oj.uz

Submission #863212

# Submission time Handle Problem Language Result Execution time Memory
863212 2023-10-19T18:39:51 Z Ahmed_Solyman Lampice (COCI21_lampice) C++14
0 / 50
 1 ms 348 KB 
/*
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()){
    			cout<<(int)arr.size()/k<<endl;
    			for(int u=0;u<(int)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]);
      |               ~^~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Incorrect 1 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Incorrect 1 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -