Can you solve this real interview question? Remove Trailing Zeros From a String - 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" E
numdoesn't have any leading zeros. 使用stringbuilder的方法,因为stringbuilder有reverse的函数。 classSolution{publicStringremoveTrailingZeros(String num){StringBuilder sb=newStringBuilder();int n=num.length();int cnt=0;for(int i=n-1;i>=0;i--){if(num.charAt(i)=='0'&cnt==0){continue;}else...