Problem Brief
Rearrange String
OA
You have a string S. Your task is to rearrange some characters of the string
(if needed) so that S[i] is not equal to S[L - i - 1] for each
0 <= i < (L - 1) / 2, where L is the length of S. If
multiple rearrangements exist, return the one that comes earliest alphabetically. If there
is no answer, print 'impossible.'
Input
The input contains the string S.
Output
Print 'impossible' if there is no answer. Otherwise, print a lexicographical first string that satisfies the given requirements.
1Example 1
Input
s = "abca"
Output
"aabc"
Explanation
No explanation is provided for now 😳🔫
As always, I will add it once find any. Or if you happen to know about it, feel free to dm Groot!
Many thanks in advance! 🫶
Constraints
Limits and guarantees your solution can rely on.
1 <= L <= 10^4