Function split

tools/cpp_examples/demo-client/src/ctr_prediction.cpp:51–64

std::vector<std::vector<int>> response_time;

std::vector<std::string> split(const std::string& str,
                               const std::string& pattern) {
  std::vector<std::string> res;
  if (str == "") return res;
  std::string strs = str + pattern;
  size_t pos = strs.find(pattern);
  while (pos != strs.npos) {
    std::string temp = strs.substr(0, pos);
    res.push_back(temp);
    strs = strs.substr(pos + 1, strs.size());
    pos = strs.find(pattern);
  }
  return res;
}

/**
 * Simulate CPython hash function on string objects