Submission #878947

#	Time	Username	Problem	Language	Result	Execution time	Memory
878947		Youssif_Elkadi	Lampice (COCI21_lampice)	C++17	50 / 50	1 ms	456 KiB

Main

#include <bits/stdc++.h>
using namespace std;
const long long N = 2e5 + 5, mod = 1e9 + 7;
int n, k;
int main()
{
    ios_base::sync_with_stdio(0), cin.tie(NULL), cout.tie(NULL);
    cin >> n >> k;
    vector<int> arr(n);
    for (int i = 0; i < n; i++)
        cin >> arr[i];
    for (int i = 0; i < n; i++)
    {
        for (int j = i; j < n; j++)
        {
            if ((j - i + 1) % k != 0)
                continue;
            int p = i, len = (j - i + 1) / k;
            bool flag = 0;
            for (int s = i; s <= j; s++)
            {
                if (arr[s] != arr[p])
                    flag = 1;
                p++, len--;
                if (len == 0)
                    len = (j - i + 1) / k, p = i;
            }
            if (!flag)
            {
                cout << len << "\n";
                for (int s = i; s < i + len; s++)
                    cout << arr[s] << " ";
                return 0;
            }
        }
    }
    cout << -1 << "\n";
    return 0;
}

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