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2710. Remove Trailing Zeros From a String

Easy

Given a positive integer num represented as a string, return the integer num without trailing zeros as a string.

Example 1:

Input: num = "51230100"
Output: "512301"
Explanation: Integer "51230100" has 2 trailing zeros, we remove them and return integer "512301".

Example 2:

Input: num = "123"
Output: "123"
Explanation: Integer "123" has no trailing zeros, we return integer "123".

Constraints:

  • 1 <= num.length <= 1000
  • num consists of only digits.
  • num doesn't have any leading zeros.

Solution

class Solution:
    def removeTrailingZeros(self, num: str) -> str:
        return num.rstrip("0")