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题目： Given an integer n, return the number of trailing zeroes in n!. 给定一个整数n，返回n！中的尾随零数。 Example 1: Example 2: Note: Your solution should be in logarit 阅读全文
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题目： We are playing the Guess Game. The game is as follows: 我们正在玩猜猜游戏。 游戏如下： I pick a number from 1 to n. You have to guess which number I picked. 我从1到 阅读全文
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题目： Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. 给定排序的数组nums，就地删除重复项，使 阅读全文
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题目： The count-and-say sequence is the sequence of integers with the first five terms as following: count-and-say序列是整数序列，前五个术语如下： 1 is read off as "one 阅读全文