摘要：
Given an array of integers and an integerk, find out whether there there are two distinct indicesiandjin the array such thatnums[i] = nums[j]and the d... 阅读全文
posted @ 2015-07-31 21:01 骄阳照林 阅读(107) 评论(0) 推荐(0) 编辑
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 @ 2015-07-31 20:14 骄阳照林 阅读(96) 评论(0) 推荐(0) 编辑
摘要：
Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST.According to thedefinition of LCA on Wikipedia: ... 阅读全文
posted @ 2015-07-31 19:49 骄阳照林 阅读(128) 评论(0) 推荐(0) 编辑
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 is1 -> 2 -> 3 -> ... 阅读全文
posted @ 2015-07-31 18:02 骄阳照林 阅读(93) 评论(0) 推荐(0) 编辑
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?思想:转置后半段链表节点，然后比较前半段和后半段节点的值是否相等。代码如... 阅读全文
posted @ 2015-07-31 17:38 骄阳照林 阅读(93) 评论(0) 推荐(0) 编辑
摘要：
Given an integer, write a function to determine if it is a power of two.Credits:Special thanks to@jianchao.li.fighterfor adding this problem and creat... 阅读全文
posted @ 2015-07-31 14:57 骄阳照林 阅读(117) 评论(0) 推荐(0) 编辑
摘要：
Given a sorted integer array without duplicates, return the summary of its ranges.For example, given[0,1,2,4,5,7], return["0->2","4->5","7"].Credits:S... 阅读全文
posted @ 2015-07-31 14:39 骄阳照林 阅读(128) 评论(0) 推荐(0) 编辑