# Tutorial 3 - Problem 7

def count(word, targetLetter):
  count = 0
  for letter in word:
    if letter == targetLetter:
      count = count + 1
  return count

# As a second exercise, rewrite the function so that instead of traversing the string,
# it uses the three parameter version of find from our Problem 4.

def findStartingAt(word, letter, startingHere):
  # For testing purposes
  #   print(word, letter, startingHere)
  index = startingHere
  position = -1
  while index < len(word):
    if word[index] == letter:
      # For testing purposes
      # print(word, letter, startingHere, index) 
      position = index
      index = len(word)
    else:
      index = index + 1
  return position


def count2(word, targetLetter):
  count = 0
  index = 0
  while index != -1:
    index = findStartingAt(word, targetLetter, index)
    if index != -1 :
        count += 1
        index += 1
  return count


# Main part of program

print('count("Greetings all Ladies of Bample", "a")): ', count("Greetings all Ladies of Bample", "a"))
print('count2("Greetings all Ladies of Bample", "a")): ', count2("Greetings all Ladies of Bample", "a"))