题目描述:Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant digit ...
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其他好文 时间:
2015-06-23 11:35:40
阅读次数:
105
题目描述:Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting with any positive in...
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移动开发 时间:
2015-06-23 09:57:52
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197
1.类型分析:js中的数据类型有undefined,boolean,number,string,object等5种,前4种为原始类型,第5种为引用类型。代码:vara1;vara2=true;vara3=1;vara4="Hello";vara5=newObject();vara6=null;var...
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Web程序 时间:
2015-06-23 08:40:04
阅读次数:
170
1.查询多对多需求:查询用户购买的商品,包括用户信息,订单信息,订单详细信息,商品信息SQL语句:SELECT
user.id,user.username,user.address,
orders.iduser_orders_id,orders.number,orders.note,
orderdetail.idorderdetail_id,orderdetail.items_id,orderdetail.items_num..
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其他好文 时间:
2015-06-23 06:29:56
阅读次数:
120
#6 ZigZag Conversion
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 better legibility)...
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其他好文 时间:
2015-06-22 22:25:11
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181
Description
A simple cycle is a closed simple path, with no other repeated vertices or edges other than the starting and ending vertices. The length of a cycle is the number of vertices on it. Gi...
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其他好文 时间:
2015-06-22 22:21:45
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178
Description
One day,Little-Y saw many numbers standing in a row. A question suddenly appeared in her mind, ”From the L-th number to the R-th number, how many of them is a mutiple of P ? (P is a p...
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其他好文 时间:
2015-06-22 22:20:46
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148
参考http://www.johndcook.com/blog/2015/06/18/most-important-skill-in-software/When it comes to writing code, the number one most important skill is how ...
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其他好文 时间:
2015-06-22 22:15:01
阅读次数:
152
变量基本类型值有:undefined,NUll,Boolean,Number和String,这些类型分别在内存中占有固定的大小空间,他们的值,保存在栈空间。(1)值类型:数值、布尔值、null、undefined。(2)引用类型:对象、数组、函数。如果赋值的是引用类型的值,则必须在堆内存中为这个值分...
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Web程序 时间:
2015-06-22 21:55:22
阅读次数:
150
1、语句特性的一般定义:它们改变了事物。2、可以使用变量来引用函数。3、nan:not a number(非数值)4、str函数:把值转换为合理形式的字符串,repr函数会创建一个字符串,它以合法的python表达式的形式来表示值。str、repr和反引号(``)是把python值转换成字符串的三种...
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编程语言 时间:
2015-06-22 19:20:31
阅读次数:
133