Tar's Site and stuff
Project Euler
>_ hi!

hello

this page will be focused on some programming challenges on Project Euler

[click to open Project Euler's site]
Problem 1: If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6, and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000.
>_ about problem 1

so

this question is a basic example to show off loops and the modulus operator

below is an example of a solution in JS

let total=0;

for (let i; i<1000; i++) {
	if (i%3 || i%5) {
		total += i;
	}
}
					
console.log(total);
>_ golf

in python, ive done some work trying to get the code as small as possible

my main goals was to have the entirety of the code, including output, be a single line

print(sum([i for i in range(1000) if i%3==0 or i%5==0]))
>_ how does that code work??

the single line of code above starts with print, we just print whatever value is inside

then we are taking the sum of something

the something we are taking the sum of is a list created using List Comprehension

[more on list comprehension can be seen here]

this lets us loop and run functions inline to create a list

our list is everything from 0 to 999 that passes the if statement

the if statement simply returns true when i is a multiple of 3 or 5