1256. Encode Number

https://leetcode.com/problems/encode-number

Description

Given a non-negative integer num, Return its encoding string.

The encoding is done by converting the integer to a string using a secret function that you should deduce from the following table:

Example 1:

**Input:** num = 23

**Output:** "1000"

Example 2:

**Input:** num = 107

**Output:** "101100"

Constraints:

• 0 <= num <= 10^9

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