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  1. Practice
  2. Algorithms
  3. Implementation
  4. Encryption
  5. Discussions

Encryption

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  • Schuetzl
     + 57 comments

    I see a lot of people in the discussions are using a 2d array, did anyone else solve it by simply iterating through the input string? Is there a difference in efficiency? All of my submissions were 0.09s of quicker (using Java). Is there a better way to do it?

  • samar5yadav
     + 10 comments
    import math
s=input()
sm=s.replace(" ","")
r=math.floor(math.sqrt(len(sm)))
c=math.ceil(math.sqrt(len(sm)))
for i in range(c):
    print(sm[i::c],end=" ")

    short and sweet. that's why you gotta love python

  • saurabh_jasper
     + 19 comments

    image

    image

    why is this happening?

  • sujithvm
     + 12 comments

    http://ideone.com/1zvv4T

    This is the solution i submitted. Can anyone please tell me why ideone is giving correct answer for TestCase 1 and Hackerrank is giving a different answer. No difference in code

    TestCase : feedthedog
Ideone output : fto ehg ee dd
Hackerrank editor output : fto ehg ee

  • yashzawar2000
     + 1 comment
    def encryption(s):
    c = math.ceil(math.sqrt(len(s)))

    p = ' '.join(map(lambda x: s[x::c], range(c)))

    return p
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