It was proposed by Christian Goldbach that every odd composite number can be written as the sum of a prime and twice a square.
9 = 7 + 2×12
15 = 7 + 2×22
21 = 3 + 2×32
25 = 7 + 2×32
27 = 19 + 2...
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数据库 时间：
2015-06-07 11:12:04
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148
centos6.5iptables默认配置#Firewallconfigurationwrittenbysystem-config-firewall
#Manualcustomizationofthisfileisnotrecommended.
*filter
:INPUTACCEPT[0:0]
:FORWARDACCEPT[0:0]
:OUTPUTACCEPT[0:0]
-AINPUT-mstate--stateESTABLISHED,RELATED-jACCEPT
-AINPUT-picmp-jA..
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系统相关 时间：
2015-06-06 23:43:23
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245
Problem DescriptionEddy usually writes articles ,but he likes mixing the English letter uses, for example "computer science" is written frequently "co...
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其他好文 时间：
2015-06-05 19:09:09
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131
DescriptionIgnatius likes to write words in reverse way. Given a single line of text which is written by Ignatius, you should reverse all the words an...
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其他好文 时间：
2015-06-05 19:08:09
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112
1 题目：The string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed fo...
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其他好文 时间：
2015-06-05 17:28:07
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114
1、weka的历史 1992年末，新西兰怀卡托大学计算机科学系Ian Written博士申请基金。 1993年获新西兰政府资助，并于同年开发出接口和基础架构。 1994年发布了第一个weka的内部版本。 1996年，第一个公开版本weka2.1发布。weka的早期版本主要采用C语言编写。 ...
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其他好文 时间：
2015-06-04 15:08:17
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291
ZigZag
Conversion
一、题目如下：
The string "PAYPALISHIRING" is
written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for b...
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编程语言 时间：
2015-06-04 01:05:10
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207
Surprisingly there are only three numbers that can be written as the sum of fourth powers of their digits:
1634 = 14 + 64 + 34 + 44
8208 = 84 + 24 + 04 + 84
9474 = 94 + 44 + 74 + 44
As 1 = 14 ...
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其他好文 时间：
2015-06-03 10:01:49
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106
No.6 ZigZag ConversionThe string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you may want to display this patt...
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其他好文 时间：
2015-06-02 17:21:25
阅读次数：
109
