Largest Palindromic Number
Try to solve the Largest Palindromic Number problem.
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Statement
You are given a string num
 consisting of digits from num
. The resulting palindromic number must not have leading zeros.
Note: You may reorder the digits freely, and you must use at least one digit from theÂ
num
string.
Constraints:
num.length
num
 consists of digits
Example
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