k06a

int64_t nn = 100000000;
vector<int> ip(nn,1);
size_t pos = 2;
ip[0] = 0;
ip[1] = 0;
while ((pos = find(ip.begin()+pos, ip.end(), 1) - ip.begin()) < nn) {
    for (size_t j = pos*pos; j < ip.size(); j+=pos)
        ip[j] = 0;
    pos += 1 + (pos>2);
}

k06a

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [self.navigationController setNavigationBarHidden:NO animated:YES];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    if (self.isMovingFromParentViewController)

k06a

#import <UIKit/UIKit.h>

@interface TintedButton : UIButton

@end

k06a

+ (UIColor *)colorBetweenColor:(UIColor *)color1
                      andColor:(UIColor *)color2
                    atProgress:(CGFloat)progress
{
    CGFloat r1,g1,b1,a1,r2,g2,b2,a2;
    [color1 getRed:&r1 green:&g1 blue:&b1 alpha:&a1];
    [color2 getRed:&r2 green:&g2 blue:&b2 alpha:&a2];
    return [UIColor colorWithRed:r1+(r2-r1)*progress
                           green:g1+(g2-g1)*progress
                            blue:b1+(b2-b1)*progress

k06a

#import <Cocoa/Cocoa.h>
#import <objc/runtime.h>

@implementation NSControl (Subclasses)

+ (void)load
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        method_exchangeImplementations(class_getInstanceMethod([self class], @selector(initWithCoder:)),

k06a

string add(const string & s1, const string & s2)
{
    int flag = 0;
    string ret(std::max(s1.size(),s2.size())+1, '0');
    for (int i = 0; i < ret.size(); i++) {
        int v = (i < s1.size() ? s1[s1.size()-1-i]-'0' : 0)
              + (i < s2.size() ? s2[s2.size()-1-i]-'0' : 0) + flag;
        flag = v/10;
        v -= flag*10;
        ret[ret.size()-1-i] = v+'0';

k06a

struct RefString
{
    RefString(const string & s, int i, int l) : s(s), i(i), l(l) {}

    const char & operator [] (int x) const {
        return s[i+x];
    }
    
    size_t length() const {
        return l;

k06a

@implementation UIImage (Grayscale)

UIImage *grayscaleImageFromCIImage(CIImage *image, CGFloat scale) {
    CIImage *blackAndWhite = [CIFilter filterWithName:@"CIColorControls" keysAndValues:kCIInputImageKey, image, @"inputBrightness", @0.0, @"inputContrast", @1.1, @"inputSaturation", @0.0, nil].outputImage;
    CIImage *output = [CIFilter filterWithName:@"CIExposureAdjust" keysAndValues:kCIInputImageKey, blackAndWhite, @"inputEV", @0.7, nil].outputImage;
    CGImageRef ref = [[CIContext contextWithOptions:nil] createCGImage:output fromRect:output.extent];
    UIImage *result = [UIImage imageWithCGImage:ref scale:scale orientation:UIImageOrientationUp];
    CGImageRelease(ref);
    return result;
}

k06a

# Fetch
git clone https://github.com/username/reponame reponame
for b in `git branch -r | grep -v -- '->'`; do git branch --track ${b##origin/} $b; done

# Analyze
curl https://bootstrap.pypa.io/get-pip.py > get-pip.py && sudo python get-pip.py && rm get-pip.py
sudo pip install git-fat
git fat -a find 1000000

git ls-tree -r -t -l --full-name HEAD | sort -n -k 4

k06a

#import <Foundation/Foundation.h>

namespace cv {
    class Mat;
}

@interface NSValue (CVMat)

+ (instancetype)valueWithCVMat:(cv::Mat)mat;
@property (readonly) cv::Mat CVMatValue;