class Solution {public: int
maximalRectangle(vector > &matrix) { int rows = matrix.size(); if (rows
== 0) return 0; int cols =...
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其他好文 时间:
2014-05-12 09:54:05
阅读次数:
250
Given amxnmatrix, if an element is 0, set its
entire row and column to 0. Do it in place.click to show follow up.Follow up:Did
you use extra space?A s...
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其他好文 时间:
2014-05-12 08:22:51
阅读次数:
255
Suppose a sorted array is rotated at some pivot
unknown to you beforehand.(i.e.,0 1 2 4 5 6 7might become4 5 6 7 0 1 2).You are
given a target value t...
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其他好文 时间:
2014-05-12 07:31:40
阅读次数:
332
这个题乍一看很简单,实际上还挺有技巧的。我最开始的想法是找一个特殊值标记,遇到一个0,把他所对应的行列中非零的元素标记成这个特殊值,0值保持不变,然后再从头遍历一次,碰到特殊值就转化成0。
问题是这个特殊值怎么确定,题目中没有把取值范围给出,我怀着侥幸的心理用了最大和最小的int,都被揪了出来。。如果找一个不存在于数组中的值,这个复杂度太高了。
有没有其他更好的方法呢?当然有。这个思想很巧妙,...
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其他好文 时间:
2014-05-12 06:54:39
阅读次数:
193
Best Time to Buy and Sell StockSay you have an
array for which theithelement is the price of a given stock on dayi.If you were
only permitted to compl...
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其他好文 时间:
2014-05-12 05:56:14
阅读次数:
315
Triangle
Time Limit: 3000MS
Memory Limit: 30000K
Total Submissions: 8038
Accepted: 2375
Description
Given n distinct points on a plane, your task is to find the triangl...
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其他好文 时间:
2014-05-11 06:36:44
阅读次数:
425
Search Insert Position
Total Accepted: 14091 Total
Submissions: 41005My Submissions
Given a sorted array and a target value, return the index if the target is found. If not, return the in...
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其他好文 时间:
2014-05-11 05:53:03
阅读次数:
241
本文为senlie原创,转载请保留此地址:http://blog.csdn.net/zhengsenlie
Single Number II
Total Accepted: 14224 Total
Submissions: 43648
Given an array of integers, every element appears three ti...
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其他好文 时间:
2014-05-11 03:54:46
阅读次数:
317
题目
Given a binary tree, find the maximum path sum.
The path may start and end at any node in the tree.
For example:
Given the below binary tree,...
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其他好文 时间:
2014-05-11 03:25:24
阅读次数:
298
本文为senlie原创,转载请保留此地址:http://blog.csdn.net/zhengsenlie
Maximum Depth of Binary Tree
Total Accepted: 16605 Total
Submissions: 38287
Given a binary tree, find its maximum depth.
...
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其他好文 时间:
2014-05-11 01:58:31
阅读次数:
441