#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
int query(int u, int v, int w) {
if(u == v) return u;
if(v == w) return v;
if(w == u) return w;
return Query(u, v, w);
}
void bridge(int u, int v) {
if(u > v) swap(u, v);
Bridge(u, v);
}
int D[2009][2009];
void go(vector<int> &S, int u) {
int N = S.size();
if(N == 1) return;
if(N == 2) {
bridge(S[0], S[1]);
return;
}
int tmp;
while(1) {
tmp = S[rand() % N];
if(tmp != u) break;
}
int v = tmp;
vector<bool> chk(N, 0);
map<int, vector<int> > mp;
vector<int> T, U, V;
for(auto& it: S) {
int Q = query(u, v, it);
mp[Q].push_back(it);
if(Q != u && Q != v) T.push_back(Q);
}
if(T.size()) {
sort(T.begin(), T.end(), [&](int X, int Y) {
if(D[X][Y] != -1) return D[X][Y];
int f = (query(u, X, Y) == X);
D[X][Y] = f; D[Y][X] = !f;
return f;
});
T.resize(unique(T.begin(), T.end()) - T.begin());
for(int i=1; i<T.size(); i++) bridge(T[i-1], T[i]);
bridge(u, T[0]); bridge(T.back(), v);
}
else bridge(u, v);
for(auto& it: mp) go(it.second, it.first);
}
void Solve(int N) {
srand(190702);
vector<int> S;
for(int i=0; i<N; i++) S.push_back(i);
for(int i=0; i<N; i++) {
for(int j=0; j<N; j++) {
if(i == j) D[i][j] = 0;
else D[i][j] = -1;
}
}
go(S, 0);
}
Compilation message
meetings.cpp: In function 'void go(std::vector<int>&, int)':
meetings.cpp:50:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=1; i<T.size(); i++) bridge(T[i-1], T[i]);
~^~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
248 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
248 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
2 ms |
376 KB |
Output is correct |
| 14 |
Correct |
2 ms |
504 KB |
Output is correct |
| 15 |
Correct |
3 ms |
504 KB |
Output is correct |
| 16 |
Correct |
2 ms |
632 KB |
Output is correct |
| 17 |
Correct |
2 ms |
504 KB |
Output is correct |
| 18 |
Correct |
2 ms |
632 KB |
Output is correct |
| 19 |
Correct |
2 ms |
504 KB |
Output is correct |
| 20 |
Correct |
2 ms |
632 KB |
Output is correct |
| 21 |
Correct |
2 ms |
632 KB |
Output is correct |
| 22 |
Correct |
2 ms |
504 KB |
Output is correct |
| 23 |
Correct |
2 ms |
504 KB |
Output is correct |
| 24 |
Correct |
2 ms |
504 KB |
Output is correct |
| 25 |
Correct |
2 ms |
504 KB |
Output is correct |
| 26 |
Correct |
2 ms |
632 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
248 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
376 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
2 ms |
376 KB |
Output is correct |
| 14 |
Correct |
2 ms |
504 KB |
Output is correct |
| 15 |
Correct |
3 ms |
504 KB |
Output is correct |
| 16 |
Correct |
2 ms |
632 KB |
Output is correct |
| 17 |
Correct |
2 ms |
504 KB |
Output is correct |
| 18 |
Correct |
2 ms |
632 KB |
Output is correct |
| 19 |
Correct |
2 ms |
504 KB |
Output is correct |
| 20 |
Correct |
2 ms |
632 KB |
Output is correct |
| 21 |
Correct |
2 ms |
632 KB |
Output is correct |
| 22 |
Correct |
2 ms |
504 KB |
Output is correct |
| 23 |
Correct |
2 ms |
504 KB |
Output is correct |
| 24 |
Correct |
2 ms |
504 KB |
Output is correct |
| 25 |
Correct |
2 ms |
504 KB |
Output is correct |
| 26 |
Correct |
2 ms |
632 KB |
Output is correct |
| 27 |
Correct |
9 ms |
2040 KB |
Output is correct |
| 28 |
Correct |
8 ms |
2040 KB |
Output is correct |
| 29 |
Correct |
8 ms |
2032 KB |
Output is correct |
| 30 |
Correct |
7 ms |
2040 KB |
Output is correct |
| 31 |
Correct |
7 ms |
2040 KB |
Output is correct |
| 32 |
Correct |
10 ms |
1912 KB |
Output is correct |
| 33 |
Correct |
15 ms |
2044 KB |
Output is correct |
| 34 |
Correct |
20 ms |
2040 KB |
Output is correct |
| 35 |
Correct |
18 ms |
2040 KB |
Output is correct |
| 36 |
Correct |
7 ms |
2040 KB |
Output is correct |
| 37 |
Correct |
12 ms |
2040 KB |
Output is correct |
| 38 |
Correct |
13 ms |
1916 KB |
Output is correct |
| 39 |
Correct |
9 ms |
1912 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
732 ms |
16572 KB |
Output is correct |
| 2 |
Correct |
682 ms |
16504 KB |
Output is correct |
| 3 |
Correct |
785 ms |
16304 KB |
Output is correct |
| 4 |
Correct |
690 ms |
16412 KB |
Output is correct |
| 5 |
Correct |
381 ms |
16420 KB |
Output is correct |
| 6 |
Correct |
347 ms |
16376 KB |
Output is correct |
| 7 |
Correct |
711 ms |
16552 KB |
Output is correct |
| 8 |
Correct |
846 ms |
16532 KB |
Output is correct |
| 9 |
Correct |
896 ms |
16448 KB |
Output is correct |
| 10 |
Correct |
822 ms |
16632 KB |
Output is correct |
| 11 |
Correct |
939 ms |
16632 KB |
Output is correct |
| 12 |
Correct |
461 ms |
16632 KB |
Output is correct |
| 13 |
Correct |
278 ms |
16460 KB |
Output is correct |
| 14 |
Correct |
541 ms |
16376 KB |
Output is correct |
| 15 |
Correct |
469 ms |
16376 KB |
Output is correct |
| 16 |
Correct |
526 ms |
16504 KB |
Output is correct |
| 17 |
Correct |
853 ms |
16552 KB |
Output is correct |
| 18 |
Correct |
454 ms |
16632 KB |
Output is correct |
| 19 |
Correct |
479 ms |
16504 KB |
Output is correct |
| 20 |
Correct |
555 ms |
16580 KB |
Output is correct |
| 21 |
Correct |
564 ms |
16376 KB |
Output is correct |
| 22 |
Correct |
607 ms |
16424 KB |
Output is correct |
| 23 |
Correct |
575 ms |
16504 KB |
Output is correct |
| 24 |
Correct |
506 ms |
16436 KB |
Output is correct |
| 25 |
Correct |
536 ms |
16404 KB |
Output is correct |
| 26 |
Correct |
542 ms |
16692 KB |
Output is correct |
| 27 |
Correct |
507 ms |
16376 KB |
Output is correct |
| 28 |
Correct |
977 ms |
16504 KB |
Output is correct |
| 29 |
Correct |
774 ms |
16440 KB |
Output is correct |
| 30 |
Correct |
801 ms |
16568 KB |
Output is correct |
| 31 |
Correct |
837 ms |
16508 KB |
Output is correct |
| 32 |
Correct |
1615 ms |
16632 KB |
Output is correct |
| 33 |
Correct |
971 ms |
16672 KB |
Output is correct |
| 34 |
Correct |
8 ms |
1912 KB |
Output is correct |
| 35 |
Correct |
9 ms |
1912 KB |
Output is correct |
| 36 |
Correct |
8 ms |
1912 KB |
Output is correct |
| 37 |
Correct |
7 ms |
1912 KB |
Output is correct |
| 38 |
Correct |
7 ms |
2088 KB |
Output is correct |
| 39 |
Correct |
10 ms |
2040 KB |
Output is correct |
| 40 |
Correct |
15 ms |
2168 KB |
Output is correct |
| 41 |
Correct |
18 ms |
1916 KB |
Output is correct |
| 42 |
Correct |
17 ms |
1912 KB |
Output is correct |
| 43 |
Correct |
7 ms |
2040 KB |
Output is correct |
| 44 |
Correct |
12 ms |
1912 KB |
Output is correct |
| 45 |
Correct |
13 ms |
1912 KB |
Output is correct |
| 46 |
Correct |
9 ms |
1912 KB |
Output is correct |
| 47 |
Correct |
2 ms |
504 KB |
Output is correct |
| 48 |
Correct |
2 ms |
504 KB |
Output is correct |
| 49 |
Correct |
2 ms |
504 KB |
Output is correct |
| 50 |
Correct |
2 ms |
632 KB |
Output is correct |
| 51 |
Correct |
2 ms |
504 KB |
Output is correct |
| 52 |
Correct |
2 ms |
504 KB |
Output is correct |
| 53 |
Correct |
2 ms |
504 KB |
Output is correct |
| 54 |
Correct |
2 ms |
504 KB |
Output is correct |
| 55 |
Correct |
2 ms |
632 KB |
Output is correct |
| 56 |
Correct |
2 ms |
632 KB |
Output is correct |
| 57 |
Correct |
2 ms |
632 KB |
Output is correct |
| 58 |
Correct |
2 ms |
552 KB |
Output is correct |
| 59 |
Correct |
2 ms |
504 KB |
Output is correct |
| 60 |
Correct |
2 ms |
376 KB |
Output is correct |
| 61 |
Correct |
2 ms |
376 KB |
Output is correct |
| 62 |
Correct |
2 ms |
376 KB |
Output is correct |
| 63 |
Correct |
2 ms |
376 KB |
Output is correct |
| 64 |
Correct |
2 ms |
376 KB |
Output is correct |
| 65 |
Correct |
2 ms |
376 KB |
Output is correct |
| 66 |
Correct |
2 ms |
376 KB |
Output is correct |
| 67 |
Correct |
2 ms |
376 KB |
Output is correct |
| 68 |
Correct |
2 ms |
376 KB |
Output is correct |
| 69 |
Correct |
2 ms |
376 KB |
Output is correct |
| 70 |
Correct |
2 ms |
376 KB |
Output is correct |
| 71 |
Correct |
2 ms |
376 KB |
Output is correct |
| 72 |
Correct |
2 ms |
376 KB |
Output is correct |
