제출 #496515

#제출 시각아이디문제언어결과실행 시간메모리
496515kappaLampice (COCI21_lampice)C++14
50 / 50
1 ms204 KiB
#include <bits/stdc++.h>

using namespace std;

int n, k, d[55];

int main(){
    cin >> n >> k;

    for (int i = 0; i < n; i++)
    {
        cin >> d[i];
    }

    for (int l = 0; l < n; l++)
    {
        for (int r = l; r < n; r++)
        {
            int temp = 1, len = r - l + 1;

            for (int i = 1; i < k && temp; i++)
            {
                for (int j = l; j <= r; j++)
                {
                    if(j + i * len >= n || d[j + i * len] != d[j]){
                        temp = 0;
                        break;
                    }
                }
            }

            if(temp){
                cout << len << "\n";
                for (int i = l; i <= r; i++)
                {
                    cout << d[i] << " ";
                }

                return 0;
            }
        }
    }

    cout << "-1";
}
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