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Why is processing a sorted array slower than an unsorted array?
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When you are using the unsorted list all tuples are accessed in memory-order. They have been allocated consecutively in RAM. CPUs love accessing memory sequentially because they can speculatively request the next cache line so it will always be present when needed.
When you are sorting t...
Check if two lists are equal [duplicate]
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Use SequenceEqual to check for sequence equality because Equals method checks for reference equality.
var a = ints1.SequenceEqual(ints2);
Or if you don't care about elements order use Enumerable.All method:
var a = ints1.All(ints2.Contains);
The second version also requires another ...
Finding Key associated with max Value in a Java Map
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Basically you'd need to iterate over the map's entry set, remembering both the "currently known maximum" and the key associated with it. (Or just the entry containing both, of course.)
For example:
Map.Entry<Foo, Bar> maxEntry = null;
for (Map.Entry<Foo, Bar> entry : ma...
How to convert an int value to string in Go?
... Why did the language designers think that cryptic functions names like "Itoa" were preferable to something that might be a little more descriptive?
– Luke
Jul 17 '16 at 20:27
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How do I change the IntelliJ IDEA default JDK?
I use IntelliJ IDEA as my development environment, and Maven for dependency management. I frequently build my project structure (directories, poms, etc) outside of IDEA and then import the project into IDEA using Import project from external model . This works great, except that in my poms I spec...
JSON Stringify changes time of date because of UTC
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Recently I have run into the same issue. And it was resolved using the following code:
x = new Date();
let hoursDiff = x.getHours() - x.getTimezoneOffset() / 60;
let minutesDiff = (x.getHours() - x.getTimezoneOffset()) % 60;
x.setHours(hoursDiff);
x.setMi...
How to remove leading zeros from alphanumeric text?
... @Greg: This question is about Java, not JavaScript. Java SE has had the method String.replaceFirst() since version 1.4.
– Jonik
May 22 '12 at 10:37
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How to build sources jar with gradle
... the class. Gradle looks at the inputs for a task, determines where they came from, and automatically creates a dependency. e.g. javadocJar pulls files from javadoc, therefore Gradle will add the dependsOn javadoc automatically.
– Mikezx6r
Oct 25 '13 at 12:06
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Highlight bash/shell code in markdown
...ing engine and the markdown flavour. There is no standard for this. If you mean github flavoured markdown for example, shell should work fine. Aliases are sh, bash or zsh. You can find the list of available syntax lexers here
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YYYY-MM-DD format date in shell script
...date
# -1 -> explicit current date, bash >=4.3 defaults to current time if not provided
# -2 -> start time for shell
printf -v date '%(%Y-%m-%d)T\n' -1
# put current date as yyyy-mm-dd HH:MM:SS in $date
printf -v date '%(%Y-%m-%d %H:%M:%S)T\n' -1
# to print directly remove -v flag, as s...