12 2017 档案

LeetCode 168. Excel Sheet Column Title （Excel 表格列名称）
摘要：Given a positive integer, return its corresponding column title as appear in an Excel sheet. For example: 题目标签：Math 题目给了我们一个 int n， 让我们返回对应的 excel 表格 阅读全文
posted @ 2017-12-14 09:08 Jimmy_Cheng 阅读(443) 评论(0) 推荐(0)
LeetCode 69. Sqrt(x) （平方根）
摘要：Implement int sqrt(int x). Compute and return the square root of x. x is guaranteed to be a non-negative integer. Example 1: Input: 4 Output: 2 Exampl 阅读全文
posted @ 2017-12-14 03:05 Jimmy_Cheng 阅读(264) 评论(0) 推荐(0)
LeetCode 67. Add Binary （二进制相加）
摘要：Given two binary strings, return their sum (also a binary string). For example,a = "11"b = "1"Return "100". 题目标签：Math 题目给了我们两个string a 和 b，让我们把这两个二进制 阅读全文
posted @ 2017-12-12 11:56 Jimmy_Cheng 阅读(210) 评论(0) 推荐(0)
LeetCode 9. Palindrome Number （回文数字）
摘要：Determine whether an integer is a palindrome. Do this without extra space. 题目标签：Math 题目给了我们一个int x， 让我们判断它是不是回文数字。 首先，负数就不是回文数字，因为有个负号。 剩下的都是正数，只要把数字 阅读全文
posted @ 2017-12-12 08:40 Jimmy_Cheng 阅读(224) 评论(0) 推荐(0)
LeetCode 8. String to Integer (atoi) （字符串到整数）
摘要：Implement atoi to convert a string to an integer. Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below 阅读全文
posted @ 2017-12-10 06:46 Jimmy_Cheng 阅读(224) 评论(0) 推荐(0)
LeetCode 7. Reverse Integer （倒转数字）
摘要：Given a 32-bit signed integer, reverse digits of an integer. Example 1: Input: 123 Output: 321 Example 2: Input: -123 Output: -321 Example 3: Input: 1 阅读全文
posted @ 2017-12-10 05:20 Jimmy_Cheng 阅读(233) 评论(0) 推荐(0)
LeetCode 725. Split Linked List in Parts (分裂链表)
摘要：Given a (singly) linked list with head node root, write a function to split the linked list into k consecutive linked list "parts". The length of each 阅读全文
posted @ 2017-12-08 11:37 Jimmy_Cheng 阅读(495) 评论(0) 推荐(0)
LeetCode 237. Delete Node in a Linked List （在链表中删除一个点）
摘要：Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Supposed the linked list is 1 -> 2 -> 3 - 阅读全文
posted @ 2017-12-05 11:56 Jimmy_Cheng 阅读(222) 评论(0) 推荐(0)
LeetCode 234. Palindrome Linked List （回文链表）
摘要：Given a singly linked list, determine if it is a palindrome. Follow up:Could you do it in O(n) time and O(1) space? 题目标签：Linked List 题目给了我们一个 linked l 阅读全文
posted @ 2017-12-02 11:30 Jimmy_Cheng 阅读(331) 评论(0) 推荐(0)