Question

IN PYTHON

Implement a function easyCrypto() that takes as input a string and prints its encryption defined as follows: Every character at an odd position i in the alphabet will be encrypted with the character at position i + 1, and every character at an even position i will be encrypted with the character at position i - 1. In other words, ‘a’ is encrypted with ‘b’, ‘b’ with ‘a’, ‘c’ with ‘d’, ‘d’, with ‘c’, and so on. Lowercase characters should remain lowercase and upercase characters should remain uppercase.

>>> easyCrypto('abc')

'bad'

>>> easyCrypto('zoo')

'ypp'

>>> easyCrypto('Zoo')

'Ypp'

>>> easyCrypto('ToDay')

'SpCbz'

>>>

Answer 1

Note:- The output which is provided by you does not match from the give encryption algorithm. so if you have any queries then comment below.

def easyCrypto(s):
new_str=""
for i in range(len(s)):
if i%2==0:
new_str+=chr(ord(s[i])-1)
else:
new_str+=chr(ord(s[i])+1)
return new_str
  
s=input("Enter string: ")
print(easyCrypto(s))