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How to find the kth smallest element in the union of two sorted arrays?
...as length respectively. We need to find the k-th smallest element from the union of those two arrays. Here we reasonably assume that (k > 0 && k <= size1 + size2), which implies that A1 and A2 can't be both empty.
First, let's approach this question with a slow O(k) algorithm. The met...
What are the most common naming conventions in C?
...function names, hardly ever do you see camel case in C;
structs, typedefs, unions, members (of unions and structs) and enum values typically are in lower case (in my experience) rather than the C++/Java/C#/etc convention of making the first letter a capital but I guess it's possible in C too.
C++ ...
What's wrong with nullable columns in composite primary keys?
...ing accepted.
[* NOTE: It is possible to create a custom type that is the union of integers and a "bottom" type that would semantically mean "empty" as opposed to "unknown". Unfortunately this introduces a bit of complexity in comparison operations and usually being truly type correct isn't worth t...
Iterate two Lists or Arrays with one ForEach statement in C#
...
You can use Union or Concat, the former removes duplicates, the later doesn't
foreach (var item in List1.Union(List1))
{
//TODO: Real code goes here
}
foreach (var item in List1.Concat(List1))
{
//TODO: Real code goes here
}
...
Database development mistakes made by application developers [closed]
...iews in the first place is ignorant, even dangerous.
13. Over-reliance on UNION ALL and particularly UNION constructs
A UNION in SQL terms merely concatenates congruent data sets, meaning they have the same type and number of columns. The difference between them is that UNION ALL is a simple conc...
What are the mechanics of short string optimization in libc++?
...of(__long) - 1)/sizeof(value_type) : 2};
struct __short
{
union
{
unsigned char __size_;
value_type __lx;
};
value_type __data_[__min_cap];
};
union __ulx{__long __lx; __short __lxx;};
enum {__n_words = sizeof(__ulx) / si...
The opposite of Intersect()
..., then this should do the trick:
var nonintersect = array1.Except(array2).Union( array2.Except(array1));
This will not be the most performant solution, but for small lists it should work just fine.
share
|
...
Add list to set?
...
With respect to sets, the | operator implements the set union operation. Both the |= operator and set.update() method apply that operation in-place and are effectively synonymous. So, set_a |= set_b could be considered syntactic sugar for both set_a.update(set_b) and set_a = set_a...
程序员必知 —— 编程语言创始人 - 创意 - 清泛网 - 专注C/C++及内核技术
...1977年获得了加拿大卡尔加里大学计算机科 学学士学位。1981年开发在Unix上运行的Emacs类编辑器Gosling Emacs（以C语言编写，使用Mocklisp作为扩展语言）。1983年获得了美国卡内基梅隆大学计算机科学博士学位，博士论文的题目是："The...
80后男子放弃20万年薪回乡卖包子 - 资讯 - 清泛网 - 专注C/C++及内核技术
...锁店，被称为“创业传奇”。
事业高峰期却辞职创业
1981年，卢启辉出生于长沙县江北镇，父母都是老实巴交的农民，家庭贫困。
2004年卢启辉大学毕业后南下深圳，在麦当劳南山分店当一名见习经理。工作之余，卢启辉一直...