human
Make the string lexicographically smallest and non palindromic by replacing exactly one character | Function to find the required string.
Length of the string.
Iterate till half of the string.
Replacing a non ' a ' char with 'a.
Check if there is no ' a ' in string we replace last char of string by 'b.
If the input is a single character.
Driver Code"
How can the above be solved in Python?
 ... What is a code to make the string lexicographically smallest and non palindromic by replacing exactly one character and the other steps required?
assistant
#Here is code to make the string lexicographically smallest and non palindromic by replacing exactly one character and the other steps required.
 def findStr ( S ) :
	S = list ( S )
	n = len ( S )
	for i in range ( 0 , n // 2 ) :
'
	if S [ i ] != ' a ' :
		S [ i ] = ' a '
		return ( ' ' . join ( S ) )
'
	S [ n - 1 ] = ' b '
	if n < 2 :
		return ' - 1'
	else :
		return ( ' ' . join ( S ) )
if __name__ == ' _ _ main _ _ ' :
	str1 = ' a '
	print ( findStr ( str1 ) )
	str2 = ' abccba '
	print ( findStr ( str2 ) )