2017年6月25日
leetcode-Evaluate the value of an arithmetic expression in Reverse Polish Notation
摘要： leetcode 逆波兰式求解 Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are+,-,*,/. Each operand may be an integer 阅读全文
posted @ 2017-06-25 23:20 银河末班车 阅读(268) 评论(0) 推荐(0)
leetcode-Given a binary tree, find its minimum depth
摘要： 第一题 Given a binary tree, find its minimum depth.The minimum depth is the number of nodes along the shortest path from the root node down to the neares 阅读全文
posted @ 2017-06-25 23:14 银河末班车 阅读(538) 评论(0) 推荐(0)