#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
//helper functions
#define sz(v) int(v.size())
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rnd(int l, int r){
return uniform_int_distribution<int>(l, r)(rng);
}
int qry(int a, int b, int c) {
// cerr << "qry: " << a << ' ' << b << ' ' << c << endl;
assert(a != b && b != c && a != c);
return Query(a, b, c);
}
void upd(int a, int b) {
if (a >= b) swap(a, b);
// cerr << "upd: " << a << ' ' << b << endl;
Bridge(a, b);
}
//end helper functions
int n;
void rec(int root, vector<int> cand) {
if (sz(cand) == 0) return;
if (sz(cand) == 1) {
upd(root, cand[0]);
return;
}
int m = sz(cand);
int end = cand[rnd(0, m-1)];
// cerr << "root, end: " << root << ' ' << end << endl;
vector<int> repr(m), path;
for (int i = 0; i < m; i++) {
repr[i] = cand[i] == end ? end : qry(root, end, cand[i]);
if (repr[i] == cand[i] && cand[i] != end) { //on path
path.push_back(cand[i]);
}
}
sort(path.begin(), path.end(), [&](int a, int b){
return qry(root, a, b) == a;
});
path.insert(path.begin(), root);
path.push_back(end);
// cerr << "path: "; for (auto v : path) cerr << v << ' '; cerr << endl;
for (int i = 1; i < sz(path); i++)
upd(path[i-1], path[i]);
map<int, int> loc;
for (int i = 0; i < sz(path); i++) loc[path[i]] = i;
vector<vector<int>> nxt(sz(path));
for (int i = 0; i < m; i++) {
if (repr[i] != cand[i]) {
nxt[loc[repr[i]]].push_back(cand[i]);
}
}
for (int i = 0; i < sz(nxt); i++) {
rec(path[i], nxt[i]);
}
}
void Solve(int _n) {
n = _n;
vector<int> al(n); iota(al.begin(), al.end(), 0);
int root = rnd(0, n-1);
// cerr << root << endl;
al.erase(find(al.begin(), al.end(), root));
rec(root, al);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
364 KB |
Output is correct |
| 26 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
364 KB |
Output is correct |
| 26 |
Correct |
1 ms |
364 KB |
Output is correct |
| 27 |
Correct |
7 ms |
364 KB |
Output is correct |
| 28 |
Correct |
7 ms |
364 KB |
Output is correct |
| 29 |
Correct |
9 ms |
364 KB |
Output is correct |
| 30 |
Correct |
7 ms |
364 KB |
Output is correct |
| 31 |
Correct |
7 ms |
364 KB |
Output is correct |
| 32 |
Correct |
9 ms |
364 KB |
Output is correct |
| 33 |
Correct |
14 ms |
492 KB |
Output is correct |
| 34 |
Correct |
19 ms |
620 KB |
Output is correct |
| 35 |
Correct |
16 ms |
492 KB |
Output is correct |
| 36 |
Correct |
6 ms |
364 KB |
Output is correct |
| 37 |
Correct |
10 ms |
492 KB |
Output is correct |
| 38 |
Correct |
11 ms |
492 KB |
Output is correct |
| 39 |
Correct |
10 ms |
492 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
504 ms |
808 KB |
Output is correct |
| 2 |
Correct |
687 ms |
748 KB |
Output is correct |
| 3 |
Correct |
600 ms |
876 KB |
Output is correct |
| 4 |
Correct |
588 ms |
748 KB |
Output is correct |
| 5 |
Correct |
439 ms |
620 KB |
Output is correct |
| 6 |
Correct |
434 ms |
876 KB |
Output is correct |
| 7 |
Correct |
838 ms |
876 KB |
Output is correct |
| 8 |
Correct |
926 ms |
828 KB |
Output is correct |
| 9 |
Correct |
866 ms |
896 KB |
Output is correct |
| 10 |
Correct |
854 ms |
836 KB |
Output is correct |
| 11 |
Correct |
994 ms |
748 KB |
Output is correct |
| 12 |
Correct |
391 ms |
800 KB |
Output is correct |
| 13 |
Correct |
422 ms |
876 KB |
Output is correct |
| 14 |
Correct |
622 ms |
676 KB |
Output is correct |
| 15 |
Correct |
536 ms |
748 KB |
Output is correct |
| 16 |
Correct |
533 ms |
760 KB |
Output is correct |
| 17 |
Correct |
848 ms |
836 KB |
Output is correct |
| 18 |
Correct |
597 ms |
748 KB |
Output is correct |
| 19 |
Correct |
448 ms |
700 KB |
Output is correct |
| 20 |
Correct |
651 ms |
784 KB |
Output is correct |
| 21 |
Correct |
687 ms |
748 KB |
Output is correct |
| 22 |
Correct |
616 ms |
760 KB |
Output is correct |
| 23 |
Correct |
658 ms |
748 KB |
Output is correct |
| 24 |
Correct |
593 ms |
748 KB |
Output is correct |
| 25 |
Correct |
594 ms |
748 KB |
Output is correct |
| 26 |
Correct |
560 ms |
876 KB |
Output is correct |
| 27 |
Correct |
561 ms |
660 KB |
Output is correct |
| 28 |
Correct |
1144 ms |
872 KB |
Output is correct |
| 29 |
Correct |
884 ms |
1004 KB |
Output is correct |
| 30 |
Correct |
886 ms |
944 KB |
Output is correct |
| 31 |
Correct |
897 ms |
1172 KB |
Output is correct |
| 32 |
Correct |
1331 ms |
1060 KB |
Output is correct |
| 33 |
Correct |
1063 ms |
876 KB |
Output is correct |
| 34 |
Correct |
7 ms |
364 KB |
Output is correct |
| 35 |
Correct |
7 ms |
364 KB |
Output is correct |
| 36 |
Correct |
9 ms |
364 KB |
Output is correct |
| 37 |
Correct |
8 ms |
364 KB |
Output is correct |
| 38 |
Correct |
6 ms |
364 KB |
Output is correct |
| 39 |
Correct |
9 ms |
364 KB |
Output is correct |
| 40 |
Correct |
15 ms |
492 KB |
Output is correct |
| 41 |
Correct |
18 ms |
492 KB |
Output is correct |
| 42 |
Correct |
16 ms |
492 KB |
Output is correct |
| 43 |
Correct |
6 ms |
364 KB |
Output is correct |
| 44 |
Correct |
13 ms |
492 KB |
Output is correct |
| 45 |
Correct |
15 ms |
492 KB |
Output is correct |
| 46 |
Correct |
11 ms |
492 KB |
Output is correct |
| 47 |
Correct |
1 ms |
364 KB |
Output is correct |
| 48 |
Correct |
1 ms |
364 KB |
Output is correct |
| 49 |
Correct |
1 ms |
364 KB |
Output is correct |
| 50 |
Correct |
1 ms |
364 KB |
Output is correct |
| 51 |
Correct |
1 ms |
364 KB |
Output is correct |
| 52 |
Correct |
1 ms |
364 KB |
Output is correct |
| 53 |
Correct |
1 ms |
364 KB |
Output is correct |
| 54 |
Correct |
1 ms |
364 KB |
Output is correct |
| 55 |
Correct |
1 ms |
364 KB |
Output is correct |
| 56 |
Correct |
1 ms |
364 KB |
Output is correct |
| 57 |
Correct |
1 ms |
364 KB |
Output is correct |
| 58 |
Correct |
1 ms |
364 KB |
Output is correct |
| 59 |
Correct |
1 ms |
364 KB |
Output is correct |
| 60 |
Correct |
1 ms |
364 KB |
Output is correct |
| 61 |
Correct |
1 ms |
364 KB |
Output is correct |
| 62 |
Correct |
1 ms |
364 KB |
Output is correct |
| 63 |
Correct |
1 ms |
364 KB |
Output is correct |
| 64 |
Correct |
1 ms |
364 KB |
Output is correct |
| 65 |
Correct |
1 ms |
364 KB |
Output is correct |
| 66 |
Correct |
1 ms |
364 KB |
Output is correct |
| 67 |
Correct |
1 ms |
364 KB |
Output is correct |
| 68 |
Correct |
1 ms |
364 KB |
Output is correct |
| 69 |
Correct |
1 ms |
364 KB |
Output is correct |
| 70 |
Correct |
1 ms |
364 KB |
Output is correct |
| 71 |
Correct |
1 ms |
364 KB |
Output is correct |
| 72 |
Correct |
1 ms |
364 KB |
Output is correct |
