count_characters_in_your_string.cpp

//The main idea is to count all the occurring characters in a string. If you have a string like aba, then the result should be {'a': 2, 'b': 1}.

//What if the string is empty? Then the result should be empty object literal, {}.

#include <map>
#include <string>

std::map<char, unsigned> count(const std::string& string) {
  std::map<char, unsigned> result;
  
  for (const char& letter : string)
  {
    result[letter]++;
  }
  
  return result;
}