Submission #896894

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
896894	2024-01-02 10:39:30	classic	Necklace (Subtask 4) (BOI19_necklace4)	C++14	15 / 15	292 ms	828 KiB

necklace

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#include <bits/stdc++.h>
namespace classic {
  // Knuth-Morris-Pratt
  std::vector<int> prefixFunction(std::string str) {
    int lengthStr = (int)str.size();
    std::vector<int> prefix(lengthStr);
    for (int index = 1; index < lengthStr; index++) {
      int previousIndex = prefix[index - 1];
      while (previousIndex > 0 && str[index] != str[previousIndex]) {
        previousIndex = prefix[previousIndex - 1];
      }
      if (str[index] == str[previousIndex]) {
        previousIndex++;
      }
      prefix[index] = previousIndex;
    }
    return prefix;
  }
} // namespace classic
int main() {
  std::ios::sync_with_stdio(false);
  std::cin.tie(0);
  std::string str1, str2;
  std::cin >> str1 >> str2;
  int lengthStr1 = str1.size(), lengthStr2 = str2.size();
  int maxLength = 0;
  std::pair<int, int> positionPrefix;
  std::function<void(bool)> turnedOver = [&](bool isTurnedOver) {
 
 
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• Subtask 1: 15 / 15