Interesting coding challenge.

it doesn't work for None

gg

Sure! Thanks a lot!

It works without return because the sample test (scroll a bit to see it in the coding page) tries to call factorial(). Talking about what he imported from math, factorial, it is imported as a function after all. Hope you get it.

This was probably one of the simplest ways to do it without digging into regex. nice job.

XCTAssertEqual failed: 
("h(t) = -16.0t^2 + 17.880t + 51.0") is not equal to 
("h(t) = -16.0t^2 + 17.88t + 51.0") 
XCTAssertEqual failed: ("x(t) = 83.070t") is not equal to 
                       ("x(t) = 83.07t") 

Yeah, really. They're not the same.

EVERYTHING, including values in the equations appearing as coefficients, must be rounded to THREE decimal places.

But because there is no proper order in XCTAssertions, it could be your answer is right and the expected one is wrong, please elaborate.

This comment has been deleted.

XCTAssertEqual failed: ("h(t) = -16.0t^2 + 17.880t + 51.0") is not equal to ("h(t) = -16.0t^2 + 17.88t + 51.0") -
XCTAssertEqual failed: ("x(t) = 83.070t") is not equal to ("x(t) = 83.07t") -

R E A L L Y ???

And... Why it works without a return (nor even rest of the code)? :/

thats what i mean, my solution was way too long compared to this beauty

why. Its good

Did it like this, but with regex \s+. It took me 4 mins.

I'm kicking myself because of this code