【题目】
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root).
For example:
Given binary tree {3,9,20,#,#,15,7},
3
/ 9 20
/ 15 7
return its b...
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其他好文 时间:
2014-06-20 09:42:30
阅读次数:
224
先上用来生成Tree的JSON数据 [ { "id": "Root", "name":
"资源目录" }, { "id": "PF", "name": "批发价格", "parent": "Root" }, { "id": "PF93",
"name": "93#", "parent": "
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其他好文 时间:
2014-06-13 13:49:33
阅读次数:
442
Given an array where elements are sorted in
ascending order, convert it to a height balanced BST./** * Definition for binary
tree * public class TreeN...
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其他好文 时间:
2014-06-11 21:58:10
阅读次数:
300
Map总结:tree排序,hsah保证唯一性Map集合特点:该集合存储键值对,一对一对往里存,而且要保证键的唯一性。Map和Set很像,Set底层就是使用了Map集合。Map没有迭代器,要靠keySet和entrySet方法返回Set,在用迭代器。Map
|--Hashtable:底层是哈希表数据结...
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其他好文 时间:
2014-06-11 09:42:38
阅读次数:
351
Incomputer science, aheapis a
specializedtree-baseddata structurethat satisfies theheap property:If A is a
parentnodeof B then the key of node A is or...
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其他好文 时间:
2014-06-11 09:23:53
阅读次数:
376
viewfunction init_tree(product_name) { var
htmlobj=$.ajax({url: "get_all_file?param=" + param_value, async: false}); var
jsonNodes = htmlobj.respon...
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Web程序 时间:
2014-06-11 08:03:40
阅读次数:
245
pstree shows running processes as a tree. The tree
is rooted at either pid or init if pid is omitted. If a user name is specified,
all process trees r...
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系统相关 时间:
2014-06-11 07:46:47
阅读次数:
522
1. 查找和排序查找:顺序查找、二分查找、二叉搜索树、哈希表顺序查找:T(n) = O(n)
std::find二分查找:T(n) = O(log n) std::binary_search std::lower_bound
std::upper_bound哈希表: T(n) = O...
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其他好文 时间:
2014-06-11 07:45:31
阅读次数:
250
Given a singly linked list where elements are
sorted in ascending order, convert it to a height balanced BST.public class
Solution { /** Convert th...
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其他好文 时间:
2014-06-10 00:22:44
阅读次数:
259
The gray code is a binary numeral system where
two successive values differ in only one bit.Given a non-negative
integernrepresenting the total number...
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其他好文 时间:
2014-06-10 00:01:38
阅读次数:
392