#include <bits/stdc++.h>
#include "meetings.h"
//~ #include "grader.cpp"
using namespace std;
const int maxn = 2001;
int n, dep[maxn];
vector <int> p, pans, v[maxn];
int asked = 0;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
void dfsz(int node){
for(auto &i : v[node]){
dep[i] = dep[node] + 1;
dfsz(i);
}
}
int LCA(int a, int b){
if(a == b) return a;
if(a == 0 || b == 0) return 0;
return Query(0, a, b);
}
void solve(vector <int> a){
if(a.size() <= 1) return;
shuffle(a.begin(), a.end(), rng);
int leaf = -1;
for(auto &i : a){
leaf = i;
break;
}
if(leaf == -1) return;
vector <int> q(n + 1);
vector <int> anc;
for(auto &i : a){
q[i] = LCA(i, leaf);
anc.push_back(q[i]);
}
sort(anc.begin(), anc.end());
anc.resize(unique(anc.begin(), anc.end()) - anc.begin());
sort(anc.begin(), anc.end(), [&](int a, int b){
return LCA(a, b) == a;
});
for(int i = 1 ; i < (int)anc.size() ; i++)
pans[anc[i]] = anc[i - 1];
for(auto &i : anc){
vector <int> c;
for(auto &j : a){
if(q[j] == i && i != j){
c.push_back(j);
pans[j] = i;
}
}
solve(c);
}
}
void bridge(int a, int b){
if(b < a) swap(a, b);
Bridge(a, b);
}
void go(){
asked = 0;
for(int i = 0 ; i < n ; i++){
v[i].clear();
}
p.assign(n + 1, -1);
int root = -1;
for(int i = 0 ; i < n ; i++){
if(p[i] == -1) root = i;
else v[p[i]].push_back(i);
}
dfsz(root);
pans.assign(n + 1, -1);
vector <int> all;
for(int i = 0 ; i < n ; i++){
all.push_back(i);
}
solve(all);
for(int i = 1 ; i < n ; i++){
bridge(i, pans[i]);
}
}
void Solve(int N) {
n = N;
go();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 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 |
248 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 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 |
248 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 |
376 KB |
Output is correct |
15 |
Correct |
3 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
424 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
3 ms |
504 KB |
Output is correct |
22 |
Correct |
3 ms |
504 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
380 KB |
Output is correct |
25 |
Correct |
2 ms |
504 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 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 |
248 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 |
376 KB |
Output is correct |
15 |
Correct |
3 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
424 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
3 ms |
504 KB |
Output is correct |
22 |
Correct |
3 ms |
504 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
380 KB |
Output is correct |
25 |
Correct |
2 ms |
504 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
7 ms |
376 KB |
Output is correct |
28 |
Correct |
7 ms |
376 KB |
Output is correct |
29 |
Correct |
8 ms |
376 KB |
Output is correct |
30 |
Correct |
8 ms |
376 KB |
Output is correct |
31 |
Correct |
7 ms |
508 KB |
Output is correct |
32 |
Correct |
11 ms |
508 KB |
Output is correct |
33 |
Correct |
15 ms |
504 KB |
Output is correct |
34 |
Correct |
17 ms |
504 KB |
Output is correct |
35 |
Correct |
17 ms |
524 KB |
Output is correct |
36 |
Correct |
7 ms |
376 KB |
Output is correct |
37 |
Correct |
14 ms |
376 KB |
Output is correct |
38 |
Correct |
16 ms |
504 KB |
Output is correct |
39 |
Correct |
14 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
767 ms |
784 KB |
Output is correct |
2 |
Correct |
816 ms |
872 KB |
Output is correct |
3 |
Correct |
798 ms |
828 KB |
Output is correct |
4 |
Correct |
778 ms |
860 KB |
Output is correct |
5 |
Correct |
349 ms |
808 KB |
Output is correct |
6 |
Correct |
444 ms |
868 KB |
Output is correct |
7 |
Correct |
705 ms |
1124 KB |
Output is correct |
8 |
Correct |
837 ms |
1032 KB |
Output is correct |
9 |
Correct |
977 ms |
1076 KB |
Output is correct |
10 |
Correct |
925 ms |
1292 KB |
Output is correct |
11 |
Correct |
935 ms |
1116 KB |
Output is correct |
12 |
Correct |
780 ms |
888 KB |
Output is correct |
13 |
Correct |
374 ms |
788 KB |
Output is correct |
14 |
Correct |
589 ms |
884 KB |
Output is correct |
15 |
Correct |
602 ms |
912 KB |
Output is correct |
16 |
Correct |
517 ms |
920 KB |
Output is correct |
17 |
Correct |
884 ms |
1088 KB |
Output is correct |
18 |
Correct |
545 ms |
936 KB |
Output is correct |
19 |
Correct |
476 ms |
888 KB |
Output is correct |
20 |
Correct |
589 ms |
904 KB |
Output is correct |
21 |
Correct |
588 ms |
788 KB |
Output is correct |
22 |
Correct |
649 ms |
780 KB |
Output is correct |
23 |
Correct |
711 ms |
1116 KB |
Output is correct |
24 |
Correct |
568 ms |
876 KB |
Output is correct |
25 |
Correct |
589 ms |
944 KB |
Output is correct |
26 |
Correct |
583 ms |
1136 KB |
Output is correct |
27 |
Correct |
614 ms |
888 KB |
Output is correct |
28 |
Correct |
945 ms |
1092 KB |
Output is correct |
29 |
Correct |
970 ms |
1192 KB |
Output is correct |
30 |
Correct |
922 ms |
1024 KB |
Output is correct |
31 |
Correct |
884 ms |
1072 KB |
Output is correct |
32 |
Correct |
1819 ms |
936 KB |
Output is correct |
33 |
Correct |
1109 ms |
1020 KB |
Output is correct |
34 |
Correct |
8 ms |
504 KB |
Output is correct |
35 |
Correct |
7 ms |
460 KB |
Output is correct |
36 |
Correct |
8 ms |
376 KB |
Output is correct |
37 |
Correct |
7 ms |
508 KB |
Output is correct |
38 |
Correct |
7 ms |
376 KB |
Output is correct |
39 |
Correct |
10 ms |
376 KB |
Output is correct |
40 |
Correct |
14 ms |
504 KB |
Output is correct |
41 |
Correct |
17 ms |
504 KB |
Output is correct |
42 |
Correct |
17 ms |
504 KB |
Output is correct |
43 |
Correct |
7 ms |
504 KB |
Output is correct |
44 |
Correct |
14 ms |
376 KB |
Output is correct |
45 |
Correct |
15 ms |
376 KB |
Output is correct |
46 |
Correct |
13 ms |
376 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 |
376 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 |
376 KB |
Output is correct |
54 |
Correct |
2 ms |
376 KB |
Output is correct |
55 |
Correct |
2 ms |
376 KB |
Output is correct |
56 |
Correct |
2 ms |
504 KB |
Output is correct |
57 |
Correct |
2 ms |
504 KB |
Output is correct |
58 |
Correct |
2 ms |
376 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 |
380 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 |