Skip to main content

Inputs and Outputs in Python 3

Recently, I was training on some libraries in Python 3 and I noticed that the most difficult was not the questions, but the way you are going to take your input and present your output. 
So, I'd like to show some ways I've learned and it may help you, too. 

1. Lists: 

Taking separated input like: 

2 3 4 5 6 7 and put them into the list can be done by map function: 

a = list (map(int, input().split()))
or 
a = tuple(map(int, input().split()))

same if inputs are float
- I will say that you don't need to do the same if the inputs were string! because the string is easily added into a list like: 
a = input().split() < it put them directly into a list> 
___________________________

If you'll take 2 separated numbers and you are going to use just one of them, so: 
you may use one of those ways: 
n, m = list(map(int, input().split()))
and use them by their names n, m, and so on. 
or you can use: 
p = input().split()
them if you wanna use the first number you take it as int(p[0]) 
__________________________
Arrays: 

Look at the line no.4 wt is between [] is called list comprehension (search about the syntax)
By this way, I can take inputs like the following and put it into an array (use NumPy because python doesn't support matrices) 

Sometimes, we use *map(int, input().split()) but with * and without a list when we directly put the input into a function. So, I think we use * when doing a function inside a function.
________________________

OutPuts 

I don't have any specific notices on outputs unless Formate
 "{}, Is my age".formate(age)
when age is a function when "--" is a string. we may put some details like: 
Here, we put the types and significance of the represented values. 
______________________________
One line code:
Yes, we like to write the fewest number of lines into the notepad. If we want to print more than a line of outputs, how could we achieve that? 
It is so easy use: 
sep = '\n' after putting all your printed function separated by commas, ex: 
print(n, m, k, sep = '\n')
out put = 
k
(with values of course)  
______________________________
Also a way with Numpy: 
numpy.set_printoptions(legacy='some numbers') or numpy.set_printoptions(sign='  ') 
and there are many arguments in this function. It needs to be searched. So, friends! 

I am waiting for your search results. Put the links in the comments, I'd like to check them all. 

This is the first comment from you, guys: 

Very good comments. Sometimes, I just think about the matter from the contest's view as hackerrank makes me always think.

Comments

Popular posts from this blog

Miserable

 This one word could describe my life right now. I am writing this because of the last book I read talking about how to re-organize your life. 32 days ago, my dad has gone. In the beginning, I couldn't cry. Now, I can't stop crying about everything. Everything reminds me of him. His favorite stuff became my nightmare. I dream of him every day, too. One week from his death, I took my exams. I didn't remember how I did in them. I knew they were not how I supposed to do, but I am not aware of how I did. I wish I could have cried when he passed. I wanted to cry a lot but I didn't have the ability to face myself with the fact of his death.  He died between my shoulders. I just saw his color turned to yellow like how my grandpa seemed before death. I heard my brother told him some prayers that a person says before death and I just shouted at him to stop. I spent time squeezing his feet to make him shocked. I even talked to him, I said don't go, don't leave me, not now...

My First year in CSE

I always wanted to be in Computer Science. I never tried to challenge myself in this area, too. I felt like I always have this barrier not to go through it. I'm so happy that in the previous 4 months I pushed myself fast and strongly to go in this field. There is a lot of paths in front of me.  I was afraid that most of the students around me in my department have skills more than me. They are so smart and hardworking, too.  In these 4 months I've tried to:  1. get 4 stars in problem-solving on  Hackerrank 2. publish my first website on  GitHub 3. edit my account on LinkedIn 4. start my program in frontend development on Coursera 5. take more than a course on C 6. Start a course related to computer architecture.  7. Start reading about Deep Learning But, How under quarantine I could do all of that.  First of all, I knew how this is a competitive field.  1. I put a counter to know how much time I ...

How to upload your work on Github (Easy and Fast)

I had a problem with uploading any of my work on Github. Amr El-Naggar, A friend of mine, helped me to upload it fast.  Here we go! Consider this is the file I want to take some project from to upload on my Github:  Click on the bar to write sth new:  Write "cmd" to pop up your command shell Open your Github Profile > Repositories > New > write the name > Create Copy the URL  Back to your Command shell and write:  (only the first time)  git init git add . git commit -m "Any message to say what you have done in this commit" (only the first time)  git remote add origin xxxxxxxxx (replace xxx with the link of the repo, ex: https://github.com/MennaEwas/Numerical-Labs)  git push -u origin master if you edited any files: git add . git commit -m "Any message to say what you have done in this commit" git push -u origin master You can easily copy and paste the lines You have to see Done!  Check the uploaded Files:  Note: If you want t...