摘要:
Sort Colors II 原题链接: http://lintcode.com/zh-cn/problem/sort-colors-ii/#Given an array ofnobjects with k different colors (numbered from 1 to k), sort ... 阅读全文
摘要:
Validate Binary Search TreeGiven a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtre... 阅读全文
摘要:
Longest Common PrefixWrite a function to find the longest common prefix string amongst an array of strings.Show TagsSOLUTION 1:解法很直观。先找到最小长度,然后逐个字母遍历,... 阅读全文