2014年12月4日

Binary Tree post order traversal

摘要： One: Using two stacks, stack to traversal the node, stackr to record the parent node when visiting its right-child; https://oj.leetcode.com/problems... 阅读全文

posted @ 2014-12-04 23:09 majia1949 阅读(98) 评论(0) 推荐(0) 编辑

Java substring

摘要： https://docs.oracle.com/javase/7/docs/api/java/lang/String.htmlsubstringpublicStringsubstring(intbeginIndex, intendIndex)Returns a new s... 阅读全文

posted @ 2014-12-04 02:24 majia1949 阅读(213) 评论(0) 推荐(0) 编辑

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