# [Solution] Largest Palindromic Number solution leetcode

## Largest Palindromic Number solution leetcode

Largest Palindromic Number solution leetcode – You are given a string `num` consisting of digits only.

Return the largest palindromic integer (in the form of a string) that can be formed using digits taken from `num`. It should not contain leading zeroes.

Notes:

• You do not need to use all the digits of `num`, but you must use at least one digit.
• The digits can be reordered.

## Largest Palindromic Number solution leetcode

```Input: num = "444947137"
Output: "7449447"
Explanation:
Use the digits "4449477" from "444947137" to form the palindromic integer "7449447".
It can be shown that "7449447" is the largest palindromic integer that can be formed.
```

## Largest Palindromic Number solution leetcode

```Input: num = "00009"
Output: "9"
Explanation:
It can be shown that "9" is the largest palindromic integer that can be formed.
Note that the integer returned should not contain leading zeroes.
```

## Largest Palindromic Number solution leetcode

• `1 <= num.length <= 105`
• `num` consists of digits.