2015年9月20日
[LeetCode#227] Basic Calculator II
摘要： Problem:Implement a basic calculator to evaluate a simple expression string.The expression string contains onlynon-negativeintegers,+,-,*,/operators a... 阅读全文
posted @ 2015-09-20 23:18 airforce 阅读(463) 评论(0) 推荐(0)
[LeetCode#87] Scramble String
摘要： Problem:Given a strings1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.Below is one possible repres... 阅读全文
posted @ 2015-09-20 22:16 airforce 阅读(298) 评论(0) 推荐(0)
[LeetCode#280] Wiggle Sort
摘要： Problem:Given an unsorted arraynums, reorder itin-placesuch thatnums[0] = nums[2] = nums[2] = nums[i+1]Note: i is an odd number. Solution 1:public cla... 阅读全文
posted @ 2015-09-20 12:01 airforce 阅读(504) 评论(0) 推荐(0)
[LeetCode#272] Closest Binary Search Tree Value II
摘要： Problem:Given a non-empty binary search tree and a target value, findkvalues in the BST that are closest to the target.Note:Given target value is a fl... 阅读全文
posted @ 2015-09-20 10:58 airforce 阅读(413) 评论(0) 推荐(0)