Week - 3

1- perfect numbers.py

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+# Perfect number: Perfect number, 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.
+# 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 them using with reduce and filter functions.
+
+from functools import reduce            # library to use reduce
+
+def topla(x,y):                         # Name and parameters of function
+    return  x+y
+
+mylist = []                             # Empty list named mylist
+def perfect_numbers(fltrObj):           # Name and parameters of function
+
+    toplam = 0                          # Searching for of Perfect numbers
+    for i in range(1, 1000):
+        for j in range(1, 1000):
+            if (i % j == 0) and (i != j):
+                toplam = toplam + j
+        if i == toplam:
+            mylist.append(i)
+            print(i, "is a Perfect number")
+        toplam = 0
+fltrObj=filter(perfect_numbers, range(1000))    # to filter perfect numbers
+perfect_numbers(fltrObj)                        # callinig function
+print("Perfect Numbers: ",mylist)
+sum_of_perfects = reduce(topla, mylist)         # using reduce command for cumulative result
+print("Sum of perfect numbers between 1 and 1000: ",sum_of_perfects)
+
+

2- number_in_text.py

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+# Write a function that gives the reading of entered any two-digit number.
+# Example: 28---------------->Twenty Eight
+
+def read_the_numbers(numbers):                          # Name and parameter of funtion
+    if len(number) != 2 :                               # Cheking if two digit number is entered
+        print("You didnt enter two digit number")
+    else:
+        if number[0] == "1":                            # To print irregular numbers between 10-19
+            if number[1] == "0": print("ten")
+            if number[1] == "1": print("eleven")
+            if number[1] == "2": print("twelve")
+            if number[1] == "3": print("thirteen")
+            if number[1] == "4": print("forteen")
+            if number[1] == "5": print("fifteen")
+            if number[1] == "6": print("sixteen")
+            if number[1] == "7": print("seventeen")
+            if number[1] == "8": print("eighteen")
+            if number[1] == "9": print("nineteen")
+
+        else:
+            if number[0]== "2": print("twenty",end=" ")     # To print reading of index 0
+            if number[0]== "3": print("thirty",end=" ")
+            if number[0]== "4": print("forty",end=" ")
+            if number[0]== "5": print("fifty",end=" ")
+            if number[0]== "6": print("sixty",end=" ")
+            if number[0]== "7": print("seventy",end=" ")
+            if number[0]== "8": print("eighty",end=" ")
+            if number[0]== "9": print("ninety",end=" ")
+
+            if number[1]== "1": print("one")                # To print reading of index 1
+            if number[1]== "2": print("two")
+            if number[1]== "3": print("three")
+            if number[1]== "4": print("four")
+            if number[1]== "5": print("five")
+            if number[1]== "6": print("six")
+            if number[1]== "7": print("seven")
+            if number[1]== "8": print("eight")
+            if number[1]== "9": print("nine")
+
+number = input ("Enter two digit numbers: ")
+read_the_numbers(number)                                    # Calling Function

3- alphabetical_order.py

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+# Write a function that takes an input form user which separates the words hyphen icon(-) and
+# sort the words alphabetical order and then adds hyphen icon (-) between them and gives the output of it.
+# Example:
+#
+# Input  >>> green-red-yellow-black-white
+# Output >>> black-green-red-white-yellow
+
+def alphatebic_order(sentence):         # Name and parameter of funtion
+    mylist = sentence.split("-")        # decompose the string an put into the elements in mylist
+    print("-".join(sorted(mylist)))     # join them in a new string in a sorted form
+
+sentence = input ("Enter a sentence with '-' sign between words: ")
+alphatebic_order(sentence)              # Calling function
+
+

4- unique_elements.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(my_list):           # Name and parameter of funtion
+    new_list = set(my_list)         # Convert the list to the set data type
+    print(list(new_list))           # Convert the set back to list type and print
+
+unique_list([1,2,3,3,3,3,4,5,5])    # Calling Function
+
+

5- equal_reverse.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 palindrom(args):                                # Name and parameter of function
+    result=""
+    for word in args:                               # list elements will be visited
+        reversed_word = word[::-1]                  # will be checked if it is a palindrom
+
+        if word == reversed_word:                   # If palindrom True
+            result += ("True, ")
+        else:
+            result += ("False, ")                   # If not False answer will be returned
+
+    return result
+original_word = input ("Enter words seperated with only comma sign ',' :")
+mylist = original_word.split(",")
+print(palindrom(mylist))                            # Calling function

6-find_digits.py

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+# Find Digits
+# Given an integer, for each digit that makes up the integer determine whether it is a divisor.
+# Count the number of divisors occurring within the integer.
+# Example
+# Check whether , and are divisors of . All 3 numbers divide evenly into so return .
+
+def find_digits():                                          # Name and parameter of function
+    n=0
+    number = input("Enter a number")
+    intnum = int(number)
+    uzunluk = len(number)
+
+    for x in range(uzunluk):                                # Loop will run in the number of digits
+        if int(number[x]) != 0 and intnum % int(number[x]) == 0:    # if digit is not zero and divisor of number
+           n+=1                                             # counter will increase
+    return n                                                # number of divisor will be returned
+
+print(find_digits())                                        # Calling function

7- Capitilize.py

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+# Capitilize
+# You are asked to ensure that the first and last names of people begin with a capital letter in their passports.
+# For example, alison heck should be capitalised correctly as Alison Heck.
+# Given a full name, your task is to capitalize the name appropriately.
+
+name_surname = input("enter name and surname")
+if len(name_surname) <= 1000:
+    name,surname = name_surname.split(" ")
+    print(name[0].upper()+name[1:],"",surname[0].upper()+surname[1:])