#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
#define pii pair <int, int>
#define pb push_back
const int NN = 3005;
vector <int> g[NN];
int n;
vector <int> merge_sort(vector <int > ve, int x) {
if (ve.size() <= 1) return ve;
int mid = ((int)ve.size() - 1) / 2;
vector <int> vle, vri;
for (int i = 0; i <= mid; i++) {
vle.pb(ve[i]);
}
for (int i = mid + 1; i < ve.size(); i++) {
vri.pb(ve[i]);
}
vle = merge_sort(vle, x);
vri = merge_sort(vri, x);
int curl = 0, szl = vle.size(); int curr = 0, szr = vri.size();
vector <int> ans;
while (curl < szl || curr < szr) {
if (curl == szl) {
ans.pb(vri[curr]); curr++; continue;
}
if (curr == szr) {
ans.pb(vle[curl]); curl++; continue;
}
int result = Query(x,vle[curl],vri[curr]);
if (vle[curl] == result) {
ans.pb(vle[curl]); curl++;
} else ans.pb(vri[curr]), curr++;
}
vle.clear(); vri.clear();
return ans;
}
void go(vector <int> v) {
random_shuffle(v.begin(),v.end());
vector <int> sub[n + 5];
for (int i = 0; i < v.size(); i++) sub[v[i]].clear();
if (v.size() <= 1) return ;
if (v.size() == 2) {
g[min(v[0],v[1])].pb(max(v[0],v[1]));
return ;
}
int x = v[0]; int y = v[1];
sub[x].pb(x);
sub[y].pb(y);
vector <int> ve;
for (int i = 0; i < v.size(); i++) {
if (v[i] == x || v[i] == y) continue;
int result = Query(x,y,v[i]);
if (sub[result].size() == 0) ve.pb(result);
sub[result].pb(v[i]);
}
vector <int> res = merge_sort(ve,x);
vector <int> pv;
pv.pb(x); for (int x : res) pv.pb(x); pv.pb(y);
for (int i = 0; i < pv.size(); i++) {
if (i >= 1) g[min(pv[i - 1], pv[i])].pb(max(pv[i - 1], pv[i]));
go(sub[pv[i]]);
}
}
void Solve(int N) {
n = N;
vector <int> v;
for (int i = 0; i < n; i++) {
v.pb(i);
}
go(v);
for (int i = 0; i < n; i++) {
for (int to : g[i]) Bridge(i, to);
}
}
Compilation message
meetings.cpp: In function 'std::vector<int> merge_sort(std::vector<int>, int)':
meetings.cpp:20:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
20 | for (int i = mid + 1; i < ve.size(); i++) {
| ~~^~~~~~~~~~~
meetings.cpp: In function 'void go(std::vector<int>)':
meetings.cpp:46:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | for (int i = 0; i < v.size(); i++) sub[v[i]].clear();
| ~~^~~~~~~~~~
meetings.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
57 | for (int i = 0; i < v.size(); i++) {
| ~~^~~~~~~~~~
meetings.cpp:67:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
67 | for (int i = 0; i < pv.size(); i++) {
| ~~^~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
448 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
0 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
1 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 |
1 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 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
448 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
0 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
1 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 |
1 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 |
0 ms |
336 KB |
Output is correct |
18 |
Correct |
0 ms |
336 KB |
Output is correct |
19 |
Correct |
0 ms |
336 KB |
Output is correct |
20 |
Correct |
0 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 |
0 ms |
336 KB |
Output is correct |
24 |
Correct |
0 ms |
336 KB |
Output is correct |
25 |
Correct |
1 ms |
336 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 |
1 ms |
448 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
0 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Correct |
1 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 |
1 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 |
0 ms |
336 KB |
Output is correct |
18 |
Correct |
0 ms |
336 KB |
Output is correct |
19 |
Correct |
0 ms |
336 KB |
Output is correct |
20 |
Correct |
0 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 |
0 ms |
336 KB |
Output is correct |
24 |
Correct |
0 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 |
520 KB |
Output is correct |
28 |
Correct |
4 ms |
464 KB |
Output is correct |
29 |
Correct |
4 ms |
464 KB |
Output is correct |
30 |
Correct |
3 ms |
464 KB |
Output is correct |
31 |
Correct |
3 ms |
464 KB |
Output is correct |
32 |
Correct |
4 ms |
464 KB |
Output is correct |
33 |
Correct |
6 ms |
592 KB |
Output is correct |
34 |
Correct |
7 ms |
592 KB |
Output is correct |
35 |
Correct |
8 ms |
568 KB |
Output is correct |
36 |
Correct |
4 ms |
500 KB |
Output is correct |
37 |
Correct |
6 ms |
480 KB |
Output is correct |
38 |
Correct |
6 ms |
464 KB |
Output is correct |
39 |
Correct |
8 ms |
464 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
286 ms |
1392 KB |
Output is correct |
2 |
Correct |
326 ms |
1312 KB |
Output is correct |
3 |
Correct |
349 ms |
1472 KB |
Output is correct |
4 |
Correct |
305 ms |
1428 KB |
Output is correct |
5 |
Correct |
249 ms |
1156 KB |
Output is correct |
6 |
Correct |
259 ms |
1364 KB |
Output is correct |
7 |
Correct |
325 ms |
1556 KB |
Output is correct |
8 |
Correct |
353 ms |
1824 KB |
Output is correct |
9 |
Correct |
341 ms |
1936 KB |
Output is correct |
10 |
Correct |
333 ms |
1968 KB |
Output is correct |
11 |
Correct |
382 ms |
1780 KB |
Output is correct |
12 |
Correct |
280 ms |
1052 KB |
Output is correct |
13 |
Correct |
239 ms |
1352 KB |
Output is correct |
14 |
Correct |
251 ms |
1484 KB |
Output is correct |
15 |
Correct |
273 ms |
1608 KB |
Output is correct |
16 |
Correct |
273 ms |
1488 KB |
Output is correct |
17 |
Correct |
383 ms |
1888 KB |
Output is correct |
18 |
Correct |
276 ms |
1580 KB |
Output is correct |
19 |
Correct |
262 ms |
1524 KB |
Output is correct |
20 |
Correct |
280 ms |
1480 KB |
Output is correct |
21 |
Correct |
396 ms |
1780 KB |
Output is correct |
22 |
Correct |
311 ms |
1608 KB |
Output is correct |
23 |
Correct |
360 ms |
1608 KB |
Output is correct |
24 |
Correct |
340 ms |
1612 KB |
Output is correct |
25 |
Correct |
359 ms |
1572 KB |
Output is correct |
26 |
Correct |
346 ms |
1772 KB |
Output is correct |
27 |
Correct |
372 ms |
1564 KB |
Output is correct |
28 |
Correct |
426 ms |
1868 KB |
Output is correct |
29 |
Correct |
314 ms |
1812 KB |
Output is correct |
30 |
Correct |
375 ms |
1980 KB |
Output is correct |
31 |
Correct |
400 ms |
1880 KB |
Output is correct |
32 |
Correct |
423 ms |
1304 KB |
Output is correct |
33 |
Correct |
390 ms |
1472 KB |
Output is correct |
34 |
Correct |
4 ms |
464 KB |
Output is correct |
35 |
Correct |
4 ms |
464 KB |
Output is correct |
36 |
Correct |
5 ms |
532 KB |
Output is correct |
37 |
Correct |
4 ms |
464 KB |
Output is correct |
38 |
Correct |
3 ms |
464 KB |
Output is correct |
39 |
Correct |
4 ms |
464 KB |
Output is correct |
40 |
Correct |
6 ms |
592 KB |
Output is correct |
41 |
Correct |
7 ms |
592 KB |
Output is correct |
42 |
Correct |
8 ms |
720 KB |
Output is correct |
43 |
Correct |
3 ms |
464 KB |
Output is correct |
44 |
Correct |
5 ms |
464 KB |
Output is correct |
45 |
Correct |
6 ms |
464 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 |
0 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 |
0 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 |
384 KB |
Output is correct |
58 |
Correct |
0 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 |
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 |
1 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 |
0 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 |