sWAP cASE

geeks July 29, 2017
You are given a string . Your task is to swap cases. In other words, convert all lowercase letters to uppercase letters and vice versa.
For Example:
Www.HackerRank.com → wWW.hACKERrANK.COM
Pythonist 2 → pYTHONIST 2
Input Format
A single line containing a string .
Constraints
Output Format
Print the modified string .
Sample Input
HackerRank.com presents "Pythonist 2".
Sample Output
hACKERrANK.COM PRESENTS "pYTHONIST 2".


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8 Comments

  1. Unknown13 August 2019 at 23:23

    explain , return(' ').join(map(change,s))

    ReplyDelete
  2. Coder page solve30 April 2020 at 16:59

    def change(x):
    if str.islower(x):
    return str.upper(x)
    else:
    return str.lower(x)
    def swap_case(s):
    return ('').join(map(change,s))
    input give than explain

    ReplyDelete
  3. Md Rizwan Rabbani20 May 2020 at 14:42

    def swap_case(s):
    new=[ch.lower() if ch.isupper() else ch.upper() for ch in s]
    new=''.join(new)
    return new

    if __name__ == '__main__':
    s = input()
    result = swap_case(s)
    print(result)

    Easiest and efficient way is to use list comprehension

    ReplyDelete
  4. Aastha Singh8 August 2020 at 19:42

    This comment has been removed by the author.

    ReplyDelete
  5. Aastha Singh8 August 2020 at 19:54

    This comment has been removed by the author.

    ReplyDelete
  6. Aastha Singh8 August 2020 at 19:57

    Here is my solution for swap case. i assure you this is the easiest way and does not use map or join .Feel free to mail at aasthas114@gmail.com for for queries.

    def swap_case(s):
    new = ""
    for i in range(len(s)):
    if str.isupper(s[i]):
    new = new + str.lower(s[i])

    elif str.islower(s[i]):
    new = new + str.upper(s[i])

    else:
    new = new + str(s[i])

    return (new)


    if __name__ == '__main__':
    s = input()
    result = swap_case(s)
    print(result)

    ReplyDelete
  7. Unknown15 August 2020 at 09:39

    def swap_case(s):
    a=""
    for i in s:
    if i==i.lower():
    a=a+(i.upper())
    else:
    a=a+(i.lower())
    return (a)

    ReplyDelete