[i] == true) {
for(int j = n - 1; j > i; j--) {
if(p[i][j] == 2 && isroot[j]) {
answer[i][j] = answer[j][i] = 1;
j = 0;
}
}
i = n;
}
}
// now we need to verify if our build is fine
// 1. We can't have a cycle of length 2
if(countcomp == 2) {
for(int i = 0; i < n; i++)
for(int j = 0; j < n; j++)
if(p[i][j] == 2)
return 0;
}
// 2. If p[a][b] = 1 and p[b][c] = 1, then p[a][c] = 1
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++)
if(comp[i] != comp[j] && p[i][j] == 1)
return 0;
}
build(answer);
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 |
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 |
11 ms |
1260 KB |
Output is correct |
7 |
Correct |
260 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 |
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 |
11 ms |
1260 KB |
Output is correct |
7 |
Correct |
260 ms |
22124 KB |
Output is correct |
8 |
Correct |
1 ms |
364 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 |
11 ms |
1260 KB |
Output is correct |
13 |
Correct |
252 ms |
22124 KB |
Output is correct |
14 |
Correct |
1 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 |
110 ms |
12140 KB |
Output is correct |
18 |
Correct |
1 ms |
380 KB |
Output is correct |
19 |
Incorrect |
1 ms |
364 KB |
Answer gives possible 1 while actual possible 0 |
20 |
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 |
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 |
364 KB |
Output is correct |
8 |
Correct |
10 ms |
1260 KB |
Output is correct |
9 |
Correct |
251 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 |
1260 KB |
Output is correct |
13 |
Correct |
252 ms |
22252 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 |
64 ms |
5868 KB |
Output is correct |
5 |
Correct |
255 ms |
22124 KB |
Output is correct |
6 |
Correct |
276 ms |
22200 KB |
Output is correct |
7 |
Correct |
253 ms |
22240 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Incorrect |
64 ms |
5868 KB |
Too few ways to get from 1 to 17, should be 2 found 1 |
10 |
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 |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
11 ms |
1260 KB |
Output is correct |
7 |
Correct |
260 ms |
22124 KB |
Output is correct |
8 |
Correct |
1 ms |
364 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 |
11 ms |
1260 KB |
Output is correct |
13 |
Correct |
252 ms |
22124 KB |
Output is correct |
14 |
Correct |
1 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 |
110 ms |
12140 KB |
Output is correct |
18 |
Correct |
1 ms |
380 KB |
Output is correct |
19 |
Incorrect |
1 ms |
364 KB |
Answer gives possible 1 while actual possible 0 |
20 |
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 |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
11 ms |
1260 KB |
Output is correct |
7 |
Correct |
260 ms |
22124 KB |
Output is correct |
8 |
Correct |
1 ms |
364 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 |
11 ms |
1260 KB |
Output is correct |
13 |
Correct |
252 ms |
22124 KB |
Output is correct |
14 |
Correct |
1 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 |
110 ms |
12140 KB |
Output is correct |
18 |
Correct |
1 ms |
380 KB |
Output is correct |
19 |
Incorrect |
1 ms |
364 KB |
Answer gives possible 1 while actual possible 0 |
20 |
Halted |
0 ms |
0 KB |
- |