摘要: Given two wordsword1andword2, find the minimum number of steps required to convertword1toword2. (each operation is counted as 1 step.)You have the fol... 阅读全文
posted @ 2014-10-21 05:26 Phoebe815 阅读(145) 评论(0) 推荐(0)
摘要: Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 1 /** 2 * Definition for singly-linked ... 阅读全文
posted @ 2014-10-21 02:44 Phoebe815 阅读(160) 评论(0) 推荐(0)
摘要: Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. After re... 阅读全文
posted @ 2014-10-21 02:06 Phoebe815 阅读(150) 评论(0) 推荐(0)
摘要: Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.Solution:... 阅读全文
posted @ 2014-10-21 01:43 Phoebe815 阅读(129) 评论(0) 推荐(0)
摘要: Given a sorted linked list, delete all duplicates such that each element appear onlyonce.For example,Given1->1->2, return1->2.Given1->1->2->3->3, retu... 阅读全文
posted @ 2014-10-21 01:32 Phoebe815 阅读(117) 评论(0) 推荐(0)
摘要: Given a linked list, swap every two adjacent nodes and return its head.For example,Given1->2->3->4, you should return the list as2->1->4->3.Your algor... 阅读全文
posted @ 2014-10-21 01:13 Phoebe815 阅读(102) 评论(0) 推荐(0)