ctku

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    
    
    // override point for customization after application launch
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    
    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Storyboard" bundle:nil];
    self.window.rootViewController = [sb instantiateInitialViewController];
    
    [self.window makeKeyAndVisible];

ctku

import ctypes
import time
import numpy as np
import example_cython


def mult_sum(a):
    b = 0
    for i in range(10000):
        b += a * i