欢迎关注我的豆瓣http://www.douban.com/note/484517776/对于很多大文件的增量读取,如果遍历每一行比对历史记录的输钱或者全都加载到内存通过历史记录的索引查找,是非常浪费资源的,网上有很多人的技术博客都是写的用for循环readline以及一个计数器去增量读取,这样是十分脑..
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编程语言 时间:
2015-02-16 19:49:08
阅读次数:
266
Given an integern, return the number of trailing zeroes inn!.Note:Your solution should be in logarithmic time complexity.Credits:Special thanks to@tsf...
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其他好文 时间:
2015-02-16 06:48:23
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124
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.
Calling next() will return the next smallest number in the BST.
Note...
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其他好文 时间:
2015-02-15 18:12:12
阅读次数:
175
Bug 4352808 - Dump (kglpnal) / OERI:17252 / crash from PQ with TYPE columns (文档 ID 4352808.8) 转到底部Bug 4352808 Dump (kglpnal) / OERI:17252 / crash from PQ with TYPE columns
This note gives a brief...
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其他好文 时间:
2015-02-15 12:12:39
阅读次数:
134
题目Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.If the last word does not exist, return 0.Note: A word is defined...
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其他好文 时间:
2015-02-15 10:46:47
阅读次数:
120
Given a list of non negative integers, arrange them such that they form the largest number.
For example, given [3, 30, 34, 5, 9], the largest formed number is 9534330.
Note: The result m...
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其他好文 时间:
2015-02-14 22:38:45
阅读次数:
220
Given preorder and inorder traversal of a tree, construct the binary tree.
Note:
You may assume that duplicates do not exist in the tree.
这道题要求根据二叉树的前序遍历序列和中序遍历序列构建二叉树。
举个例子:
前序序列:A B D E F C...
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其他好文 时间:
2015-02-14 13:48:00
阅读次数:
145
Given inorder and postorder traversal of a tree, construct the binary tree.
Note:
You may assume that duplicates do not exist in the tree.
这道题与上一题类似, 要求根据二叉树的后序遍历序列和中序遍历序列构建二叉树。后序遍历序列的末尾是根节点,在中...
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其他好文 时间:
2015-02-14 13:47:49
阅读次数:
216
简单的数据集输出日志85 libname saslib base 'E:\sasdata';NOTE: 已成功分配逻辑库引用名“SASLIB”,如下所示: 引擎: BASE 物理名: E:\sasdata8687 data saslib.Student;88 input name $ Age Score;89 datal...
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其他好文 时间:
2015-02-13 22:29:40
阅读次数:
205
先介绍代码技巧:
1.
public abstract class SuperClass implements SomeInterface
{
// This is the implementation of the interface method
// Note it's final so it can't be overridden
public final...
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其他好文 时间:
2015-02-13 13:27:10
阅读次数:
203