/*
In the name of Allah
made by: Ahmed_Solyman
*/
#include <bits/stdc++.h>
#include <ext/rope>
using namespace std;
using namespace __gnu_cxx;
#pragma GCC optimize("-Ofast")
#pragma GCC optimize("-O1")
//-------------------------------------------------------------//
typedef long long ll;
typedef unsigned long long ull;
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define PI acos(-1)
#define lb lower_bound
#define ub upper_bound
#define endl '\n'
#define all(v) v.begin(),v.end()
#define allr(v) v.rbegin(),v.rend()
#define sum_to(n) (n*(n+1))/2
#define pb push_back
#define pf push_front
#define fil(arr,x) memset(arr,x,sizeof(arr))
const ll mod=1e9+7;
int dx[8]={0,1,0,-1,1,1,-1,-1};
int dy[8]={1,0,-1,0,1,-1,-1,1};
//-------------------------------------------------------------//
ll lcm(ll a,ll b)
{
return (max(a,b)/__gcd(a,b))*min(a,b);
}
void person_bool(bool x)
{
cout<<(x?"YES":"NO")<<endl;
}
bool ok(vector<int>&v,int k){
if(v.size()%k==0){
vector<vector<int>>g;
vector<int>temp;
for(int i=0;i<v.size();i++){
temp.push_back(v[i]);
if(temp.size()==v.size()/k){
g.push_back(temp);
temp.clear();
}
}
bool ret=1;
for(int i=1;i<g.size();i++)ret&=(g[i]==g[i-1]);
return ret;
}
else{
return 0;
}
}
int main()
{
//freopen("input.txt","r",stdin);
//freopen("output.txt","w",stdout);
#ifndef ONLINE_JUDGE
freopen("input.in", "r", stdin);
freopen("output.out", "w", stdout);
#endif
fast
int n,k;cin>>n>>k;
vector<int>v(n);
for(auto &i:v)cin>>i;
for(int i=0;i<n;i++){
vector<int>arr=v;
for(int j=0;j<i;j++){
arr.erase(arr.begin());
}
for(int j=n-1;j>=i;j--){
arr.pop_back();
if(ok(arr,k) && arr.size()){
for(int u=0;u<arr.size()/k;u++){
cout<<arr[u]<<" ";
}
cout<<endl;
return 0;
}
}
}
cout<<-1<<endl;
return 0;
}
Compilation message
Main.cpp: In function 'bool ok(std::vector<int>&, int)':
Main.cpp:42:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
42 | for(int i=0;i<v.size();i++){
| ~^~~~~~~~~
Main.cpp:50:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
50 | for(int i=1;i<g.size();i++)ret&=(g[i]==g[i-1]);
| ~^~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:77:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
77 | for(int u=0;u<arr.size()/k;u++){
| ~^~~~~~~~~~~~~
Main.cpp:62:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
62 | freopen("input.in", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:63:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
63 | freopen("output.out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
2 ms |
600 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
2 ms |
756 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
2 ms |
600 KB |
Execution killed with signal 8 |
| 2 |
Halted |
0 ms |
0 KB |
- |
