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Time complexity of Sieve of Eratosthenes algorithm
...per bound of O(n log log n) + O(n) = O(n log log n) arithmetic operations. If you count bit operations, since you're dealing with numbers up to n, they have about log n bits, which is where the factor of log n comes in, giving O(n log n log log n) bit operations.
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How do you represent a JSON array of strings?
...l structure but the string the OP posted is perfectly valid JSON: codebeautify.org/jsonviewer/92ac7b
– ChrisR
May 7 '14 at 9:28
1
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Any reason why scala does not explicitly support dependent types?
...w that Scala is a lot closer to these other languages than is typically acknowledged.
Despite the terminology, dependent sum types (also known as Sigma types) are simply a pair of values where the type of the second value is dependent on the first value. This is directly representable in Scala,
sc...
Argparse: Way to include default values in '--help'?
... Note that in that case no attribute will be added to the namespace result if that argument was omitted, see the default documentation.
– Martijn Pieters♦
Jun 7 '13 at 10:18
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How to save/restore serializable object to/from file?
... and I know that the object has to be Serializable . But it would be nice if I can get an example. For example if I have the following:
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Cannot use ref or out parameter in lambda expressions
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Lambdas have the appearance of changing the lifetime of variables that they capture. For instance the following lambda expression causes the parameter p1 to live longer than the current method frame as its value can be accessed after the method frame is no longer on th...
Golang production web application configuration
...han HAProxy and capable of doing more).
HAProxy is very easy to configure if you read its documentation (HTML version). My whole haproxy.cfg file for one of my Go projects follows, in case you need a starting pont.
global
log 127.0.0.1 local0
maxconn 10000
user ...
Prepend a level to a pandas MultiIndex
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It took me a while to realize that if you have more than one key for FirstLevel as in ['Foo', 'Bar'] the first argument will also need to have the corresponding length, i.e., [df] * len(['Foo', 'Bar'])!
– mrclng
Dec 13 '1...
Java - No enclosing instance of type Foo is accessible
...ch (by definition) is associated with a particular instance of Hello (even if it never uses or refers to it), which means it's an error to say new Thing(); without having a particular Hello instance in scope.
If you declare it as a static class instead, then it's a "nested" class, which doesn't ne...
Java 8 Streams: multiple filters vs. complex condition
...aryStatistics{count=100, sum=10320, min=82, average=103.200000, max=127}
now the code:
enum Gender {
FEMALE,
MALE
}
static class User {
Gender gender;
int age;
public User(Gender gender, int age){
this.gender = gender;
this.age = age;
}
public Gender...