#include <bits/stdc++.h>
using std::vector;
using std::array;
using std::pair;
using std::tuple;
void show(const vector<int>& v) {
const int n = v.size();
std::cout << n << '\n';
for (int i = 0; i < n; ++i) {
std::cout << v[i] << " \n"[i + 1 == n];
}
}
int main() {
std::ios_base::sync_with_stdio(false);
std::cin.tie(nullptr);
int N;
std::cin >> N;
vector<int> A(N);
for (auto& x : A) {
std::cin >> x;
}
const auto try_seq = [&](const int first, const int dif) {
std::multiset<int> set(A.begin(), A.end());
std::multiset<int> dist;
for (auto itr = set.begin(); std::next(itr) != set.end(); ++itr) {
dist.insert(*std::next(itr) - *itr);
}
int element = first;
vector<int> taken;
while (true) {
auto itr = set.find(element);
if (itr == set.end()) {
return;
}
if (itr != set.begin()) {
dist.erase(dist.find(*itr - *std::prev(itr)));
}
if (std::next(itr) != set.end()) {
dist.erase(dist.find(*std::next(itr) - *itr));
}
if (itr != set.begin() and std::next(itr) != set.end()) {
dist.insert(*std::next(itr) - *std::prev(itr));
}
taken.push_back(element);
set.erase(itr);
if (dist.empty() or *dist.begin() == *dist.rbegin()) {
show(taken);
show(vector<int>(set.begin(), set.end()));
std::exit(EXIT_SUCCESS);
}
element += dif;
}
};
std::sort(A.begin(), A.end());
try_seq(A[0], A[1] - A[0]);
try_seq(A[0], A[2] - A[0]);
try_seq(A[1], A[2] - A[1]);
std::cout << -1 << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
316 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
316 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
308 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
0 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
0 ms |
316 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
74 ms |
12076 KB |
Output is correct |
2 |
Correct |
76 ms |
11952 KB |
Output is correct |
3 |
Correct |
81 ms |
11980 KB |
Output is correct |
4 |
Correct |
61 ms |
11968 KB |
Output is correct |
5 |
Correct |
81 ms |
12080 KB |
Output is correct |
6 |
Correct |
60 ms |
12044 KB |
Output is correct |
7 |
Correct |
72 ms |
11964 KB |
Output is correct |
8 |
Correct |
59 ms |
12124 KB |
Output is correct |
9 |
Correct |
59 ms |
11344 KB |
Output is correct |
10 |
Correct |
71 ms |
11956 KB |
Output is correct |
11 |
Correct |
54 ms |
12372 KB |
Output is correct |
12 |
Correct |
0 ms |
308 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
316 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
0 ms |
308 KB |
Output is correct |
18 |
Correct |
1 ms |
332 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
0 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
0 ms |
316 KB |
Output is correct |
31 |
Correct |
74 ms |
12076 KB |
Output is correct |
32 |
Correct |
76 ms |
11952 KB |
Output is correct |
33 |
Correct |
81 ms |
11980 KB |
Output is correct |
34 |
Correct |
61 ms |
11968 KB |
Output is correct |
35 |
Correct |
81 ms |
12080 KB |
Output is correct |
36 |
Correct |
60 ms |
12044 KB |
Output is correct |
37 |
Correct |
72 ms |
11964 KB |
Output is correct |
38 |
Correct |
59 ms |
12124 KB |
Output is correct |
39 |
Correct |
59 ms |
11344 KB |
Output is correct |
40 |
Correct |
71 ms |
11956 KB |
Output is correct |
41 |
Correct |
54 ms |
12372 KB |
Output is correct |
42 |
Correct |
0 ms |
308 KB |
Output is correct |
43 |
Correct |
85 ms |
11964 KB |
Output is correct |
44 |
Correct |
138 ms |
11316 KB |
Output is correct |
45 |
Correct |
54 ms |
11436 KB |
Output is correct |
46 |
Correct |
64 ms |
12052 KB |
Output is correct |
47 |
Correct |
132 ms |
11060 KB |
Output is correct |
48 |
Correct |
58 ms |
11456 KB |
Output is correct |
49 |
Correct |
80 ms |
12096 KB |
Output is correct |
50 |
Correct |
111 ms |
11156 KB |
Output is correct |
51 |
Correct |
54 ms |
11460 KB |
Output is correct |
52 |
Correct |
68 ms |
12032 KB |
Output is correct |
53 |
Correct |
130 ms |
11020 KB |
Output is correct |
54 |
Correct |
55 ms |
11388 KB |
Output is correct |
55 |
Correct |
68 ms |
11992 KB |
Output is correct |
56 |
Correct |
75 ms |
11972 KB |
Output is correct |
57 |
Correct |
48 ms |
12464 KB |
Output is correct |
58 |
Correct |
1 ms |
332 KB |
Output is correct |