#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int maxn = 2e3 + 5;
using ii = pair<int, int>;
int n;
set<ii> ans;
unordered_map<int, unordered_map<int, unordered_map<int, int>>> mem;
int ask(int u, int v, int w) {
{
int mn = min({u, v, w});
int mx = max({u, v, w});
int md = u + v + w - mn - mx;
u = mn, v = md, w = mx;
}
if(u == v or v == w) return v;
if(mem[u][v].find(w) == mem[u][v].end()) return mem[u][v][w] = Query(u, v, w);
else return mem[u][v][w];
}
void add_edge(int u, int v) {
if(u > v) swap(u, v);
ans.insert(ii(u, v));
}
void solve(vector<int> &s) {
if(s.size() < 2) return;
if(s.size() == 2) {
add_edge(s[0], s[1]);
return;
}
shuffle(s.begin(), s.end(), rng);
set<int> path_nodes;
unordered_map<int, int> mp;
int p = s[0], q = s[1];
for(int u : s) {
mp[u] = ask(p, q, u);
path_nodes.insert(mp[u]);
}
path_nodes.erase(p);
path_nodes.erase(q);
vector<int> path(path_nodes.begin(), path_nodes.end());
shuffle(path.begin(), path.end(), rng);
sort(path.begin(), path.end(), [&](int u, int v){ return ask(p, u, v) == u; });
for(int i = 1; i < path.size(); i++) {
add_edge(path[i - 1], path[i]);
}
if(path.size()) {
add_edge(path[0], p);
add_edge(path.back(), q);
} else add_edge(p, q);
unordered_map<int, vector<int>> to;
for(auto i : mp) {
to[i.second].emplace_back(i.first);
}
for(auto i : to) {
solve(i.second);
}
}
void Solve(int N) {
vector<int> v(N);
iota(v.begin(), v.end(), 0);
solve(v);
for(ii i : ans) Bridge(i.first, i.second);
}
Compilation message
meetings.cpp: In function 'void solve(std::vector<int>&)':
meetings.cpp:49:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
49 | for(int i = 1; i < path.size(); i++) {
| ~~^~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 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 |
0 ms |
336 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 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 |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 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 |
0 ms |
336 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 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 |
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 |
336 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 |
336 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 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 |
0 ms |
336 KB |
Output is correct |
| 5 |
Correct |
0 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 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 |
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 |
336 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 |
336 KB |
Output is correct |
| 26 |
Correct |
1 ms |
336 KB |
Output is correct |
| 27 |
Correct |
4 ms |
592 KB |
Output is correct |
| 28 |
Correct |
6 ms |
568 KB |
Output is correct |
| 29 |
Correct |
6 ms |
724 KB |
Output is correct |
| 30 |
Correct |
5 ms |
592 KB |
Output is correct |
| 31 |
Correct |
4 ms |
592 KB |
Output is correct |
| 32 |
Correct |
7 ms |
720 KB |
Output is correct |
| 33 |
Correct |
9 ms |
848 KB |
Output is correct |
| 34 |
Correct |
9 ms |
848 KB |
Output is correct |
| 35 |
Correct |
9 ms |
820 KB |
Output is correct |
| 36 |
Correct |
4 ms |
592 KB |
Output is correct |
| 37 |
Correct |
8 ms |
720 KB |
Output is correct |
| 38 |
Correct |
8 ms |
720 KB |
Output is correct |
| 39 |
Correct |
9 ms |
592 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
313 ms |
2908 KB |
Output is correct |
| 2 |
Correct |
342 ms |
2988 KB |
Output is correct |
| 3 |
Correct |
349 ms |
3656 KB |
Output is correct |
| 4 |
Correct |
370 ms |
3536 KB |
Output is correct |
| 5 |
Correct |
273 ms |
2656 KB |
Output is correct |
| 6 |
Correct |
247 ms |
2632 KB |
Output is correct |
| 7 |
Correct |
346 ms |
3968 KB |
Output is correct |
| 8 |
Correct |
372 ms |
4652 KB |
Output is correct |
| 9 |
Correct |
370 ms |
5152 KB |
Output is correct |
| 10 |
Correct |
337 ms |
5224 KB |
Output is correct |
| 11 |
Correct |
409 ms |
5140 KB |
Output is correct |
| 12 |
Correct |
337 ms |
2760 KB |
Output is correct |
| 13 |
Correct |
240 ms |
3096 KB |
Output is correct |
| 14 |
Correct |
284 ms |
3348 KB |
Output is correct |
| 15 |
Correct |
240 ms |
3076 KB |
Output is correct |
| 16 |
Correct |
359 ms |
4068 KB |
Output is correct |
| 17 |
Correct |
366 ms |
4740 KB |
Output is correct |
| 18 |
Correct |
220 ms |
3164 KB |
Output is correct |
| 19 |
Correct |
310 ms |
3528 KB |
Output is correct |
| 20 |
Correct |
297 ms |
3212 KB |
Output is correct |
| 21 |
Correct |
303 ms |
3016 KB |
Output is correct |
| 22 |
Correct |
343 ms |
3552 KB |
Output is correct |
| 23 |
Correct |
323 ms |
3240 KB |
Output is correct |
| 24 |
Correct |
274 ms |
3052 KB |
Output is correct |
| 25 |
Correct |
356 ms |
3612 KB |
Output is correct |
| 26 |
Correct |
375 ms |
3720 KB |
Output is correct |
| 27 |
Correct |
345 ms |
3344 KB |
Output is correct |
| 28 |
Correct |
409 ms |
4808 KB |
Output is correct |
| 29 |
Correct |
321 ms |
4680 KB |
Output is correct |
| 30 |
Correct |
350 ms |
4896 KB |
Output is correct |
| 31 |
Correct |
397 ms |
4936 KB |
Output is correct |
| 32 |
Correct |
516 ms |
3540 KB |
Output is correct |
| 33 |
Correct |
629 ms |
2816 KB |
Output is correct |
| 34 |
Correct |
4 ms |
592 KB |
Output is correct |
| 35 |
Correct |
4 ms |
592 KB |
Output is correct |
| 36 |
Correct |
5 ms |
592 KB |
Output is correct |
| 37 |
Correct |
4 ms |
592 KB |
Output is correct |
| 38 |
Correct |
4 ms |
592 KB |
Output is correct |
| 39 |
Correct |
6 ms |
776 KB |
Output is correct |
| 40 |
Correct |
9 ms |
932 KB |
Output is correct |
| 41 |
Correct |
12 ms |
924 KB |
Output is correct |
| 42 |
Correct |
8 ms |
976 KB |
Output is correct |
| 43 |
Correct |
4 ms |
592 KB |
Output is correct |
| 44 |
Correct |
8 ms |
720 KB |
Output is correct |
| 45 |
Correct |
8 ms |
720 KB |
Output is correct |
| 46 |
Correct |
8 ms |
720 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 |
0 ms |
336 KB |
Output is correct |
| 61 |
Correct |
0 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 |
1 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 |
1 ms |
336 KB |
Output is correct |
| 71 |
Correct |
0 ms |
336 KB |
Output is correct |
| 72 |
Correct |
0 ms |
336 KB |
Output is correct |
