#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
int global_A;
int n;
vector< pair<int, int> > sol;
inline void add_edge(int a, int b) {
sol.push_back(make_pair(a, b));
}
bool cmp(int a, int b) {
if (a == b) return false;
return Query(global_A, a, b) == a;
}
void solve(vector<int> nodes) {
if (nodes.size() == 1) return;
if (nodes.size() == 2) {
add_edge(nodes[0], nodes[1]);
return;
}
int n = nodes.size();
int A = nodes[rand() % n];
int B;
do {
B = nodes[rand() % n];
} while (A == B);
vector<int> path;
vector<int> query_ans(n);
for (int i = 0; i < n; ++i)
if (nodes[i] != A && nodes[i] != B) {
query_ans[i] = Query(A, B, nodes[i]);
if (query_ans[i] == nodes[i])
path.push_back(nodes[i]);
} else {
if (nodes[i] == A) query_ans[i] = A;
if (nodes[i] == B) query_ans[i] = B;
}
global_A = A;
sort(path.begin(), path.end(), cmp);
path.insert(path.begin(), A);
path.push_back(B);
for (size_t i = 0; i + 1 < path.size(); ++i)
add_edge(path[i], path[i + 1]);
vector< vector<int> > groups(path.size());
for (int i = 0; i < n; ++i) {
for (size_t j = 0; j < path.size(); ++j)
if (path[j] == query_ans[i]) {
groups[j].push_back(nodes[i]);
break;
}
}
for(auto it : groups)
solve(it);
}
void print_tree() {
for(auto it : sol) Bridge(min(it.first, it.second), max(it.first, it.second));
}
void Solve(int N) {
n = N;
srand(time(NULL));
vector<int> nodes;
for (int i = 0; i < n; ++i)
nodes.push_back(i);
sol.clear();
solve(nodes);
print_tree();
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
248 KB |
Output is correct |
| 5 |
Correct |
2 ms |
248 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
248 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
248 KB |
Output is correct |
| 12 |
Correct |
2 ms |
248 KB |
Output is correct |
| 13 |
Correct |
2 ms |
248 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
248 KB |
Output is correct |
| 5 |
Correct |
2 ms |
248 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
248 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
248 KB |
Output is correct |
| 12 |
Correct |
2 ms |
248 KB |
Output is correct |
| 13 |
Correct |
2 ms |
248 KB |
Output is correct |
| 14 |
Correct |
2 ms |
248 KB |
Output is correct |
| 15 |
Correct |
2 ms |
296 KB |
Output is correct |
| 16 |
Correct |
2 ms |
248 KB |
Output is correct |
| 17 |
Correct |
2 ms |
248 KB |
Output is correct |
| 18 |
Correct |
2 ms |
248 KB |
Output is correct |
| 19 |
Correct |
2 ms |
376 KB |
Output is correct |
| 20 |
Correct |
2 ms |
376 KB |
Output is correct |
| 21 |
Correct |
2 ms |
252 KB |
Output is correct |
| 22 |
Correct |
2 ms |
248 KB |
Output is correct |
| 23 |
Correct |
12 ms |
248 KB |
Output is correct |
| 24 |
Correct |
2 ms |
248 KB |
Output is correct |
| 25 |
Correct |
3 ms |
376 KB |
Output is correct |
| 26 |
Correct |
2 ms |
248 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
248 KB |
Output is correct |
| 5 |
Correct |
2 ms |
248 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
248 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
248 KB |
Output is correct |
| 12 |
Correct |
2 ms |
248 KB |
Output is correct |
| 13 |
Correct |
2 ms |
248 KB |
Output is correct |
| 14 |
Correct |
2 ms |
248 KB |
Output is correct |
| 15 |
Correct |
2 ms |
296 KB |
Output is correct |
| 16 |
Correct |
2 ms |
248 KB |
Output is correct |
| 17 |
Correct |
2 ms |
248 KB |
Output is correct |
| 18 |
Correct |
2 ms |
248 KB |
Output is correct |
| 19 |
Correct |
2 ms |
376 KB |
Output is correct |
| 20 |
Correct |
2 ms |
376 KB |
Output is correct |
| 21 |
Correct |
2 ms |
252 KB |
Output is correct |
| 22 |
Correct |
2 ms |
248 KB |
Output is correct |
| 23 |
Correct |
12 ms |
248 KB |
Output is correct |
| 24 |
Correct |
2 ms |
248 KB |
Output is correct |
| 25 |
Correct |
3 ms |
376 KB |
Output is correct |
| 26 |
Correct |
2 ms |
248 KB |
Output is correct |
| 27 |
Correct |
6 ms |
376 KB |
Output is correct |
| 28 |
Correct |
6 ms |
376 KB |
Output is correct |
| 29 |
Correct |
6 ms |
380 KB |
Output is correct |
| 30 |
Correct |
6 ms |
376 KB |
Output is correct |
| 31 |
Correct |
5 ms |
376 KB |
Output is correct |
| 32 |
Correct |
7 ms |
376 KB |
Output is correct |
| 33 |
Correct |
9 ms |
504 KB |
Output is correct |
| 34 |
Correct |
12 ms |
376 KB |
Output is correct |
| 35 |
Correct |
16 ms |
504 KB |
Output is correct |
| 36 |
Correct |
5 ms |
376 KB |
Output is correct |
| 37 |
Correct |
8 ms |
376 KB |
Output is correct |
| 38 |
Correct |
11 ms |
376 KB |
Output is correct |
| 39 |
Correct |
8 ms |
380 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
525 ms |
632 KB |
Output is correct |
| 2 |
Correct |
629 ms |
632 KB |
Output is correct |
| 3 |
Correct |
610 ms |
632 KB |
Output is correct |
| 4 |
Correct |
649 ms |
632 KB |
Output is correct |
| 5 |
Correct |
342 ms |
632 KB |
Output is correct |
| 6 |
Correct |
374 ms |
632 KB |
Output is correct |
| 7 |
Correct |
433 ms |
760 KB |
Output is correct |
| 8 |
Correct |
515 ms |
632 KB |
Output is correct |
| 9 |
Correct |
563 ms |
652 KB |
Output is correct |
| 10 |
Correct |
440 ms |
808 KB |
Output is correct |
| 11 |
Correct |
794 ms |
760 KB |
Output is correct |
| 12 |
Correct |
538 ms |
768 KB |
Output is correct |
| 13 |
Correct |
311 ms |
608 KB |
Output is correct |
| 14 |
Correct |
302 ms |
632 KB |
Output is correct |
| 15 |
Correct |
285 ms |
632 KB |
Output is correct |
| 16 |
Correct |
398 ms |
632 KB |
Output is correct |
| 17 |
Correct |
526 ms |
632 KB |
Output is correct |
| 18 |
Correct |
395 ms |
888 KB |
Output is correct |
| 19 |
Correct |
273 ms |
632 KB |
Output is correct |
| 20 |
Correct |
434 ms |
760 KB |
Output is correct |
| 21 |
Correct |
441 ms |
596 KB |
Output is correct |
| 22 |
Correct |
455 ms |
648 KB |
Output is correct |
| 23 |
Correct |
413 ms |
636 KB |
Output is correct |
| 24 |
Correct |
328 ms |
632 KB |
Output is correct |
| 25 |
Correct |
414 ms |
584 KB |
Output is correct |
| 26 |
Correct |
366 ms |
844 KB |
Output is correct |
| 27 |
Correct |
347 ms |
636 KB |
Output is correct |
| 28 |
Correct |
621 ms |
1016 KB |
Output is correct |
| 29 |
Correct |
485 ms |
632 KB |
Output is correct |
| 30 |
Correct |
569 ms |
632 KB |
Output is correct |
| 31 |
Correct |
507 ms |
760 KB |
Output is correct |
| 32 |
Correct |
1371 ms |
920 KB |
Output is correct |
| 33 |
Correct |
685 ms |
848 KB |
Output is correct |
| 34 |
Correct |
6 ms |
376 KB |
Output is correct |
| 35 |
Correct |
6 ms |
376 KB |
Output is correct |
| 36 |
Correct |
6 ms |
380 KB |
Output is correct |
| 37 |
Correct |
7 ms |
376 KB |
Output is correct |
| 38 |
Correct |
6 ms |
376 KB |
Output is correct |
| 39 |
Correct |
7 ms |
376 KB |
Output is correct |
| 40 |
Correct |
9 ms |
376 KB |
Output is correct |
| 41 |
Correct |
10 ms |
376 KB |
Output is correct |
| 42 |
Correct |
10 ms |
376 KB |
Output is correct |
| 43 |
Correct |
6 ms |
376 KB |
Output is correct |
| 44 |
Correct |
10 ms |
376 KB |
Output is correct |
| 45 |
Correct |
13 ms |
376 KB |
Output is correct |
| 46 |
Correct |
8 ms |
376 KB |
Output is correct |
| 47 |
Correct |
2 ms |
376 KB |
Output is correct |
| 48 |
Correct |
2 ms |
248 KB |
Output is correct |
| 49 |
Correct |
2 ms |
376 KB |
Output is correct |
| 50 |
Correct |
2 ms |
248 KB |
Output is correct |
| 51 |
Correct |
2 ms |
376 KB |
Output is correct |
| 52 |
Correct |
2 ms |
248 KB |
Output is correct |
| 53 |
Correct |
2 ms |
376 KB |
Output is correct |
| 54 |
Correct |
2 ms |
248 KB |
Output is correct |
| 55 |
Correct |
2 ms |
248 KB |
Output is correct |
| 56 |
Correct |
2 ms |
248 KB |
Output is correct |
| 57 |
Correct |
2 ms |
248 KB |
Output is correct |
| 58 |
Correct |
2 ms |
248 KB |
Output is correct |
| 59 |
Correct |
2 ms |
248 KB |
Output is correct |
| 60 |
Correct |
1 ms |
376 KB |
Output is correct |
| 61 |
Correct |
2 ms |
248 KB |
Output is correct |
| 62 |
Correct |
2 ms |
376 KB |
Output is correct |
| 63 |
Correct |
2 ms |
376 KB |
Output is correct |
| 64 |
Correct |
2 ms |
248 KB |
Output is correct |
| 65 |
Correct |
2 ms |
248 KB |
Output is correct |
| 66 |
Correct |
2 ms |
376 KB |
Output is correct |
| 67 |
Correct |
15 ms |
376 KB |
Output is correct |
| 68 |
Correct |
2 ms |
248 KB |
Output is correct |
| 69 |
Correct |
2 ms |
248 KB |
Output is correct |
| 70 |
Correct |
2 ms |
380 KB |
Output is correct |
| 71 |
Correct |
2 ms |
248 KB |
Output is correct |
| 72 |
Correct |
2 ms |
248 KB |
Output is correct |
