Quiz

Example - sales

At the beginning of the script, the values of several sales in one store are given. Extract the sales with a value greater than 1000 and less than or equal to 4000 into a list, then print the list elements out.

sales = (241, 5372, 1278, 9335, 2438, 127, 529, 6027) lower_bound = 1000 upper_bound = 4000 # complete the program

The problem is solved as follows:

sales = (241, 5372, 1278, 9335, 2438, 127, 529, 6027) lower_bound = 1000 upper_bound = 4000 requested_sales = [] for value in sales: if value > lower_bound and value <= upper_bound: requested_sales.append(value) print('Requested sales:') for value in requested_sales: print(value)

Example - Leap changes

A tuple of numbers is given. Extract numbers that differ from their predecessors at least by 10, then print them out.

numbers = (5, 7, 9, 11, 22, 18, 15, 13, 36, 31, 27, 14, 13, 20) # complete the program

One possible solution is:

numbers = (5, 7, 9, 11, 22, 18, 15, 13, 36, 31, 27, 14, 13, 20) leap_changes = [] for i in range(1, len(numbers)): if abs(numbers[i] - numbers[i-1]) >= 10: leap_changes.append(numbers[i]) print('Leap changes:') for x in leap_changes: print(x)

Task - even numbers

A tuple of numbers is given. Extract the numbers that are even and then print them out.

Recall that the number x is even if x % 2 == 0

a = (35, 12, 32, 17, 64, 98, 77, 46, 9) even = []

Task - every third word

A tuple of strings is given. Extract strings whose indices are divisible by 3, then print them.

words = ('All', 'the', 'other', 'words', 'and', 'phrases', 'are', 'not', 'so', 'important') every_third = []

Task - below zero

A tuple of numbers is given. Extract the numbers that are negative and their predecessors are positive, then print the extracted numbers.

a = (1, -2, 3, 5, -4, -1, -3, 2, -7) extracted = []