摘要：
class Solution {public: int titleToNumber(string s) { int len = s.length(); if(len == 0) { return 0; } retur... 阅读全文
摘要：
class Solution {public: int trailingZeroes(int n) { int count = 0; while (n) { count += n / 5; n /= 5; }... 阅读全文