Count Words Ending with 'y' in a String

Problem:

Given an English sentence containing spaces and multiple words (up to 100 characters), count the number of words ending with the letter 'y'.

Input:

Input a single sentence.

Output:

Output the number of words.

Example:

Input: 'today is my 16th birthday'

Output: 3

Solution:

1. Split the sentence into words using spaces as separators.
2. Iterate through each word and check if the last letter is 'y'.
3. Increment a counter for each word ending with 'y'.
4. Output the final counter value.

Reference Code:

def count_y_words(sentence):
  words = sentence.split()
  count = 0
  for word in words:
    if word[-1] == 'y':
      count += 1
  return count

# Example usage
sentence = 'today is my 16th birthday'
result = count_y_words(sentence)
print(result)  # Output: 3