2014年6月4日
leetcode--Remove Duplicates from Sorted List II
摘要： Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list.For example,Given1->2->3-... 阅读全文
posted @ 2014-06-04 12:41 Averill Zheng 阅读(112) 评论(0) 推荐(0)
leetcode--Remove Duplicates from Sorted List
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 @ 2014-06-04 12:11 Averill Zheng 阅读(99) 评论(0) 推荐(0)
leetcode--Longest Valid Parentheses
摘要： Given a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substring.For"(()", the longest... 阅读全文
posted @ 2014-06-04 11:13 Averill Zheng 阅读(131) 评论(0) 推荐(0)
leetcode--Sum Root to Leaf Numbers
摘要： Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a number.An example is the root-to-leaf path1->2->3which rep... 阅读全文
posted @ 2014-06-04 05:55 Averill Zheng 阅读(127) 评论(0) 推荐(0)