题目
Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area.
方法
使用两个矩阵，分别记录每一行连续的1的个数以及每一列连续的1的个数。
public int maximalRec...
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其他好文 时间：
2014-06-11 00:24:51
阅读次数：
343
题目：Maximum Depth of Binary TreeGiven a binary tree,
find its maximum depth.The maximum depth is the number of nodes along the
longest path from the ro...
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其他好文 时间：
2014-06-10 10:09:13
阅读次数：
237
HTTP Error 500.21 - Internal Server ErrorHandler
"WebServiceHandlerFactory-Integrated" has a bad module "ManagedPipelineHandler"
in its module list.解决...
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其他好文 时间：
2014-06-09 18:55:31
阅读次数：
198
题目
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).
For example, this binary tree is symmetric:
1
/ 2 2
/ \ / 3 4 4 3
...
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其他好文 时间：
2014-06-08 18:12:04
阅读次数：
248
题目
Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and alternate between).
For example:
G...
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其他好文 时间：
2014-06-08 17:29:07
阅读次数：
315
题目
Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level).
For example:
Given binary tree {3,9,20,#,#,15,7},
3
/ \...
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其他好文 时间：
2014-06-08 16:38:02
阅读次数：
194
题目
Given a binary tree, find its maximum depth.
The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.
方法
使用DFS对树进行遍...
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其他好文 时间：
2014-06-08 10:26:33
阅读次数：
207
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...
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其他好文 时间：
2014-06-08 09:23:34
阅读次数：
230
Description
A robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move are laid down in a grid. The possible instructions are
...
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其他好文 时间：
2014-06-08 04:38:32
阅读次数：
386
A perfect number is a number for which the sum of its proper divisors is exactly equal to the number. For example, the sum of the proper divisors of 28 would be 1 + 2 + 4 + 7 + 14 = 28, which means th...
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其他好文 时间：
2014-06-08 04:05:14
阅读次数：
315
