Week 3 - Homework

1- Perfect Number Kerım Sak.py

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+
+# Perfect number: Perfect number is a positive integer that is equal to the sum of its proper divisors.
+
+# The smallest perfect number is 6, which is the sum of 1, 2, and 3.
+
+# Some other perfect numbers are 28(1+2+4+7+14=28), 496 and 8128.
+
+# Write a function that finds perfect numbers between 1 and 1000. Check perfect numbers between 1 and 1000 and find the sum of the perfect numbers using reduce and filter functions.
+
+### First Solution ###
+
+def perfect_numbers(given_number = 1000): # Takes 1000 as an argument if not given
+    my_list = [x for x in range(1,given_number +1)]  # List comprehension
+    result = []
+
+    for i in my_list: # Takes every number between 1-1000
+        sum_divisors = 0  # sum of the divisors
+        for y in range(1,i): 
+            if i % y == 0: # Checking for every proper divisors
+                sum_divisors + = y 
+
+        if i == sum_divisors: # Checking the if it is equal to sum of the divisors
+            result.append(i)   
+
+    return (', '.join(map(str, result))) # Print list elements seperated with comas
+
+print(perfect_numbers())
+
+
+### Second Solution -> Reduce and Filter wil be added ###
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2- Reading Number Kerim.py

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+# Write a function that outputs the transcription of an input number with two digits.
+# Example:
+# 28---------------->Twenty Eight\
+
+def reading_number(number):
+    try:
+        number = str(number)
+
+        if len(number) != 2:
+            return ("Enter two digit number!")
+
+        tens_digit_dic = {1:"Ten", 2:"Twenty", 3:"Thirty", 4:"Forty", 5:"Fifty", 6:"Sixty", 7:"Seventy", 8:"Eighty",9:"Ninety"}
+        units_digit_dic = {1:"One", 2:"Two", 3:"Three", 4:"Four", 5:"Five", 6:"Six", 7:"Seven", 8:"Eight",9:"Nine"}
+        digits_ten_to_twenty = ["Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"]        
+
+        unit_digit = int(number[1])
+        ten_digit = int(number[0])
+
+        if unit_digit == 0: #10,20,30,40...
+            return (tens_digit_dic[ten_digit])
+        elif ten_digit == 1: #11,12,13
+            return (digits_ten_to_twenty[unit_digit -1])
+        else:
+            return (tens_digit_dic[ten_digit] + " " + units_digit_dic[unit_digit])
+    except:
+        return ("Please enter a NUMBER!!!")
+
+
+print(reading_number(6)) #Enter two digit number!
+print(reading_number(11)) #Eleven
+print(reading_number(10)) #Ten
+print(reading_number(16)) #Sixteen
+print(reading_number(30)) #Thirty
+print(reading_number(56)) #Fifty Six
+print(reading_number(99)) #Ninety Nine
+print(reading_number(999)) # Enter two digit number!

3- Alphabetical order Kerim.py

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+# Write a function that takes an input of different words with hyphen (-) in between them and then:
+
+# sorts the words in alphabetical order,
+# adds hyphen icon (-) between them,
+# gives the output of the sorted words.
+# Example:
+
+# Input  >>> green-red-yellow-black-white
+# Output >>> black-green-red-white-yellow 
+
+def alphabetical_order(given_words = "green-red-yellow-black-white"): # Takes a string as an argument
+    return ("-".join(map(str,sorted(list(given_words.split("-")))))) # Makes a sorted list and then joins with "-" sign
+
+print(alphabetical_order())
+

4- Unique list Kerim .py

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+# Write a function that filters all the unique(unrepeated) elements of a given list.
+
+# Example:
+
+# Function call: unique_list([1,2,3,3,3,3,4,5,5])
+# Output       : [1, 2, 3, 4, 5]
+
+def unique_list(given_list): # Takes a list as argument
+    return list(set(given_list)) # Makes a set with unique elements then makes a list
+
+print(unique_list([1,2,3,3,3,3,4,5,5]))
+

5- Equal Reverse Kerim.py

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+# Write a function that controls the given inputs whether they are equal to their reversed order or not.
+# Example:
+# Input  >>> madam, tacocat, utrecht 
+# Output >>> True, True, False
+
+
+def equal_reverse(*words): # More then one input 
+    check_list = [] # Empty list
+    for word in words:
+        reversed = word[::-1] # reversed word
+        if word == reversed:  # If word is equal to reversed order
+            check_list.append("True")  # add True to list
+        else: # if not equal
+            check_list.append("False") # add False to list
+    return(", ".join(map(str,check_list))) # print list items comma separated
+
+
+print(equal_reverse('madam', "tacocat", "utrecht"))
+print(equal_reverse("seles", "merhaba", "beb", "madam"))