2015年10月21日
LeetCode OJ：Basic Calculator（基础计算器）
摘要： Implement a basic calculator to evaluate a simple expression string.The expression string may contain open(and closing parentheses), the plus+or minus... 阅读全文
posted @ 2015-10-21 22:22 eversliver 阅读(573) 评论(0) 推荐(0)
LeetCode OJ：Binary Tree Preorder Traversal（前序遍历二叉树）
摘要： Given a binary tree, return thepreordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3} 1 \ 2 / 3return[1,2,3].前序遍历二叉... 阅读全文
posted @ 2015-10-21 20:04 eversliver 阅读(305) 评论(0) 推荐(0)
LeetCode OJ：Summary Ranges（概括区间）
摘要： Given a sorted integer array without duplicates, return the summary of its ranges.For example, given[0,1,2,4,5,7], return["0->2","4->5","7"].就是概括区间的方式... 阅读全文
posted @ 2015-10-21 19:08 eversliver 阅读(227) 评论(0) 推荐(0)
LeetCode OJ：Subsets（子集）
摘要： Given a set of distinct integers,nums, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set must not... 阅读全文
posted @ 2015-10-21 09:19 eversliver 阅读(283) 评论(0) 推荐(0)