摘要: Problem:Given a string, find the length of the longest substring T that contains at most 2 distinct characters.For example, Given s =“eceba”,T is "ece... 阅读全文
posted @ 2015-09-10 11:27 airforce 阅读(177) 评论(0) 推荐(0) 编辑
摘要: Problem:A strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside down).Write a function to determine if a n... 阅读全文
posted @ 2015-09-10 09:37 airforce 阅读(159) 评论(0) 推荐(0) 编辑
摘要: Problem:Given a sorted integer array where the range of elements are [lower,upper] inclusive, return its missing ranges.For example, given[0, 1, 3, 50... 阅读全文
posted @ 2015-09-10 08:43 airforce 阅读(407) 评论(0) 推荐(0) 编辑
摘要: Problem:Given a string, determine if a permutation of the string could form a palindrome.For example,"code"-> False,"aab"-> True,"carerac"-> True.Gene... 阅读全文
posted @ 2015-09-10 07:34 airforce 阅读(854) 评论(0) 推荐(0) 编辑
摘要: Problem:There is a fence with n posts, each post can be painted with one of the k colors.You have to paint all the posts such that no more than two ad... 阅读全文
posted @ 2015-09-10 06:49 airforce 阅读(1621) 评论(0) 推荐(1) 编辑