Question

In PYTHON!

Exercise 3: Lists and Functions In this exercise we will explore the use of lists and functions with multiple inputs and multiple outputs. Your task is to implement the separate_and_sort function. This function takes two input parameters: 1. A list containing strings and integers in any order. 2. An optional integer parameter size which controls how many items in the list the function will process. If the length of the list is smaller than the value of size, then the entire list is processed. If no size parameter is given, or if the input size is negative, then the entire list is processed. The function returns two lists: 1. A list of the processed integers from the input list. 2. A list of the processed strings from the input list. This function processes the first size number of elements from the input list in the following way: 1. The integers are put into one list and the strings are put into another list. (i.e. they are separated). 2. The list of integers is sorted and the list of strings is sorted (i.e. the two lists are sorted independently). 3. The list of sorted integers is returned in the first position and the list of sorted strings is returned in the second position. For example, separate_and_sort([27, "foo", 5, 2, "bar"]) would return [2, 5, 27] and ["bar", "foo"] , but separate_and_sort([27, "foo", 5, 2, "bar"), 3) would return (5, 27] and ["foo"] . Note: If no integer is found in the first size elements of the input list, still return an empty list for the list of sorted integers (and the same goes for the list of sorted strings). For example, separate_and_sort(["foo", "bar", "buzz", 12], 3) returns [] and ["bar", "buzz", "foo"] . Hint: you can use isinstance(x, int) to determine if the variable x is a integer and isinstance(x, str) to determine if the variable x is a string. Recall that you can return two variables x, and y with return x,y

Answer 1

def separate_and_sort(lst,size=0):
   integers=[]
   strings=[]
   if size==0 or size<0: #process entire list
       for item in lst:
           if isinstance(item,int): #item is of int type
               integers.append(int(item))
           elif isinstance(item,str): #item is of string type
               strings.append(item)
       #sort integers and strings
       integers.sort()
       strings.sort()
   else:
       for index in range(size):
           if isinstance(lst[index],int): #item is of int type
               integers.append(int(lst[index]))
           elif isinstance(lst[index],str): #item is of string type
               strings.append(lst[index])
       #sort integers and strings
       integers.sort()
       strings.sort()
   return [integers,strings]
print(separate_and_sort([27,"foo",5,2,"bar"]))
print(separate_and_sort([27,"foo",5,2,"bar"],3))
print(separate_and_sort(["foo","bar","buzz",12],3))

Output

* 0) 10:28 PM koushikhp@koushikhpnew: koushikhp@koushikhpnew:-$ python3 List_And_Functions.py E [[2, 5, 27], ['bar', 'foo']] [[5, 27], ['foo']] [[], ['bar', 'buzz', 'foo') koushikhp@koushikhpnew:-$ U G 73