2017年10月2日
[LeetCode] Remove Duplicates from Sorted Array
摘要： Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space fo 阅读全文
posted @ 2017-10-02 22:53 immjc 阅读(107) 评论(0) 推荐(0)
[LeetCode] Palindrome Number
摘要： Determine whether an integer is a palindrome. Do this without extra space. Some hints: Could negative integers be palindromes? (ie, -1) If you are thi 阅读全文
posted @ 2017-10-02 22:16 immjc 阅读(162) 评论(0) 推荐(0)
[LeetCode] Guess Number Higher or Lower
摘要： We are playing the Guess Game. The game is as follows: I pick a number from 1 to n. You have to guess which number I picked. Every time you guess wron 阅读全文
posted @ 2017-10-02 12:04 immjc 阅读(155) 评论(0) 推荐(0)
[LeetCode] Factorial Trailing Zeroes
摘要： Given an integer n, return the number of trailing zeroes in n!. Note: Your solution should be in logarithmic time complexity. 计算n!结果的末尾有几个零。 题目要求复杂度为对 阅读全文
posted @ 2017-10-02 11:33 immjc 阅读(90) 评论(0) 推荐(0)
[LeetCode] Implement Queue using Stacks
摘要： Implement the following operations of a queue using stacks. push(x) -- Push element x to the back of queue. pop() -- Removes the element from in front 阅读全文
posted @ 2017-10-02 11:17 immjc 阅读(111) 评论(0) 推荐(0)
[LeetCode] Arranging Coins
摘要： You have a total of n coins that you want to form in a staircase shape, where every k-th row must have exactly kcoins. Given n, find the total number 阅读全文
posted @ 2017-10-02 10:44 immjc 阅读(135) 评论(0) 推荐(0)