HackerRank sWAP cASE problem solution in python | python problem solution
Table of Contents
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
Complete the swap_case function in the editor below.
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 .
Constraints
Sample Input 0
HackerRank.com presents "Pythonist 2".
Sample Output 0
hACKERrANK.COM PRESENTS "pYTHONIST 2".
Problem solution in Python 2 programming.
# Enter your code here. Read input from STDIN. Print output to STDOUT
name = raw_input()
print ''.join(c.lower() if c.isupper() else c.upper() for c in name)Problem solution in Python 3 programming.
def swap_case(s):
return s.swapcase()Problem solution in pypy programming.
def swap_case(s):
res = ''
for ch in s:
if ch.isupper():
res += ch.lower()
else:
res += ch.upper()
return resProblem solution in pypy3 programming.
def swap_case(s):
result = []
for letter in s:
if letter == letter.lower():
result.append(letter.upper())
elif letter == letter.upper():
result.append(letter.lower())
else:
result.append(letter)
return ''.join(result)
