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Bomb dropping algorithm
... columns.
With the same approach clean columns 3,4,5, then columns 6,7,8, etc.
Unfortunately this does not help finding solution for the original problem.
"Larger" problem (without "nonicreasing" constraint) may be proven to be NP-hard. Here is sketch of a proof.
Suppose we have a planar graph...
What are the barriers to understanding pointers and what can be done to overcome them? [closed]
...it is) can sum up every nuance of memory management, references, pointers, etc. Since 465 people have voted this up, I'd say it serves as a good enough starting page on the information. Is there more to learn? Sure, when is it not?
– Lasse V. Karlsen
Jul 26 '13...
Dynamic type languages versus static type languages
... method interception, dynamic loading,
mobile code, runtime reflection, etc.
In the mother of all papers on
scripting [16], John Ousterhout argues
that statically typed systems
programming languages make code less
reusable, more verbose, not more safe,
and less expressive than dynamic...
jQuery Mobile: document ready vs. page events
...e content for that page is “enhanced” (styled)
A transition (slide/pop/etc) from the existing page to the new page occurs
This is a average page transition benchmark:
Page load and processing: 3 ms
Page enhance: 45 ms
Transition: 604 ms
Total time: 670 ms
*These values are in millisecond...
Do you (really) write exception safe code? [closed]
...If you are catching everything in your top control scope (thread, process, etc.), then you can be sure that you will continue to run in the face of exceptions (most of the time). The same techniques will also help you continue to run correctly in the face of exceptions without try/catch blocks ever...
dynamically add and remove view to viewpager
...iewPage can display. This must
// never be 0.
@Override
public int getCount ()
{
return views.size();
}
//-----------------------------------------------------------------------------
// Used by ViewPager.
@Override
public boolean isViewFromObject (View view, Object object)
...
When and why are database joins expensive?
...ires retrieval of only the keys. In practice, not even the key values are fetched: the key hash values are used for join comparisons, mitigating the cost of multi-column joins and radically reducing the cost of joins involving string comparisons. Not only will vastly more fit in cache, there's a lot...
Simple way to encode a string according to a password?
...rs from the lower ascii range! See precedence of % operator, unicode input etc. See qneill's answer for working code
– le_m
Nov 14 '14 at 23:23
...
What is an existential type?
...definition, list all possible uses, their relation to abstract data types, etc.) because I'm simply not knowledgeable enough for that. I'll demonstrate only (using Java) what this HaskellWiki article states to be the principal effect of existential types:
Existential types can be used for severa...
What is the optimal algorithm for the game 2048?
...ontaining no hard-coded intelligence (i.e no heuristics, scoring functions etc). The AI should "know" only the game rules, and "figure out" the game play. This is in contrast to most AIs (like the ones in this thread) where the game play is essentially brute force steered by a scoring function repre...