HackerRank Python Problem No8 || String || Swap the case
You are given a string and 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
Function Description
swap_case has the following parameters:
string s: the string to modify
Returns
string: the modified string
Input Format
A single line containing a string .
Sample Input 0
HackerRank.com presents "Pythonist 2".
Sample Output 0
hACKERrANK.COM PRESENTS "pYTHONIST 2".
Solution:
def swap_case(s):
output=''
for character in s:
if character.isupper():
output=output+character.lower()
elif character.islower():
output=output+character.upper()
else:
output=output+character
return output
One line solution:
def swap_case(s):
return s.swapcase()
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