#include <iostream>
#include <vector>
#include <map>
#include <tuple>
#include <random>
#include <cassert>
#include <numeric>
#include <algorithm>
#include "meetings.h"
using namespace std;
#define f first
#define s second
vector<pair<int, int>> ans;
mt19937 rd(4315143);
int query(int x, int y, int z) {
if (x == y || x == z) return x;
if (y == z) return y;
return Query(x, y, z);
}
void solve(vector<int> v) {
if (v.size() <= 1) return;
shuffle(v.begin(), v.end(), rd);
int x = v[0], y = v[1];
for (int i = 2, ret; i < v.size(); i++) {
ret = query(x, y, v[i]);
if (ret == x) {
x = v[i];
} else if (ret == y) {
y = v[i];
}
}
map<int, vector<int>> groups;
for (int i = 0, ret; i < v.size(); i++) {
if (v[i] == x || v[i] == y) continue;
ret = query(x, y, v[i]);
groups[ret].push_back(v[i]);
}
vector<int> curr;
curr.push_back(x);
curr.push_back(y);
for (pair<int, vector<int>> g : groups) {
curr.push_back(g.f);
}
sort(curr.begin(), curr.end(), [&] (int a, int b) {
int ret = query(x, a, b);
return ret == a;
});
for (int i = 0; i < curr.size() - 1; i++) {
ans.push_back({curr[i], curr[i + 1]});
}
for (pair<int, vector<int>> g : groups) {
solve(g.s);
}
}
void Solve(int N) {
vector<int> tmp(N);
iota(tmp.begin(), tmp.end(), 0);
solve(tmp);
for (auto [x, y] : ans) {
assert(x != y);
if (y < x) swap(x, y);
Bridge(x, y);
}
}
Compilation message
meetings.cpp: In function 'void solve(std::vector<int>)':
meetings.cpp:28:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
28 | for (int i = 2, ret; i < v.size(); i++) {
| ~~^~~~~~~~~~
meetings.cpp:37:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
37 | for (int i = 0, ret; i < v.size(); i++) {
| ~~^~~~~~~~~~
meetings.cpp:52:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
52 | for (int i = 0; i < curr.size() - 1; i++) {
| ~~^~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
560 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
508 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
504 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
504 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
560 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
508 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
504 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
504 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
1 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
500 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
1 ms |
500 KB |
Output is correct |
19 |
Correct |
1 ms |
344 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
344 KB |
Output is correct |
22 |
Correct |
1 ms |
484 KB |
Output is correct |
23 |
Correct |
1 ms |
344 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
344 KB |
Output is correct |
26 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
560 KB |
Output is correct |
3 |
Correct |
1 ms |
344 KB |
Output is correct |
4 |
Correct |
1 ms |
508 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
504 KB |
Output is correct |
8 |
Correct |
0 ms |
344 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
0 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
0 ms |
504 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
1 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
500 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
1 ms |
500 KB |
Output is correct |
19 |
Correct |
1 ms |
344 KB |
Output is correct |
20 |
Correct |
1 ms |
344 KB |
Output is correct |
21 |
Correct |
1 ms |
344 KB |
Output is correct |
22 |
Correct |
1 ms |
484 KB |
Output is correct |
23 |
Correct |
1 ms |
344 KB |
Output is correct |
24 |
Correct |
1 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
344 KB |
Output is correct |
26 |
Correct |
0 ms |
344 KB |
Output is correct |
27 |
Correct |
6 ms |
344 KB |
Output is correct |
28 |
Correct |
5 ms |
344 KB |
Output is correct |
29 |
Correct |
6 ms |
344 KB |
Output is correct |
30 |
Correct |
7 ms |
344 KB |
Output is correct |
31 |
Correct |
5 ms |
344 KB |
Output is correct |
32 |
Correct |
8 ms |
480 KB |
Output is correct |
33 |
Correct |
14 ms |
344 KB |
Output is correct |
34 |
Correct |
16 ms |
508 KB |
Output is correct |
35 |
Correct |
16 ms |
516 KB |
Output is correct |
36 |
Correct |
5 ms |
504 KB |
Output is correct |
37 |
Correct |
16 ms |
344 KB |
Output is correct |
38 |
Correct |
15 ms |
344 KB |
Output is correct |
39 |
Correct |
13 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
352 ms |
716 KB |
Output is correct |
2 |
Correct |
322 ms |
712 KB |
Output is correct |
3 |
Correct |
569 ms |
600 KB |
Output is correct |
4 |
Correct |
422 ms |
900 KB |
Output is correct |
5 |
Correct |
312 ms |
848 KB |
Output is correct |
6 |
Correct |
322 ms |
680 KB |
Output is correct |
7 |
Correct |
518 ms |
728 KB |
Output is correct |
8 |
Correct |
708 ms |
772 KB |
Output is correct |
9 |
Correct |
678 ms |
972 KB |
Output is correct |
10 |
Correct |
599 ms |
1016 KB |
Output is correct |
11 |
Correct |
648 ms |
776 KB |
Output is correct |
12 |
Correct |
297 ms |
828 KB |
Output is correct |
13 |
Correct |
174 ms |
756 KB |
Output is correct |
14 |
Correct |
310 ms |
912 KB |
Output is correct |
15 |
Correct |
415 ms |
672 KB |
Output is correct |
16 |
Correct |
374 ms |
740 KB |
Output is correct |
17 |
Correct |
556 ms |
772 KB |
Output is correct |
18 |
Correct |
305 ms |
736 KB |
Output is correct |
19 |
Correct |
377 ms |
724 KB |
Output is correct |
20 |
Correct |
379 ms |
948 KB |
Output is correct |
21 |
Correct |
541 ms |
976 KB |
Output is correct |
22 |
Correct |
336 ms |
852 KB |
Output is correct |
23 |
Correct |
312 ms |
656 KB |
Output is correct |
24 |
Correct |
401 ms |
660 KB |
Output is correct |
25 |
Correct |
413 ms |
600 KB |
Output is correct |
26 |
Correct |
400 ms |
720 KB |
Output is correct |
27 |
Correct |
329 ms |
920 KB |
Output is correct |
28 |
Correct |
740 ms |
848 KB |
Output is correct |
29 |
Correct |
489 ms |
748 KB |
Output is correct |
30 |
Correct |
562 ms |
860 KB |
Output is correct |
31 |
Correct |
578 ms |
960 KB |
Output is correct |
32 |
Correct |
1004 ms |
996 KB |
Output is correct |
33 |
Correct |
762 ms |
996 KB |
Output is correct |
34 |
Correct |
6 ms |
344 KB |
Output is correct |
35 |
Correct |
5 ms |
344 KB |
Output is correct |
36 |
Correct |
9 ms |
344 KB |
Output is correct |
37 |
Correct |
10 ms |
532 KB |
Output is correct |
38 |
Correct |
8 ms |
344 KB |
Output is correct |
39 |
Correct |
9 ms |
524 KB |
Output is correct |
40 |
Correct |
10 ms |
344 KB |
Output is correct |
41 |
Correct |
16 ms |
532 KB |
Output is correct |
42 |
Correct |
15 ms |
344 KB |
Output is correct |
43 |
Correct |
7 ms |
344 KB |
Output is correct |
44 |
Correct |
16 ms |
344 KB |
Output is correct |
45 |
Correct |
12 ms |
556 KB |
Output is correct |
46 |
Correct |
12 ms |
560 KB |
Output is correct |
47 |
Correct |
1 ms |
344 KB |
Output is correct |
48 |
Correct |
1 ms |
344 KB |
Output is correct |
49 |
Correct |
1 ms |
344 KB |
Output is correct |
50 |
Correct |
1 ms |
344 KB |
Output is correct |
51 |
Correct |
1 ms |
344 KB |
Output is correct |
52 |
Correct |
1 ms |
512 KB |
Output is correct |
53 |
Correct |
0 ms |
344 KB |
Output is correct |
54 |
Correct |
1 ms |
344 KB |
Output is correct |
55 |
Correct |
1 ms |
344 KB |
Output is correct |
56 |
Correct |
1 ms |
504 KB |
Output is correct |
57 |
Correct |
1 ms |
516 KB |
Output is correct |
58 |
Correct |
1 ms |
344 KB |
Output is correct |
59 |
Correct |
1 ms |
344 KB |
Output is correct |
60 |
Correct |
0 ms |
344 KB |
Output is correct |
61 |
Correct |
0 ms |
344 KB |
Output is correct |
62 |
Correct |
0 ms |
344 KB |
Output is correct |
63 |
Correct |
1 ms |
344 KB |
Output is correct |
64 |
Correct |
0 ms |
344 KB |
Output is correct |
65 |
Correct |
0 ms |
344 KB |
Output is correct |
66 |
Correct |
1 ms |
344 KB |
Output is correct |
67 |
Correct |
1 ms |
504 KB |
Output is correct |
68 |
Correct |
0 ms |
344 KB |
Output is correct |
69 |
Correct |
1 ms |
480 KB |
Output is correct |
70 |
Correct |
1 ms |
344 KB |
Output is correct |
71 |
Correct |
1 ms |
344 KB |
Output is correct |
72 |
Correct |
0 ms |
344 KB |
Output is correct |