#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
using pi = pair<int, int>;
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()
using lint = long long;
mt19937 rng(0x14004);
int randint(int lb, int ub){ return uniform_int_distribution<int>(lb, ub)(rng); }
void bridge(int x, int y){ Bridge(min(x, y), max(x, y)); }
map<lint, int> mp;
int query(lint x, lint y, lint z){
if(x > y) swap(x, y);
if(y > z) swap(y, z);
if(x > y) swap(x, y);
lint qq = (x << 40) | (y << 20) | z;
if(mp.find(qq) != mp.end()) return mp[qq];
return mp[qq] = Query(x, y, z);
}
void dfs(vector<int> v){
if(v.size() == 1) return;
if(v.size() == 2){
bridge(v[0], v[1]);
return;
}
shuffle(v.begin()+1, v.end(), rng);
vector<pi> ords;
vector<int> fuck = {v[0]};
ords.emplace_back(v[1], v[1]);
for(int i=2; i<v.size(); i++){
int q = query(v[0], v[1], v[i]);
if(q == v[0]) fuck.push_back(v[i]);
else ords.emplace_back(q, v[i]);
}
sort(ords.begin(), ords.end(), [&](pi a, pi b){
if(a.first != b.first) return query(v[0], a.first, b.first) == a.first;
return a.second < b.second;
});
if(sz(ords)) bridge(v[0], ords[0].first);
for(int i = 0; i < sz(ords); ){
int e = i;
vector<int> w;
while(e < sz(ords) && ords[i].first == ords[e].first){
w.push_back(ords[e++].second);
}
swap(w[0], *find(all(w), ords[i].first));
dfs(w);
if(e < sz(ords)) bridge(ords[i].first, ords[e].first);
i = e;
}
dfs(fuck);
}
void Solve(int N) {
vector<int> v(N);
iota(v.begin(), v.end(), 0);
dfs(v);
}
Compilation message
meetings.cpp: In function 'void dfs(std::vector<int>)':
meetings.cpp:33:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
33 | for(int i=2; i<v.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 |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
0 ms |
336 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 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 |
1 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 |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
0 ms |
336 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 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 |
1 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 |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
0 ms |
336 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 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 |
1 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 |
5 ms |
464 KB |
Output is correct |
28 |
Correct |
4 ms |
464 KB |
Output is correct |
29 |
Correct |
6 ms |
464 KB |
Output is correct |
30 |
Correct |
3 ms |
464 KB |
Output is correct |
31 |
Correct |
4 ms |
464 KB |
Output is correct |
32 |
Correct |
7 ms |
464 KB |
Output is correct |
33 |
Correct |
9 ms |
592 KB |
Output is correct |
34 |
Correct |
11 ms |
620 KB |
Output is correct |
35 |
Correct |
10 ms |
592 KB |
Output is correct |
36 |
Correct |
4 ms |
464 KB |
Output is correct |
37 |
Correct |
9 ms |
464 KB |
Output is correct |
38 |
Correct |
11 ms |
448 KB |
Output is correct |
39 |
Correct |
7 ms |
464 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
319 ms |
1444 KB |
Output is correct |
2 |
Correct |
281 ms |
1444 KB |
Output is correct |
3 |
Correct |
391 ms |
1472 KB |
Output is correct |
4 |
Correct |
393 ms |
1560 KB |
Output is correct |
5 |
Correct |
222 ms |
1172 KB |
Output is correct |
6 |
Correct |
226 ms |
1388 KB |
Output is correct |
7 |
Correct |
403 ms |
2248 KB |
Output is correct |
8 |
Correct |
466 ms |
2648 KB |
Output is correct |
9 |
Correct |
484 ms |
2892 KB |
Output is correct |
10 |
Correct |
422 ms |
2740 KB |
Output is correct |
11 |
Correct |
593 ms |
2996 KB |
Output is correct |
12 |
Correct |
394 ms |
1464 KB |
Output is correct |
13 |
Correct |
203 ms |
1140 KB |
Output is correct |
14 |
Correct |
309 ms |
1808 KB |
Output is correct |
15 |
Correct |
280 ms |
1732 KB |
Output is correct |
16 |
Correct |
365 ms |
1904 KB |
Output is correct |
17 |
Correct |
619 ms |
3292 KB |
Output is correct |
18 |
Correct |
383 ms |
1692 KB |
Output is correct |
19 |
Correct |
326 ms |
1616 KB |
Output is correct |
20 |
Correct |
346 ms |
1824 KB |
Output is correct |
21 |
Correct |
329 ms |
1776 KB |
Output is correct |
22 |
Correct |
350 ms |
1836 KB |
Output is correct |
23 |
Correct |
351 ms |
1880 KB |
Output is correct |
24 |
Correct |
348 ms |
2004 KB |
Output is correct |
25 |
Correct |
440 ms |
1796 KB |
Output is correct |
26 |
Correct |
392 ms |
1852 KB |
Output is correct |
27 |
Correct |
443 ms |
1628 KB |
Output is correct |
28 |
Correct |
603 ms |
3104 KB |
Output is correct |
29 |
Correct |
385 ms |
2784 KB |
Output is correct |
30 |
Correct |
413 ms |
2740 KB |
Output is correct |
31 |
Correct |
427 ms |
2928 KB |
Output is correct |
32 |
Correct |
781 ms |
2360 KB |
Output is correct |
33 |
Correct |
815 ms |
2332 KB |
Output is correct |
34 |
Correct |
6 ms |
464 KB |
Output is correct |
35 |
Correct |
5 ms |
464 KB |
Output is correct |
36 |
Correct |
5 ms |
496 KB |
Output is correct |
37 |
Correct |
3 ms |
464 KB |
Output is correct |
38 |
Correct |
3 ms |
464 KB |
Output is correct |
39 |
Correct |
7 ms |
464 KB |
Output is correct |
40 |
Correct |
9 ms |
592 KB |
Output is correct |
41 |
Correct |
10 ms |
684 KB |
Output is correct |
42 |
Correct |
13 ms |
596 KB |
Output is correct |
43 |
Correct |
6 ms |
464 KB |
Output is correct |
44 |
Correct |
10 ms |
464 KB |
Output is correct |
45 |
Correct |
10 ms |
520 KB |
Output is correct |
46 |
Correct |
8 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 |
340 KB |
Output is correct |
51 |
Correct |
0 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 |
1 ms |
336 KB |
Output is correct |
62 |
Correct |
1 ms |
336 KB |
Output is correct |
63 |
Correct |
1 ms |
336 KB |
Output is correct |
64 |
Correct |
1 ms |
336 KB |
Output is correct |
65 |
Correct |
1 ms |
336 KB |
Output is correct |
66 |
Correct |
1 ms |
336 KB |
Output is correct |
67 |
Correct |
0 ms |
336 KB |
Output is correct |
68 |
Correct |
1 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 |
0 ms |
336 KB |
Output is correct |
72 |
Correct |
0 ms |
336 KB |
Output is correct |