Question

Python

Function Name: unscramble
Parameters: a string
Returns: a string
Description: Write a function, unscramble, that takes an input string, and returns a the unscrambled version of the argument.
To unscramble the string:

• When the string has an odd number of characters, middle character is the first character in the unscrambled result
• Pairs of remaining characters are added to the result, proceeding left to right from inner-most to outer-most characters.

Example Call: unscramble('3cis1') Expected result: ics31

Example Call: unscramble('ocicssol') Expected result: csiscool

Answer 1

def unscrample(strg):

#finds length of string
length=len(strg)
#for storing new string
unscrampleString=" "
#if length of string is odd
if(length%2==1):

#finds mid index
midIndex=int(length/2)
#store character at midindex
unscrampleString+=strg[midIndex]
#for each left and right charcters
for i in range(1,midIndex+1):

unscrampleString+=strg[midIndex-i]
unscrampleString+=strg[midIndex+i]

#if length of string is even
else:

#finds mid index
midIndex=int(length/2)
#a copy of mid index
newMidIndex=midIndex
#for each left and right charcters
for i in range(1,midIndex+1):

unscrampleString+=strg[midIndex-i]
unscrampleString+=strg[newMidIndex]
#increment for next character
newMidIndex+=1

return unscrampleString

print(unscrample('3cis1'))
print(unscrample('ocicssol'))