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g3101_3200.s3174_clear_digits.readme.md Maven / Gradle / Ivy

3174\. Clear Digits

Easy

You are given a string `s`.

Your task is to remove **all** digits by doing this operation repeatedly:

*   Delete the _first_ digit and the **closest** **non-digit** character to its _left_.

Return the resulting string after removing all digits.

**Example 1:**

**Input:** s = "abc"

**Output:** "abc"

**Explanation:**

There is no digit in the string.

**Example 2:**

**Input:** s = "cb34"

**Output:** ""

**Explanation:**

First, we apply the operation on `s[2]`, and `s` becomes `"c4"`.

Then we apply the operation on `s[1]`, and `s` becomes `""`.

**Constraints:**

*   `1 <= s.length <= 100`
*   `s` consists only of lowercase English letters and digits.
*   The input is generated such that it is possible to delete all digits.