【题目】
Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place.
【题意】
给定一个mXn的矩阵，如果其中的元素为0，则对应的行和列都用0填充。
不能申请额外的空间。
【思路】
第一行和第一列空出来标记需要置0的列和行
第一遍扫描：
扫描第一行，判断第一行是否需要清零
...
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其他好文 时间：
2014-06-05 08:07:11
阅读次数：
229
1、Maximum Depth of Binary Tree
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.
clas...
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其他好文 时间：
2014-06-02 23:13:22
阅读次数：
290
【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.
【题意】
给定一个由0和1填充的二维矩阵，找一个全是1的最大矩形
【思路】
扫描二维矩阵，凡是扫到值为1的块时候，以当前块为矩形的左上角区块拓展，找最大矩阵。
先找出以每个“1”区块为左上角区块的最大矩形，然后求出最大全局的最大矩...
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其他好文 时间：
2014-06-02 23:08:07
阅读次数：
289
More praise for FLIPPED"We flipped over this
fantastic book, its gutsy girl Juli and its wise, wonderful ending."--The
Chicago Tribune"Delightful! Del...
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其他好文 时间：
2014-06-02 20:03:59
阅读次数：
2055
Description
Golden ratio base (GRB) is a non-integer positional numeral system that uses the golden ratio (the irrational number (1+√5)/2 ≈ 1.61803399 symbolized by the Greek letter φ) as its base....
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其他好文 时间：
2014-06-01 15:38:24
阅读次数：
252
【题目】
Given a binary tree, return the inorder traversal of its nodes' values.
For example:
Given binary tree {1,#,2,3},
1
2
/
3
return [1,3,2].
Note: Recursive solution is trivial, could you do it iteratively?
confused what "{1,#,2...
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其他好文 时间：
2014-06-01 13:01:23
阅读次数：
279
Given a linked list, swap every two adjacent nodes and return its head.
For example,
Given 1->2->3->4, you should return the list as 2->1->4->3.
Your algorithm should use only constant space....
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其他好文 时间：
2014-06-01 10:41:23
阅读次数：
242
Given a linked list, reverse the nodes of a linked list k at a time and return its modified list.
If the number of nodes is not a multiple of k then left-out nodes in the end should remain as it is...
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其他好文 时间：
2014-06-01 09:05:42
阅读次数：
271
For screening materials for different sizes,
vibrating screen is playing its role. After separating, the aggragates that can
meet your requirements wi...
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其他好文 时间：
2014-05-31 15:20:11
阅读次数：
205
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 le...
分类：
其他好文 时间：
2014-05-30 15:03:42
阅读次数：
237
