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Generate all permutations of a list without adjacent equal elements
...i - 1] == lst[i] for i in range(1, len(lst)))
def test(lst):
perms = set(permutations(lst))
opt = min(map(defects, perms))
slow = {perm for perm in perms if defects(perm) == opt}
fast = set(enum(lst))
print(lst, fast, slow)
assert slow == fast
for r in range(10000):
t...
What is a raw type and why shouldn't we use it?
....class, not List<String>.class
instanceof operand, e.g. o instanceof Set, not o instanceof Set<String>
See also
Why is Collection<String>.class Illegal?
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Trying to git pull with error: cannot open .git/FETCH_HEAD: Permission denied
...issions on the .git/ directory. You should have write permissions. You can set them with the following command.
Go to your project folder:
chown -R youruser:yourgroup .git/
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Generate a random point within a circle (uniformly)
...orm value between 0 and 1
CDF-1(random()) = √random()
Which is what we set out to derive :-)
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Create table using Javascript
...tbl = document.createElement('table');
tbl.style.width = '100%';
tbl.setAttribute('border', '1');
var tbdy = document.createElement('tbody');
for (var i = 0; i < 3; i++) {
var tr = document.createElement('tr');
for (var j = 0; j < 2; j++) {
if (i == 2 && j ...
Regular expression to match non-ASCII characters?
...+
It matches any character which is not contained in the ASCII character set (0-127, i.e. 0x0 to 0x7F).
You can do the same thing with Unicode:
[^\u0000-\u007F]+
For unicode you can look at this 2 resources:
Code charts list of Unicode ranges
This tool to create a regex filtered by Unicod...
Concat all strings inside a List using LINQ
...j));
class description:
public class Foo
{
public string Boo { get; set; }
}
Usage:
class Program
{
static void Main(string[] args)
{
string delimiter = ",";
List<Foo> items = new List<Foo>() { new Foo { Boo = "ABC" }, new Foo { Boo = "DEF" },
...
Visual studio compiles fine but still shows red lines
...worked for me.
This folder has a hidden attribute. You may need to change settings in folder options to show hidden files.
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jQuery AJAX cross domain
...
JSONP is a good option, but there is an easier way. You can simply set the Access-Control-Allow-Origin header on your server. Setting it to * will accept cross-domain AJAX requests from any domain. (https://developer.mozilla.org/en/http_access_control)
The method to do this will vary from l...
How do I restore a dump file from mysqldump?
...enefit of allowing session-based variables (e.g. FOREIGN_KEY_CHECKS) to be set without having to edit the dump file
– Chris Cooper
Jan 27 '12 at 17:23
...