My idea is to write a exit function to terminate the whole system, so I wrote the function int exit_c(), and put it in the while loop, but it seems that the system keeps working. int main() { while (true) { exit_c(); } system("pause"); return 0; } int exit_c() { cout << "close" << endl;… Read More C++, when I put return 0 in a function and use the function main, the system still keep working

I’m having trouble with scrapping elements with the find_all() method. I am looking for the <li class=’list-row’>…..</li> tag but after scrapping it returns <li class=’list-row reach-list’> tags with different classes too. I tried with the select() method too. Here’s the python code: with open(‘index.html’, ‘r’) as f: contents = f.read() soup = BeautifulSoup(html,"html.parser") main_block =… Read More Python BeautifulSoup find_all() method return unnecessary element

That’s the function: function randomNum(n) { const numbers = [1,2,3,4,5,6,7,8,9,10] if(numbers.includes(n)) { console.log(‘ok’) } else { console.log(‘Choose a value between 1 and 10′) } } console.log(randomNum(5)) Sorry if it’s a simple problem, but i can’t figure it out, i’m kinda new to programing. The function is returning ‘undefined’ after ‘ok’ or ‘Choose a value between… Read More Javascript simple function returning undefined after result

Which of the following is faster? 1. def is_even(num: int): if num%2==0: return True else: return False def is_even(num: int): if num%2==0: return True return False I know you can technically do this: def is_even(num: int): return n%2==0 But for the sake of the question, ignore this solution >Solution : Compare the byte codes shown… Read More Is using else faster than returning value right away?

I happened to review recursion again and noticed that some people write recursion with and if else statement. The if being the base case and the else having the recursive call. However, I have been only using an if for the base case with no else, and just the recursive call under it. See below.… Read More Does it matter which way I write recursion?

So i am working on this function that takes a list as a parameter containing positive int, negative int, and the number 0 (zero). I have written the function using a while function with nested if statements to determine the value of each integer. Here is an example: def Signs1(numList): num = 0 while num… Read More how do I return a list containing print statements?

I have been some time coding, not to much as you will see (1-2 years), but I am facing this question and I am feeling ashamed. This is not the first time I am confused about it. I have looked in some books of other languages as Java, but I can’t solve it by myself.… Read More coding basics if / else and return (for example in javascript)