input: Write a function to convert a list of strings to camelCase and return a new list with the converted strings. The function should return the concatenated camelCase string.
  assert convertToCamelCase(["this", "is", "an", "example"]) == "ThisIsAnExample"
  assert convertToCamelCase(["hello", "world"]) == "HelloWorld"
  assert convertToCamelCase(["this", "is", "a", "test"]) == "ThisIsATest"
  assert convertToCamelCase([]) == ""
  assert convertToCamelCase(["single"]) == "Single"
output: def convertToCamelCase(strings):
      if not strings:
          return ""
      camel_case = strings[0].capitalize()
      for word in strings[1:]:
          camel_case += word.capitalize()
      return camel_case