LeetCode 2710. Remove Trailing Zeros From a String
2023-05-28 15:06 作者:您是打尖兒還是住店呢 | 我要投稿
Given a?positive?integer?num?represented as a string, return?the integer?num?without trailing zeros as a string.
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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".
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Constraints:
1 <= num.length <= 1000num?consists?of only digits.num?doesn't?have any leading zeros.
使用stringbuilder的方法，因為stringbuilder有reverse的函數(shù)。
Runtime:?5 ms, faster than?50.00%?of?Java?online submissions for?Remove Trailing Zeros From a String.
Memory Usage:?44.4 MB, less than?12.50%?of?Java?online submissions for?Remove Trailing Zeros From a String.
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