摘要： Given an integer n, return the number of trailing zeroes in n!.Note: Your solution should be in logarithmic time complexity. 1 class Solution { 2 publ... 阅读全文

摘要： You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping yo... 阅读全文

摘要： Given a set of distinct integers, nums, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set must no... 阅读全文