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Checking for empty arrays: count vs empty
... @Jacco: Im not disputing that. But if youre testing it its empty, i dont see what relevance that has - its a question with a boolean result which is what the function will return. In regards to what is considered empty in dont see how those criteria would produce the wrong answer unless the v...
How to write a Unit Test?
...s.add(x,y));
}
Add other cases as desired.
Test that your binary sum does not throw a unexpected exception if there is an integer overflow.
Test that your method handles Null inputs gracefully (example below).
//if you are using 0 as default for null, make sure your class works in that case....
How is TeamViewer so fast?
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The most fundamental thing here probably is that you don't want to transmit static images but only changes to the images, which essentially is analogous to video stream.
My best guess is some very efficient (and heavily specialized and optimized) motion compensation algorithm,...
Authenticate Jenkins CI for Github private repository
...sted on Github.
But I have no idea how to accomplish that task.. Tried the documentation, generating ssh-key for jenkins user and all what I can see is: "unable to clone the repo". I've checked URLs - they are valid.
...
Android studio add external project to build.gradle
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Great answer. In AS 1.0.2, I also needed to do the following: Right click module -> Open Module Settings -> Dependencies -> + (bottom), select Module Dependency, select your library from the list, click ok :)
– T.Coutlakis
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How to merge specific files from Git branches
...ch1, it requires picking some changes and leaving others. For full control do an interactive merge using the --patch switch:
$ git checkout --patch branch2 file.py
The interactive mode section in the man page for git-add(1) explains the keys that are to be used:
y - stage this hunk
n - do not st...
No ConcurrentList in .Net 4.0?
...tion of IList<T> that is lockless and thread-safe. In particular, random insertions and removals are not going to work, unless you also forget about O(1) random access (i.e., unless you "cheat" and just use some sort of linked list and let the indexing suck).
What I thought might be worthwhil...
Override intranet compatibility mode IE8
...s into compatibility mode. I tried changing the meta header to IE8, but it doesn't acknowledge the meta header and just uses the browser setting. Does anyone know how to disable this?
...
Given an array of numbers, return array of products of all other numbers (no division)
..., a[2]*a[3], a[3], 1, }
Both of which can be done in O(n) by starting at the left and right edges respectively.
Then multiplying the two arrays element by element gives the required result
My code would look something like this:
int a[N] // This is the input
int prod...
Purge or recreate a Ruby on Rails database
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I know two ways to do this:
This will reset your database and reload your current schema with all:
rake db:reset db:migrate
This will destroy your db and then create it and then migrate your current schema:
rake db:drop db:create db:migrat...