/**
* author: NotLinux
* created: 07.09.2022 ~ 15:01:43
**/
#include <bits/stdc++.h>
using namespace std;
#define int long long
#ifdef LOCAL
#include "/home/notlinux/debug.h"
#else
#define debug(x...) void(37)
#endif
vector < int > arr;
bool Is_same(int l , int r){
vector < int > v1,v2;
for(int i = l;i<=(l+r)/2;i++){
v1.push_back(arr[i]);
}
for(int i = (l+r)/2+1;i<=r;i++){
v2.push_back(arr[i]);
}
return (v1 == v2);
}
void solve(){
int n ,k ;cin >> n >> k;
arr.resize(n);
for(auto &inp : arr)cin >> inp;
vector < int > ans;
int lol = 0;
for(int len = 1;len*k <= n ;len++){
vector < int > dp(n,1LL);
for(int j = len;j<n;j++)dp[j] = 1;
for(int j = 2*len-1;j<n;j++){
dp[j] += dp[j-2*len+1] * Is_same(j-2*len+1,j);
}
int mpos = *max_element(dp.begin()+len,dp.end());
int mindpos = max_element(dp.begin()+len,dp.end()) - dp.begin();
vector < int > locarr;
for(int j = mindpos-len+1;j<=mindpos;j++)locarr.push_back(arr[j]);
if(lol < mpos){
ans = locarr;
lol = mpos;
}
}
if(lol < k){
cout << "-1" << endl;
return;
}
cout << (int)ans.size() << endl;
for(auto itr : ans)cout << itr << " ";
cout << endl;
}
int32_t main(){
ios_base::sync_with_stdio(0);cin.tie(nullptr);
int tt=1;
// cin >> tt;
while(tt--)solve();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
316 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
328 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
316 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
328 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
320 KB |
Output is correct |
26 |
Correct |
1 ms |
212 KB |
Output is correct |
27 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
28 |
Halted |
0 ms |
0 KB |
- |