I am facing problem to take number of inputs from user then storing it in an array,how to print this array
n = int(input())
arr = map(int, input().split())
Thanks in advance for the help
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Are you asking why it prints ` – Carcigenicate Aug 06 '19 at 16:48
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What is the purpose of `n`? You never use it. – John Gordon Aug 06 '19 at 16:50
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@JohnGordon in a lot of programming contest problems, the input often consists of the size of the list `n` followed by `n` numbers so that you can initialize an array of the proper size ahead of time (assuming you aren't using Python). – Calvin Godfrey Aug 06 '19 at 16:53
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This is not the full code,i just want to know what does the second line actually doing and how to print the user input in an array – Pragati Aug 06 '19 at 16:54
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Can you give an example of what the input looks like? – Calvin Godfrey Aug 06 '19 at 17:18
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n=5 and arr should be [2,1,6,6,5] – Pragati Aug 06 '19 at 17:21
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1But what does the *actual* input look like? What are you parsing? What is the user typing in? – Calvin Godfrey Aug 06 '19 at 17:37
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In Python, map takes a function as one argument and a list as the second argument and applies that function to all of the items in the list. The catch is that this application is lazy, meaning that it returns a map object (which is a generator), and doesn't actually apply the function until you try to iterate through arr.
In your case, if you want to print out the contents of arr, you can simply do:
arr = list(map(int, input().split()))
Calvin Godfrey
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Not working,its just printing the first element of the list & nothing else.still thanks – Pragati Aug 06 '19 at 17:01