摘要：
Reverse a singly linked list. 题目：翻转一个单向链表 很简单，不过要注意设置两个辅助指针变量 阅读全文
posted @ 2016-03-31 01:05 CSU蛋李 阅读(115) 评论(0) 推荐(0)
摘要：
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the arr 阅读全文
posted @ 2016-03-31 00:58 CSU蛋李 阅读(115) 评论(0) 推荐(0)
摘要：
Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the 阅读全文
posted @ 2016-03-31 00:49 CSU蛋李 阅读(162) 评论(0) 推荐(0)
摘要：
如果一个字母延伸到中线之上，如d或f，则称其有上出头部分。如果一个字母延伸到中线之下，如p或g， 则称其有下出头部分。编写程序，读入一个单词，输出最长的即不包含上出头部分，也不包含下出头部分单 词。 // 9_49.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"# 阅读全文
posted @ 2016-03-30 18:21 CSU蛋李 阅读(284) 评论(0) 推荐(0)
摘要：
Each rectangle is defined by its bottom left corner and top right corner as shown in the figure. Assume that the total area is never beyond the maximu 阅读全文
posted @ 2016-03-30 01:49 CSU蛋李 阅读(139) 评论(0) 推荐(0)
摘要：
Implement the following operations of a stack using queues. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. to 阅读全文
posted @ 2016-03-30 00:43 CSU蛋李 阅读(151) 评论(0) 推荐(0)
摘要：
Invert a binary tree. to Trivia:This problem was inspired by this original tweet by Max Howell: 这个题目只要实现一个递归调用即可 阅读全文
posted @ 2016-03-29 10:59 CSU蛋李 阅读(126) 评论(0) 推荐(0)
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 @ 2016-03-29 01:52 CSU蛋李 阅读(131) 评论(0) 推荐(0)
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? 像1->2->1,1->2->2->1,1,NULL这种都是回文链表 阅读全文
posted @ 2016-03-29 01:17 CSU蛋李 阅读(167) 评论(0) 推荐(0)
摘要：
Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the definition of LCA on Wikipedia 阅读全文
posted @ 2016-03-28 01:53 CSU蛋李 阅读(218) 评论(0) 推荐(0)
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