continued learning

mite404 · Feb 3, 2024 · 1ccd14a · 1ccd14a
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diff --git a/010_fizzbuzz.py b/010_fizzbuzz.py
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+# Challenge 10: FizzBuzz
+# Write a program that prints the numbers from 1 to 20.
+# For multiples of 3, print "Fizz" instead of the number,
+# and for multiples of 5, print "Buzz."
+#
+# For numbers which are multiples of both three and five, print "FizzBuzz."
+
+
+# Pseudocode workflow example:
+'''
+For each number from 1 to 20:
+    If the number is divisible by both 3 and 5:
+        Print "FizzBuzz"
+    Else, if the number is divisible by 3:
+        Print "Fizz"
+    Else, if the number is divisible by 5:
+        Print "Buzz"
+    Else:
+        Print the number
+'''
+
+
+# defining my own function
+def fizzbuzz():
+    for number in range(1, 21):
+        if number % 3 == 0 and number % 5 == 0:
+            print('FizzBuzz')
+        elif number % 3 == 0:
+            print('Fizz')
+        elif number % 5 == 0:
+            print('Buzz')
+        else:
+            print(number)
+
+
+# ask user for input
+while True:
+    usernum = int(input('Please enter a number (0-20): '))
+    if 1 <= usernum <= 20:
+        break
+    else:
+        print('Ivalid input. Please enter a number between 0-20.')
+
+
+# call the function
+fizzbuzz()
diff --git a/11_palindrome_check.py b/11_palindrome_check.py
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+# Challenge 1: Palindrome Checker
+#
+# Write a Python function that checks if a given string is a palindrome.
+# A palindrome is a word, phrase, number, or other sequence of characters
+# that reads the same forward and backward, ignoring spaces, punctuation,
+# and capitalization.
+import re
+
+
+def askforString():             # ask user to enter a string
+    s = input('Please enter a palindrome: ')
+    return s
+
+
+def is_palindrome(s):
+    # convert the string to lowercase
+    s = s.lower()
+
+    # remove non-alphanumberic chars
+    s = re.sub(r'\W+', '', s)
+
+    # check if the string is a palindrome
+    reversed_s = s[::-1]
+
+    if s == reversed_s:
+        print(f"{s} is a palindrome!")
+    else:
+        print(f"{s} is not a palindrome, please try again.")
+
+
+def main():                     # calling the functions
+    user_input = askforString()
+    is_palindrome(user_input)
+
+
+# calling the main function
+if __name__ == "__main__":
+    main()
diff --git a/12_factorial.py b/12_factorial.py
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+# The factorial function says to multiply all whole numbers from our
+# number down to 1.
+#
+# Examples: 4! = 4 × 3 × 2 × 1 = 24.
+
+def factorial(n):
+    result = 1          # Initialize the result variable outside the loop
+
+    while n > 1:        # Use a condition to control the loop
+        result *= n     # Update the result variable by multiplying with the current value of n
+        n -= 1          # Decrement n to move towards the base case
+
+    return result       # Return the final result after the loop
+
+# Test Cases
+print(factorial(5))
+print(factorial(0))