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Write a program to find 100 largest numbers out of an array of 1 billion numbers
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Since you have 1G items, sample 1000 elements randomly, and pick the largest 100. That should avoid the degenerate cases (sorted, reverse sorted, mostly sorted), reducing the number of inserts considerably.
– ChuckCottri...
Calculate last day of month in JavaScript
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this is the best solution IMO. I tried the accepted answer but it has some bug when fetching the last of the current month. It returns today's date. Not sure why that happens though.
– Gogol
Mar 13 ...
What does the “~” (tilde/squiggle/twiddle) CSS selector mean?
...gt;5th</li>
</ul>
.a ~ .b matches the 4th and 5th list item because they:
Are .b elements
Are siblings of .a
Appear after .a in HTML source order.
Likewise, .check:checked ~ .content matches all .content elements that are siblings of .check:checked and appear after it.
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What's a correct and good way to implement __hash__()?
...hods reduce the retrieval time by moving entries in the hash table when an item is inserted to spread things out. This increases the insertion time but assumes you read more than you insert. There are also methods that try and branch different colliding entries out so that entries to cluster in one ...
Best practices for using Markers in SLF4J/Logback
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f4165558%2fbest-practices-for-using-markers-in-slf4j-logback%23new-answer', 'question_page');
}
);
Post as a guest
...
Pattern to avoid nested try catch blocks?
...eturn DoCalc(++c);
}
}
NOTE: I am by no means saying that this is the best way to get the job done, just a different way
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Clang vs GCC - which produces faster binaries? [closed]
...an equally faster executable at -O2 and -O3 when that
pointer-type is the best one - std::shared_ptr<X> - for the job.
An obvious question that I am not competent to comment upon is why
Clang should be able to find a 25% -O2 speed-up in my application when
a heavily used smart-pointer-type i...
List directory in Go
...ctory (folders are included but not specially marked - you can check if an item is a folder by using the IsDir() method):
package main
import (
"fmt"
"io/ioutil"
"log"
)
func main() {
files, err := ioutil.ReadDir("./")
if err != nil {
log.Fatal(err)
}
for _, ...
Detect the Internet connection is offline?
...rk of handling state.. wireless connections may come and go, etc. So your best bet may be to just fail gracefully, preserve the data, and alert the user.. allowing them to eventually fix the connection problem if there is one, and to continue using your app with a fair amount of forgiveness.
Siden...
Rails: What's a good way to validate links (URLs)?
I was wondering how I would best validate URLs in Rails. I was thinking of using a regular expression, but am not sure if this is the best practice.
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