摘要: Given a binary tree, return theinordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3return[1,3,2].Note... 阅读全文
posted @ 2015-03-17 23:23 A_zhu 阅读(168) 评论(0) 推荐(0) 编辑
摘要: Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integer or another express... 阅读全文
posted @ 2015-03-17 23:08 A_zhu 阅读(229) 评论(0) 推荐(0) 编辑