Print an array in the range of a user input

Question

Below is my code:

 n = int(input())

 for i in range(n):

    d = int(input())

    for i in range(d):
        a = list(map(int,input().split()))
    print(a)

But I want my code to do this, for example: Suppose d = 4 is my user input Now, I want (random example) a = [1, 4 , 8, 19]. That too from user input. This is an example of the output of. I am not able to frame the question properly. So, here is the desired output:

3 #input for n

2 #input for d

[4,6] #output for a

5 #input for 2nd d

[4,2,1,4,7] #output for a, 5 elements as d = 5

2 #input for last d, as 'n' was 3

[1,9] #(the last array a)

Your code is already getting a list as user input and storing it in `a`. What's the problem? — Aran-Fey, Apr 04 '18 at 16:54
Possible duplicate of [Get a list of numbers as input from the user](https://stackoverflow.com/questions/4663306/get-a-list-of-numbers-as-input-from-the-user) — FHTMitchell, Apr 04 '18 at 17:16
Can you now get my question? Please check the desired output. Thank you. — Gunjan Patait, Apr 04 '18 at 18:33

score 0 · Answer 1 · answered Apr 04 '18 at 17:13

0

Your code can be simplified. It seems like you are trying to combine the 2 very different methods of collecting data below. You should choose one or the other.

Individual entries

n = int(input('How many numbers?\n'))

res = []
for i in range(1, n+1):
    res.append(int(input('Enter number{0}\n'.format(i))))

Simultaneous entries

n = int(input('How many numbers?\n'))

in_str = input('Enter the numbers separated by space:\n')

res = list(map(int, in_str.split()))

answered Apr 04 '18 at 17:13

jpp

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Please **[edit](https://stackoverflow.com/posts/49656317/edit)** your question, do not put code in comments. – jpp Apr 04 '18 at 17:25
Sorry, I just did that. please check it out. – Gunjan Patait Apr 04 '18 at 17:39
@GunjanPatait, nope still not clear how you got all those numbers. – jpp Apr 04 '18 at 17:39
There need to be two for loops and the array must be simultaneous. The first loop runs for "n" and inside it, the second for loop runs for "d".Help me out, please. – Gunjan Patait Apr 04 '18 at 18:17
And what's your desired output? Update your question, please. – jpp Apr 04 '18 at 18:18
Can you get my desired output now? sir! – Gunjan Patait Apr 04 '18 at 18:26

score 0 · Answer 2 · answered May 29 '20 at 04:35

Problems with your code

you are using same i variable in both for loop
a = list(map(int,input().split())) scans whole line, so no need of for loop

Solution

n = int(input())

for i in range(n):

    d = int(input())

    a = list(map(int,input().split()))
    print(a)

Output

2
5
1 2 3 4 5
[1, 2, 3, 4, 5]  # Output
2   
1 2
[1, 2]  # output

If you got your answer please accept it else comment What's the problem?

Print an array in the range of a user input

2 Answers2

Problems with your code

Solution

Output