Submission #1307504

#	Time	Username	Problem	Language	Result	Execution time	Memory
1307504		ikkyu	Lampice (COCI21_lampice)	C++20	50 / 50	1 ms	352 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;

const int MAX = 1010;
int n, k;
int a[MAX];

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> k;
    for (int i = 1; i <= n; ++i){
        cin >> a[i];
    }
    for (int i = 1; k * i <= n; ++i){
        for (int st = 1, en = k * i; en <= n; ++st, ++en){
            bool flag = true;
            for (int lf = st; lf <= en; lf += i){
                for (int j = 0; j < i; ++j){
                    if (a[st + j] != a[lf + j]){
                        flag = false;
                        break;
                    }
                }
            }
            if (flag){
                cout << i << '\n';
                for (int j = 0; j < i; ++j){
                    cout << a[st + j] << ' ';
                }
                return 0;
            }
        }
    }
    cout << -1;
}

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