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Counting inversions in an array
...nversion.
2a. accumulate the number of inversions to counter variable num_inversions.
2b. remove A[1] from array A and also from its corresponding position in array B
rerun from step 2 until there are no more elements in A.
Here’s an example run of this algorithm. Original array A = (6, 9, 1,...
Bold & Non-Bold Text In A Single UILabel?
...d: 2012/10/14 21:59"
We only need to create the attributed string:
if ([_label respondsToSelector:@selector(setAttributedText:)])
{
// iOS6 and above : Use NSAttributedStrings
// Create the attributes
const CGFloat fontSize = 13;
NSDictionary *attrs = @{
NSFontAttributeNa...
Check OS version in Swift?
...OS8 = floor(NSFoundationVersionNumber) > floor(NSFoundationVersionNumber_iOS_7_1)
let iOS7 = floor(NSFoundationVersionNumber) <= floor(NSFoundationVersionNumber_iOS_7_1)
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multiprocessing.Pool: When to use apply, apply_async or map?
I have not seen clear examples with use-cases for Pool.apply , Pool.apply_async and Pool.map . I am mainly using Pool.map ; what are the advantages of others?
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UCenter实现各系统通信的原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...原理
1、用户登录bbs，通过logging.php文件中，使用函数uc_user_login验证，如果验证成功，将调用函数uc_user_synlogin（位于uc_client下的client.php文件中）， 在这个函数中调用 uc_api_post('user', 'synlogin', array('uid'=>$uid));之后向UC_API.'/index.php'...
Fastest sort of fixed length 6 int array
...ction pipeline to stall.
Here's an insertion sort implementation:
static __inline__ int sort6(int *d){
int i, j;
for (i = 1; i < 6; i++) {
int tmp = d[i];
for (j = i; j >= 1 && tmp < d[j-1]; j--)
d[j] = d[j-1]...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
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Using GHC 7.0.3, gcc 4.4.6, Linux 2.6.29 on an x86_64 Core2 Duo (2.5GHz) machine, compiling using ghc -O2 -fllvm -fforce-recomp for Haskell and gcc -O3 -lm for C.
Your C routine runs in 8.4 seconds (faster than your run probably because of -O3)
The Haskell solution runs in...
How can I get the concatenation of two lists in Python without modifying either one? [duplicate]
...e + operator, which returns the concatenation of the lists:
concat = first_list + second_list
One disadvantage of this method is that twice the memory is now being used . For very large lists, depending on how you're going to use it once it's created, itertools.chain might be your best bet:
>&...
Do I set properties to nil in dealloc when using ARC?
...
@zeiteisen: No. unsafe_unretained is exactly equivalent to an assign property and is the normal behavior for delegate relationships under MRR, and these need to be nilled out.
– Lily Ballard
Mar 7 '12 at 20:2...
Cooler ASCII Spinners? [closed]
... even in random order http://www.fileformat.info/info/unicode/block/braille_patterns/images.htm
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