2016年9月30日
Sum of Left Leaves
摘要： Find the sum of all left leaves in a given binary tree. Example: 3 / \ 9 20 / \ 15 7 There are two left leaves in the binary tree, with values 9 and 1 阅读全文
posted @ 2016-09-30 00:27 amazingzoe 阅读(302) 评论(0) 推荐(0)