#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
#define maxn 2005
#define all(x) x.begin(),x.end()
#define disc(x) sort(all(x));x.resize(unique(all(x))-x.begin());
mt19937 rng(218);
vector<int> sub[maxn];
void subtree(int rt,vector<int> nodes){
//printf("subtree %d: ",rt);
//for(int i:nodes)printf("%d ",i);
//printf("\n");
int n=nodes.size(),far;
do{
far=nodes[rng()%n];
}while(far==rt);
for(int i:nodes)sub[i].clear();
vector<int> line;
line.push_back(rt);
line.push_back(far);
sub[rt].push_back(rt);
sub[far].push_back(far);
for(int i:nodes){
if(i==rt||i==far)continue;
//printf("query: %d %d %d\n",rt,far,i);
int par=Query(rt,far,i);
line.push_back(par);
sub[par].push_back(i);
}
disc(line);
sort(all(line),[&](int a,int b){
if(a==rt)return true;
if(b==rt)return false;
return Query(rt,a,b)==a;
});
for(int i=1;i<line.size();++i){
if(line[i-1]<line[i])Bridge(line[i-1],line[i]);
else Bridge(line[i],line[i-1]);
}
for(int i:line){
if(sub[i].size()==1)continue;
subtree(i,sub[i]);
}
}
void Solve(int n){
vector<int> v;
for(int i=0;i<n;++i)v.push_back(i);
subtree(rng()%n,v);
}
Compilation message
meetings.cpp: In function 'void subtree(int, std::vector<int>)':
meetings.cpp:40:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
40 | for(int i=1;i<line.size();++i){
| ~^~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
0 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 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 |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 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 |
0 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 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 |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
336 KB |
Output is correct |
| 13 |
Correct |
0 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 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 |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
336 KB |
Output is correct |
| 22 |
Correct |
1 ms |
396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
336 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
464 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
336 KB |
Output is correct |
| 2 |
Correct |
0 ms |
336 KB |
Output is correct |
| 3 |
Correct |
0 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 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 |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
0 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
336 KB |
Output is correct |
| 13 |
Correct |
0 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 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 |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| 21 |
Correct |
1 ms |
336 KB |
Output is correct |
| 22 |
Correct |
1 ms |
396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
336 KB |
Output is correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Correct |
1 ms |
464 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| 27 |
Correct |
5 ms |
464 KB |
Output is correct |
| 28 |
Correct |
7 ms |
456 KB |
Output is correct |
| 29 |
Correct |
5 ms |
336 KB |
Output is correct |
| 30 |
Correct |
7 ms |
464 KB |
Output is correct |
| 31 |
Correct |
6 ms |
464 KB |
Output is correct |
| 32 |
Correct |
6 ms |
428 KB |
Output is correct |
| 33 |
Correct |
11 ms |
464 KB |
Output is correct |
| 34 |
Correct |
13 ms |
452 KB |
Output is correct |
| 35 |
Correct |
15 ms |
464 KB |
Output is correct |
| 36 |
Correct |
6 ms |
464 KB |
Output is correct |
| 37 |
Correct |
19 ms |
444 KB |
Output is correct |
| 38 |
Correct |
13 ms |
464 KB |
Output is correct |
| 39 |
Correct |
12 ms |
456 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
444 ms |
756 KB |
Output is correct |
| 2 |
Correct |
489 ms |
732 KB |
Output is correct |
| 3 |
Correct |
439 ms |
788 KB |
Output is correct |
| 4 |
Correct |
410 ms |
736 KB |
Output is correct |
| 5 |
Correct |
326 ms |
740 KB |
Output is correct |
| 6 |
Correct |
313 ms |
672 KB |
Output is correct |
| 7 |
Correct |
685 ms |
816 KB |
Output is correct |
| 8 |
Correct |
675 ms |
760 KB |
Output is correct |
| 9 |
Correct |
630 ms |
880 KB |
Output is correct |
| 10 |
Correct |
685 ms |
796 KB |
Output is correct |
| 11 |
Correct |
719 ms |
844 KB |
Output is correct |
| 12 |
Correct |
396 ms |
724 KB |
Output is correct |
| 13 |
Correct |
259 ms |
776 KB |
Output is correct |
| 14 |
Correct |
474 ms |
768 KB |
Output is correct |
| 15 |
Correct |
411 ms |
732 KB |
Output is correct |
| 16 |
Correct |
396 ms |
744 KB |
Output is correct |
| 17 |
Correct |
577 ms |
740 KB |
Output is correct |
| 18 |
Correct |
334 ms |
752 KB |
Output is correct |
| 19 |
Correct |
353 ms |
856 KB |
Output is correct |
| 20 |
Correct |
510 ms |
708 KB |
Output is correct |
| 21 |
Correct |
464 ms |
884 KB |
Output is correct |
| 22 |
Correct |
511 ms |
768 KB |
Output is correct |
| 23 |
Correct |
458 ms |
844 KB |
Output is correct |
| 24 |
Correct |
408 ms |
856 KB |
Output is correct |
| 25 |
Correct |
428 ms |
712 KB |
Output is correct |
| 26 |
Correct |
402 ms |
784 KB |
Output is correct |
| 27 |
Correct |
450 ms |
748 KB |
Output is correct |
| 28 |
Correct |
660 ms |
824 KB |
Output is correct |
| 29 |
Correct |
528 ms |
756 KB |
Output is correct |
| 30 |
Correct |
524 ms |
764 KB |
Output is correct |
| 31 |
Correct |
661 ms |
876 KB |
Output is correct |
| 32 |
Correct |
1111 ms |
848 KB |
Output is correct |
| 33 |
Correct |
465 ms |
944 KB |
Output is correct |
| 34 |
Correct |
4 ms |
428 KB |
Output is correct |
| 35 |
Correct |
4 ms |
436 KB |
Output is correct |
| 36 |
Correct |
4 ms |
336 KB |
Output is correct |
| 37 |
Correct |
6 ms |
404 KB |
Output is correct |
| 38 |
Correct |
5 ms |
336 KB |
Output is correct |
| 39 |
Correct |
6 ms |
464 KB |
Output is correct |
| 40 |
Correct |
11 ms |
472 KB |
Output is correct |
| 41 |
Correct |
12 ms |
472 KB |
Output is correct |
| 42 |
Correct |
11 ms |
436 KB |
Output is correct |
| 43 |
Correct |
5 ms |
464 KB |
Output is correct |
| 44 |
Correct |
14 ms |
460 KB |
Output is correct |
| 45 |
Correct |
10 ms |
464 KB |
Output is correct |
| 46 |
Correct |
10 ms |
464 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 |
1 ms |
336 KB |
Output is correct |
| 52 |
Correct |
1 ms |
336 KB |
Output is correct |
| 53 |
Correct |
1 ms |
336 KB |
Output is correct |
| 54 |
Correct |
1 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 |
1 ms |
336 KB |
Output is correct |
| 58 |
Correct |
1 ms |
336 KB |
Output is correct |
| 59 |
Correct |
1 ms |
336 KB |
Output is correct |
| 60 |
Correct |
1 ms |
336 KB |
Output is correct |
| 61 |
Correct |
0 ms |
336 KB |
Output is correct |
| 62 |
Correct |
0 ms |
336 KB |
Output is correct |
| 63 |
Correct |
0 ms |
336 KB |
Output is correct |
| 64 |
Correct |
1 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 |
0 ms |
336 KB |
Output is correct |
| 69 |
Correct |
1 ms |
336 KB |
Output is correct |
| 70 |
Correct |
1 ms |
336 KB |
Output is correct |
| 71 |
Correct |
1 ms |
336 KB |
Output is correct |
| 72 |
Correct |
0 ms |
336 KB |
Output is correct |
