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Python: Continuing to next iteration in outer loop
...
for ii in range(200):
for jj in range(200, 400):
...block0...
if something:
break
else:
...block1...
Break will break the inner loop, and block1 won't be executed (it will run only if the i...
Does Go have “if x in” construct similar to Python?
... this:
func stringInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
If you want to be able to check for membership without iterating over the whole list, you need to use a map instead of an array or ...
Are tuples more efficient than lists in Python?
... advantage:
>>> import sys
>>> sys.getsizeof(tuple(iter(range(10))))
128
>>> sys.getsizeof(list(iter(range(10))))
200
Here is the comment from Objects/listobject.c that explains what lists are doing:
/* This over-allocates proportional to the list size, making room
* ...
How to convert a number to string and vice versa in C++
...cted, for example because there is no numeric data or the number is out-of-range for the type, an exception is thrown (std::invalid_argument or std::out_of_range).
If conversion succeeded and idx is not 0, idx will contain the index of the first character that was not used for decoding. This could ...
What is in your Mathematica tool bag? [closed]
...the z-axis
In[2] := rots = RotationTransform[#, {0, 0, 1}] & /@ (Pi/2 Range[0, 3]);
Using SelectEquivalents we can group the points that produce the same set of images under these operations, i.e. they're equivalent, using the following
In[3] := SelectEquivalents[ pts, Union[Through[rots[#] ...
What is the largest TCP/IP network port number allowable for IPv4?
...Names and Numbers (ICANN) to a certain use. Each registered port is in the range 1024–49151.
Since 21 March 2001 the registry agency is ICANN; before that time it was IANA.
Ports with numbers lower than those of the registered ports are called well known ports; port with numbers greater than tho...
What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?
Some Git commands take commit ranges and one valid syntax is to separate two commit names with two dots .. , and another syntax uses three dots ... .
...
What's the most efficient way to test two integer ranges for overlap?
Given two inclusive integer ranges [x1:x2] and [y1:y2], where x1 ≤ x2 and y1 ≤ y2, what is the most efficient way to test whether there is any overlap of the two ranges?
...
Random date in C#
...eTime RandomDay()
{
DateTime start = new DateTime(1995, 1, 1);
int range = (DateTime.Today - start).Days;
return start.AddDays(gen.Next(range));
}
For better performance if this will be called repeatedly, create the start and gen (and maybe even range) variables outside of t...
Remove all values within one list from another list? [duplicate]
...
>>> a = range(1, 10)
>>> [x for x in a if x not in [2, 3, 7]]
[1, 4, 5, 6, 8, 9]
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