Submission #520376

#	Time	Username	Problem	Language	Result	Execution time	Memory
520376		Alex_tz307	Lampice (COCI21_lampice)	C++17	50 / 50	1 ms	316 KiB

Main

#include <bits/stdc++.h>

using namespace std;

void testCase() {
  int n, k;
  cin >> n >> k;
  vector<int> a(n + 1);
  for (int i = 1; i <= n; ++i) {
    cin >> a[i];
  }
  for (int i = 1; i <= n; ++i) {
    for (int j = i; j <= n; ++j) {
      if ((j - i + 1) % k == 0) {
        vector<int> pattern, v;
        bool ok = true;
        for (int p = i; p <= j && ok; ++p) {
          v.emplace_back(a[p]);
          if ((int)v.size() == (j - i + 1) / k) {
            if (pattern.empty()) {
              pattern = v;
            } else {
              if (v != pattern) {
                ok = false;
              }
            }
            v.clear();
          }
        }
        if (ok) {
          cout << pattern.size() << '\n';
          for (int x : pattern) {
            cout << x << ' ';
          }
          cout << '\n';
          return;
        }
      }
    }
  }
  cout << "-1\n";
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  int tests = 1;
  for (int tc = 0; tc < tests; ++tc) {
    testCase();
  }
  return 0;
}

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