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How do I use IValidatableObject?
...idatableObject
{
[Required]
public bool Enable { get; set; }
[Range(1, 5)]
public int Prop1 { get; set; }
[Range(1, 5)]
public int Prop2 { get; set; }
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
var results = n...
Print in one line dynamically
...ased on your code:
from sys import stdout
from time import sleep
for i in range(1,20):
stdout.write("\r%d" % i)
stdout.flush()
sleep(1)
stdout.write("\n") # move the cursor to the next line
Some things about this that may be surprising:
The \r goes at the beginning of the string so ...
Does JavaScript have the interface type (such as Java's 'interface')?
...ew TypeError('Value must be numeric');
}
//latitude is in range between 0 and 90
if(prop == 'lat' && !(0 < val && val < 90)) {
throw new RangeError('Position is out of range!');
}
//longitude is in range between 0 and 180
...
Why does direction of index matter in MongoDB?
...The order of the nodes in the tree is irrelevant.
If you are returning a range of nodes - The elements close to each other will be down the same branches of the tree. The closer the nodes are in the range the quicker they can be retrieved.
With a single field index - The order won't matter. If ...
When is each sorting algorithm used? [closed]
...worth a try:
Counting sort: When you are sorting integers with a limited range.
Radix sort: When log(N) is significantly larger than K, where K is the number of radix digits.
Bucket sort: When you can guarantee that your input is approximately uniformly distributed.
...
Fast check for NaN in NumPy
...a n: numpy.random.rand(n),
kernels=[min, sum, dot, any, einsum],
n_range=[2 ** k for k in range(20)],
logx=True,
logy=True,
xlabel="len(a)",
)
share
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improve this answer
...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
... X.shape, centres.shape, delta, maxiter, metric)
allx = np.arange(N)
prevdist = 0
for jiter in range( 1, maxiter+1 ):
D = cdist_sparse( X, centres, metric=metric, p=p ) # |X| x |centres|
xtoc = D.argmin(axis=1) # X -> nearest centre
distances = D[a...
How to get HTTP Response Code using Selenium WebDriver
...s":{"frameId":"3928.1","requestId":"3928.1","response":{"headers":{"Accept-Ranges":"bytes","Keep-Alive":"timeout=4, max=100","Cache-Control":"max-age=300","Server":"Apache/2.2.22 (Ubuntu)","Connection":"Keep-Alive","Content-Encoding":"gzip","Vary":"Accept-Encoding","Expires":"Tue, 11 Oct 2016 14:13:...
Defeating a Poker Bot
...n proportion to
pot/# players and hand strength
Try to calculate its hand ranges. A low stakes bot probably wont be bluffing frequently enough to be of any significant strategic concern, so constructing highly accurate hand ranges for it shouldn't be too tricky.
Attempt to find leaks in its
game ...
STL 算法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...class Dist> size_t count_if(InIt first, InIt last, Pred pr);
equal_range
<algorithm>
功能类似equal，返回一对iterator，第一个表示lower_bound，第二个表示upper_bound
函数原形
template<class FwdIt, class T> pair<FwdIt, FwdIt> equal_range(FwdIt first, FwdIt ...