#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
void bridge( int u, int v ) {
if ( u > v )
swap( u, v );
Bridge( u, v );
}
void solve( int root, vector<int> &subtree ) {
if ( subtree.size() == 0 )
return;
random_shuffle( subtree.begin(), subtree.end() );
unordered_map<int, vector<int>> newSubtrees;
vector<int> path;
int pivot = subtree[0];
for ( int i = 1; i < subtree.size(); i++ ) {
int ans = Query( root, pivot, subtree[i] );
if ( ans == subtree[i] )
path.push_back( subtree[i] );
else
newSubtrees[ans].push_back( subtree[i] );
}
for ( int i = 1; i < path.size(); i++ ) {
int l = -1, r = i;
while ( r - l > 1 ) {
int mid = (l + r) / 2;
if ( Query( root, path[mid], path[i] ) == path[mid] )
l = mid;
else
r = mid;
}
for ( int j = i; j > r; j-- )
swap( path[j], path[j - 1] );
}
if ( path.size() == 0 )
bridge( root, pivot );
else {
bridge( root, path[0] );
for ( int i = 0; i < path.size() - 1; i++ )
bridge( path[i], path[i + 1] );
bridge( path[path.size() - 1], pivot );
}
for ( auto &st: newSubtrees )
solve( st.first, st.second );
}
void Solve( int n ) {
int root = 0;
vector<int> subtree;
for ( int u = 1; u < n; u++ )
subtree.push_back( u );
solve( root, subtree );
}
Compilation message
meetings.cpp: In function 'void solve(int, std::vector<int>&)':
meetings.cpp:21:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
21 | for ( int i = 1; i < subtree.size(); i++ ) {
| ~~^~~~~~~~~~~~~~~~
meetings.cpp:29:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
29 | for ( int i = 1; i < path.size(); i++ ) {
| ~~^~~~~~~~~~~~~
meetings.cpp:47:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
47 | for ( int i = 0; i < path.size() - 1; i++ )
| ~~^~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
0 ms |
276 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
0 ms |
336 KB |
Output is correct |
| 7 |
Correct |
0 ms |
336 KB |
Output is correct |
| 8 |
Correct |
0 ms |
336 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
336 KB |
Output is correct |
| 11 |
Correct |
0 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
336 KB |
Output is correct |
| 13 |
Correct |
0 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
0 ms |
276 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
0 ms |
336 KB |
Output is correct |
| 7 |
Correct |
0 ms |
336 KB |
Output is correct |
| 8 |
Correct |
0 ms |
336 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
336 KB |
Output is correct |
| 11 |
Correct |
0 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
336 KB |
Output is correct |
| 13 |
Correct |
0 ms |
336 KB |
Output is correct |
| 14 |
Correct |
0 ms |
336 KB |
Output is correct |
| 15 |
Correct |
0 ms |
336 KB |
Output is correct |
| 16 |
Correct |
0 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
0 ms |
336 KB |
Output is correct |
| 20 |
Correct |
0 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
336 KB |
Output is correct |
| 22 |
Correct |
0 ms |
336 KB |
Output is correct |
| 23 |
Correct |
0 ms |
336 KB |
Output is correct |
| 24 |
Correct |
0 ms |
336 KB |
Output is correct |
| 25 |
Correct |
0 ms |
336 KB |
Output is correct |
| 26 |
Correct |
0 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
0 ms |
276 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
0 ms |
336 KB |
Output is correct |
| 7 |
Correct |
0 ms |
336 KB |
Output is correct |
| 8 |
Correct |
0 ms |
336 KB |
Output is correct |
| 9 |
Correct |
0 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
336 KB |
Output is correct |
| 11 |
Correct |
0 ms |
336 KB |
Output is correct |
| 12 |
Correct |
0 ms |
336 KB |
Output is correct |
| 13 |
Correct |
0 ms |
336 KB |
Output is correct |
| 14 |
Correct |
0 ms |
336 KB |
Output is correct |
| 15 |
Correct |
0 ms |
336 KB |
Output is correct |
| 16 |
Correct |
0 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
0 ms |
336 KB |
Output is correct |
| 20 |
Correct |
0 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
336 KB |
Output is correct |
| 22 |
Correct |
0 ms |
336 KB |
Output is correct |
| 23 |
Correct |
0 ms |
336 KB |
Output is correct |
| 24 |
Correct |
0 ms |
336 KB |
Output is correct |
| 25 |
Correct |
0 ms |
336 KB |
Output is correct |
| 26 |
Correct |
0 ms |
336 KB |
Output is correct |
| 27 |
Correct |
4 ms |
336 KB |
Output is correct |
| 28 |
Correct |
3 ms |
336 KB |
Output is correct |
| 29 |
Correct |
3 ms |
336 KB |
Output is correct |
| 30 |
Correct |
6 ms |
336 KB |
Output is correct |
| 31 |
Correct |
3 ms |
336 KB |
Output is correct |
| 32 |
Correct |
4 ms |
336 KB |
Output is correct |
| 33 |
Correct |
7 ms |
336 KB |
Output is correct |
| 34 |
Correct |
17 ms |
380 KB |
Output is correct |
| 35 |
Correct |
9 ms |
408 KB |
Output is correct |
| 36 |
Correct |
3 ms |
336 KB |
Output is correct |
| 37 |
Correct |
7 ms |
364 KB |
Output is correct |
| 38 |
Correct |
7 ms |
388 KB |
Output is correct |
| 39 |
Correct |
5 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
251 ms |
612 KB |
Output is correct |
| 2 |
Correct |
255 ms |
668 KB |
Output is correct |
| 3 |
Correct |
239 ms |
584 KB |
Output is correct |
| 4 |
Correct |
230 ms |
584 KB |
Output is correct |
| 5 |
Correct |
171 ms |
656 KB |
Output is correct |
| 6 |
Correct |
187 ms |
540 KB |
Output is correct |
| 7 |
Correct |
407 ms |
768 KB |
Output is correct |
| 8 |
Correct |
905 ms |
640 KB |
Output is correct |
| 9 |
Correct |
463 ms |
668 KB |
Output is correct |
| 10 |
Correct |
452 ms |
672 KB |
Output is correct |
| 11 |
Correct |
485 ms |
548 KB |
Output is correct |
| 12 |
Correct |
188 ms |
628 KB |
Output is correct |
| 13 |
Correct |
182 ms |
676 KB |
Output is correct |
| 14 |
Correct |
269 ms |
608 KB |
Output is correct |
| 15 |
Correct |
224 ms |
604 KB |
Output is correct |
| 16 |
Correct |
307 ms |
644 KB |
Output is correct |
| 17 |
Correct |
465 ms |
664 KB |
Output is correct |
| 18 |
Correct |
228 ms |
628 KB |
Output is correct |
| 19 |
Correct |
245 ms |
632 KB |
Output is correct |
| 20 |
Correct |
316 ms |
612 KB |
Output is correct |
| 21 |
Correct |
253 ms |
628 KB |
Output is correct |
| 22 |
Correct |
240 ms |
624 KB |
Output is correct |
| 23 |
Correct |
281 ms |
608 KB |
Output is correct |
| 24 |
Correct |
261 ms |
620 KB |
Output is correct |
| 25 |
Correct |
250 ms |
628 KB |
Output is correct |
| 26 |
Correct |
245 ms |
604 KB |
Output is correct |
| 27 |
Correct |
232 ms |
540 KB |
Output is correct |
| 28 |
Correct |
581 ms |
676 KB |
Output is correct |
| 29 |
Correct |
444 ms |
548 KB |
Output is correct |
| 30 |
Correct |
458 ms |
668 KB |
Output is correct |
| 31 |
Correct |
456 ms |
548 KB |
Output is correct |
| 32 |
Correct |
709 ms |
744 KB |
Output is correct |
| 33 |
Correct |
392 ms |
644 KB |
Output is correct |
| 34 |
Correct |
4 ms |
336 KB |
Output is correct |
| 35 |
Correct |
3 ms |
336 KB |
Output is correct |
| 36 |
Correct |
3 ms |
336 KB |
Output is correct |
| 37 |
Correct |
3 ms |
336 KB |
Output is correct |
| 38 |
Correct |
6 ms |
388 KB |
Output is correct |
| 39 |
Correct |
4 ms |
380 KB |
Output is correct |
| 40 |
Correct |
7 ms |
336 KB |
Output is correct |
| 41 |
Correct |
9 ms |
336 KB |
Output is correct |
| 42 |
Correct |
8 ms |
336 KB |
Output is correct |
| 43 |
Correct |
3 ms |
368 KB |
Output is correct |
| 44 |
Correct |
7 ms |
336 KB |
Output is correct |
| 45 |
Correct |
11 ms |
384 KB |
Output is correct |
| 46 |
Correct |
5 ms |
336 KB |
Output is correct |
| 47 |
Correct |
1 ms |
336 KB |
Output is correct |
| 48 |
Correct |
1 ms |
336 KB |
Output is correct |
| 49 |
Correct |
1 ms |
336 KB |
Output is correct |
| 50 |
Correct |
1 ms |
336 KB |
Output is correct |
| 51 |
Correct |
0 ms |
336 KB |
Output is correct |
| 52 |
Correct |
0 ms |
336 KB |
Output is correct |
| 53 |
Correct |
1 ms |
336 KB |
Output is correct |
| 54 |
Correct |
0 ms |
336 KB |
Output is correct |
| 55 |
Correct |
1 ms |
336 KB |
Output is correct |
| 56 |
Correct |
1 ms |
336 KB |
Output is correct |
| 57 |
Correct |
0 ms |
336 KB |
Output is correct |
| 58 |
Correct |
0 ms |
336 KB |
Output is correct |
| 59 |
Correct |
0 ms |
336 KB |
Output is correct |
| 60 |
Correct |
0 ms |
336 KB |
Output is correct |
| 61 |
Correct |
1 ms |
336 KB |
Output is correct |
| 62 |
Correct |
1 ms |
336 KB |
Output is correct |
| 63 |
Correct |
0 ms |
336 KB |
Output is correct |
| 64 |
Correct |
0 ms |
336 KB |
Output is correct |
| 65 |
Correct |
0 ms |
336 KB |
Output is correct |
| 66 |
Correct |
0 ms |
336 KB |
Output is correct |
| 67 |
Correct |
1 ms |
336 KB |
Output is correct |
| 68 |
Correct |
1 ms |
336 KB |
Output is correct |
| 69 |
Correct |
0 ms |
336 KB |
Output is correct |
| 70 |
Correct |
0 ms |
336 KB |
Output is correct |
| 71 |
Correct |
0 ms |
336 KB |
Output is correct |
| 72 |
Correct |
0 ms |
336 KB |
Output is correct |
