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Find kth smallest element in a binary search tree in Optimum way
...(log n) in the worst case on a balanced BST, or O(log n) on average for a random BST.
A BST requires O(n) storage, and it takes another O(n) to store the information about the number of elements. All BST operations take O(depth of node) time, and it takes O(depth of node) extra time to maintain the...
Comparing two byte arrays in .NET
...t it's not often you're comparing enough data for it to make a difference, and if you are, you really need to benchmark this for your own case, for a myriad of reasons. For example, note the creator of the unsafe answer notes a difference of 7x slow, as opposed to 50x slower (the unsafe method's spe...
How to remove all whitespace from a string?
...ical tab, form feed
x <- c(
" x y ", # spaces before, after and in between
" \u2190 \u2192 ", # contains unicode chars
paste0( # varied whitespace
whitespace,
"x",
whitespace,
"y",
whitespace,
collapse = ""
),
NA ...
动态追踪（Dynamic Tracing）技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
动态追踪（Dynamic Tracing）技术漫谈dynamic-tracing什么是动态追踪动态追踪的优点DTrace 与 SystemTapSystemTap 在生产上的应用火焰图方法论知识就是力量开源与调试符号Linux 内核的支持硬件追踪死亡进程的遗骸分析传统的调试技
什么...
Retrieve database or any other file from the Internal Storage using run-as
On a non-rooted android device, I can navigate to the data folder containing the database using the run-as command with my package name. Most files types I am content with just viewing, but with the database I would like to pull if from the android device.
...
Join/Where with LINQ and Lambda
I'm having trouble with a query written in LINQ and Lambda. So far, I'm getting a lot of errors here's my code:
9 Answers
...
Could not find an implementation of the query pattern
...ate a database connection using LINQ.
First I add a new LINQ to SQL class, and drag my table called "tblPersoon" into it.
9...
How to find all duplicate from a List? [duplicate]
...
In .NET framework 3.5 and above you can use Enumerable.GroupBy which returns an enumerable of enumerables of duplicate keys, and then filter out any of the enumerables that have a Count of <=1, then select their keys to get back down to a singl...
Pass Array Parameter in SqlCommand
...t a time.
var parameters = new string[items.Length];
var cmd = new SqlCommand();
for (int i = 0; i < items.Length; i++)
{
parameters[i] = string.Format("@Age{0}", i);
cmd.Parameters.AddWithValue(parameters[i], items[i]);
}
cmd.CommandText = string.Format("SELECT * from TableA WHERE Age ...
stopPropagation vs. stopImmediatePropagation
What's the difference between event.stopPropagation() and event.stopImmediatePropagation() ?
9 Answers
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