Submission #863214

#	Time	Username	Problem	Language	Result	Execution time	Memory
863214		Ahmed_Solyman	Lampice (COCI21_lampice)	C++14	50 / 50	1 ms	456 KiB

Main

/*
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 && v.size()){
		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;
    	for(int j=i;j<n;j++){
    		arr.push_back(v[j]);
    		if(ok(arr,k)){
    			cout<<arr.size()/k<<endl;
    			for(int p=0;p<arr.size()/k;p++){
    				cout<<arr[p]<<" ";
    			}
    			return 0;
    		}
    	}
    }
    cout<<-1<<endl;
    return 0;
}

Compilation message (stderr)

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:75:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |        for(int p=0;p<arr.size()/k;p++){
      |                    ~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 25 / 25