unit_2

Programming 102 Practice

Unit 2 - REPL / Functions

Exercise	Solution
01 - Count the Loops	01 - Count the Loops
02 - Get Colors	02 - Get Colors
03 - Password Generator	03 - Password Generator
04 - Calculator	04 - Calculator

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Miscellaneous

Create function which takes in a list of numbers and returns a list of the squares of those numbers.

print(get_squares([3, 4, 5])) # [9, 16, 25]
print(get_squares([7, 8, 9])) # [49, 64, 81]

Create a function which takes in a string and returns a string in which each character of the first string is doubled.

print(double_string('abc')) # aabbcc
print(double_string('hello')) # hheelllloo

Create a function that uses a loop to build a list of n random single letters from A-Z, where n is a positive integer.

print(random_letters(10)) # ['H', 'M', 'E', 'D', 'M', 'Q', 'V', 'E', 'U', 'G'] 

Create a function that returns an integer representing the number of vowels in a list or string.

print(count_vowels(['A', 'X', 'C', 'E', 'M', 'I'])) # 3
print(count_vowels('CONCATENATE')) # 5

Create a function that returns a list of n random integers between 1 and 100, where n is a positive integer.

print(random_numbers(10)) # [12, 87, 62, 11, 36, 99, 35, 80, 38, 52]

Create a function that returns an integer representing the number of positive numbers in a list of numbers.

print(count_positives([7, -5, 1, -5, -9, -10, -7, 9, -2, 2])) # 4