[Solved] Extended for loop in C++

When for (int ai : a) std::cout << ai; is used for array – int a[20]; it can be substituted with for (int i = 0; i < sizeof(a) / sizeof(a[0]); i++) std::cout << a[i]; or with for (int *ai = a; ai < a + (sizeof(a)/sizeof(*a)); ai++) std::cout << *ai; But to work with … Read more

[Solved] What is the best way to organize a lot of data which contains multiple conditions?

You could organize your data as follows: class Program { static void Main(string[] args) { List<Criteria> list = new List<Criteria>() { new Criteria(Color.green, Country.england, Town.london, GoodBad.good, DayOfTheWeek.sunday, Daytime.evening), new Criteria(Color.red, Country.thenetherlands, Town.amsterdam, GoodBad.bad, DayOfTheWeek.monday, Daytime.night), new Criteria(Color.blue, Country.america, Town.newyork, GoodBad.bad, DayOfTheWeek.tuesday, Daytime.morning), }; Console.WriteLine(“- Native sorting:”); list.Sort(); foreach(var criteria in list) { Console.WriteLine(criteria); } Console.WriteLine(); … Read more

[Solved] how to make If statement and for loop work for an empty variable

shouldn’t it be something like this? import urllib import argparse def download_web_image(url): IMAGE = url.rsplit(“https://stackoverflow.com/”,1)[1] urllib.urlretrieve(url, IMAGE) parser = argparse.ArgumentParser() parser.add_argument(“num1”) parser.add_argument(“num2”) parser.add_argument(“num3”) args = parser.parse_args() num3 = args.num3 if not num3: for num3 in range(01,50): download_web_image(“https://www.example.com/{num1}/{num2}/{num3}.jpg”.format(num1=args.num1, num2=args.num2, num3=num3)) else: download_web_image(“https://www.example.com/{num1}/{num2}/{num3}.jpg”.format(num1=args.num1, num2=args.num2, num3=num3)) your complete code is (sorry) a mess.. first you have to define … Read more

[Solved] How does Python iterate over a string? [duplicate]

The easiest way for me to think about this is to remember that the word ‘letter’ could easily be replaced with anything you want to call it, it’s just a placeholder. To illustrate, let’s replace ‘letter’ in your loop with the name ‘Dave’. for Dave in ‘Python’: print ‘Current letter : ‘, Dave There is … Read more