#ifndef S0003_LONGEST_SUBSTRING_WITHOUT_REPEATING_CHARACTERS_HPP
#define S0003_LONGEST_SUBSTRING_WITHOUT_REPEATING_CHARACTERS_HPP

#include <map>
#include <string>

using namespace std;

class S0003 {
 public:
  /**
   * @brief Longest Substring Without Repeating Characters
   *
   * Given a string `s`, find the length of the **longest substring** without
   * repeating characters.
   *
   * @param s the given string
   * @return the longest substring without repeating characters
   */
  int lengthOfLongestSubstring(std::string s);
};

#endif