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Determining complexity for recursive functions (Big O notation)
...ften Big O notation and complexity analysis uses base 2.
void recursiveFun4(int n, int m, int o)
{
if (n <= 0)
{
printf("%d, %d\n",m, o);
}
else
{
recursiveFun4(n-1, m+1, o);
recursiveFun4(n-1, m, o+1);
}
}
Here, it's O(2^n), or exponential, since...
How does Python manage int and long?
...on 2: sys.maxint contains the maximum value a Python int can hold.
On a 64-bit Python 2.7, the size is 24 bytes. Check with sys.getsizeof().
Python 3: sys.maxsize contains the maximum size in bytes a Python int can be.
This will be gigabytes in 32 bits, and exabytes in 64 bits.
Such a large int...
从网购到火车票，对比淘宝12306网为何如此烂？ - 大数据 & AI - 清泛网 - ...
...，其中无线支付近900万笔，支付宝核心数据库集群处理了41亿个事务，执行285亿次SQL，生成15TB日志，访问1931亿次内存数据块，13亿个物理读，核心MySQL集群一天支持了20亿个事务。
淘宝的技术人员以实际行动让网民折服，虽然在...
Undefined reference to pthread_create in Linux
...
14 Answers
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Returning an array using C
...Ed S.Ed S.
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Find all tables containing column with specified name - MS SQL Server
...
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Search Tables:
SELECT c.name AS 'ColumnName'
,t.name AS 'TableName'
FROM ...
How to construct a relative path in Java from two absolute paths (or URLs)?
...
ryenus
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answered Oct 15 '08 at 17:32
Adam CrumeAdam Crume
...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...个数据表 Collection1 存储了 1T 数据，压力太大了！在分给4个机器后，每个机器都是256G，则分摊了集中在一台机器的压力。也许有人问一台机器硬盘加大一点不就可以了，为什么要分给四台机器呢？不要光想到存储空间，实际运...
Can lambda functions be templated?
... feature has already been integrated into the standard draft.
UPDATE 2014: C++14 has been released this year and now provides Polymorphic lambdas with the same syntax as in this example. Some major compilers already implement it.
At it stands (in C++11), sadly no. Polymorphic lambdas would be ...
How to concatenate two strings in C++?
...e time complexity of this string concatenation ?
– d34th4ck3r
Dec 17 '16 at 13:46
@d34th4ck3r: It is linear.
...