Python for beginners workbook: WORKBOOK WITH QUESTIONS, SOLUTIONS AND PROJECTS. PRACTICE AND LEARN CODING WITH A FAST METHOD (1 2) by Brian Dayton

Author:Brian Dayton [Dayton, Brian]
Language: eng
Format: azw3, epub
Published: 2020-05-18T16:00:00+00:00

print(py_solution().int_to_Roman(1))

print(py_solution().int_to_Roman(4000))

Exercise 2:

Now that we have had a chance to write out our first class, it is time for us to look at how to work with something else and make a different class. With this one, we need to write out a class in Python that will help us to find the validity of a few brackets and parentheses. We are going to check for all three types of brackets to see how they work. Using some of the examples that we did before in the last exercise, you should be able to go through here and work on the coding. See if you can complete this and get some good results on your own as well.

Exercise 3:

Next, we move on to another type of Python class that we can work on too. This one will help us to find the elements, in a pair, that are in our given array. We are going to do this to find the indices out of two particular numbers we choose and we want their sum to equal the target number that we pick out. The code we can use to make this one happen includes:

class py_solution:

def twoSum(self, nums, target):

lookup = {}

for i, num in enumerate(nums):

if target - num in lookup:

return (lookup[target - num], i )

lookup[num] = i

print("index1=%d, index2=%d" % py_solution().twoSum((10,20,10,40,50,60,70),50))

Exercise 4:

The last exercise that we will take a look at here is how to write out a class in Python that will help us find three elements. What is unique about this is that they will make the sum tat you want to work with be zero, as long as it is from the real numbers of n. This one will come in with a few more parts than we will see with some of the other options, but many classes that we want to create will be similar in nature. Make sure to give this one a try and see what answers you are able to get out of it along the way.

The classes are a bit longer than some of the other codes that we have worked with, but this is because there is so much information that we are trying to put into them. Take some time to practice how these works and what we can do with them to make these work out the way that is best for us.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.