What no theory does to a mfer
someone should have started with tingo i mean bingo
What no theory does to a mfer
Is this the same person who coded the odd/even function?
I have a better odd/even function:
bool isEven( long long x ) {
if ( x < 0 ) x = -x;
if ( x == 1 )
return false;
if ( x == 2 )
return true;
return isEven( x - 2 );
}
This will work for both negative numbers and arbitrarily large integers. I’ve tested it up to 26 but I’m pretty sure it will work up to infinity.
Though serious question: Why are these forums coded in such a way that they ignore single newlines? How hard is it to replace a newline with a br tag?
Edit: added two spaces, should look much better.
Edit2: just looks a bit better lol
Edit3: better now?
Is this meant to be a joke or is it intended to be a serious solution?
Asking for someone who lacks a sense of humor.
Ok, fine, I’m asking for me. That person is me.
I want to see how you’d reply if I said it was serious. So let’s go with that. This is the best way to determine if a number is even in c/c++.
It’s Markdown syntax. You can actually format it nicely in a code block:
bool isEven( long long x ) {
if ( x < 0 ) x = -x;
if ( x == 1 )
return false;
if ( x == 2 )
return true;
return isEven( x - 2 );
}
You do that by adding ``` above and below it. To force single line breaks, you can terminate your sentences with two spaces, or a backslash.
Ah thank you, the editor in connect isn’t great and doesn’t have the markdown guide or buttons for the preformatted block, so I couldn’t find the character combo to use it (and never would have guessed that lol). Also it keeps giving an error when I edit, though the edit is going through.
For large numbers, you might get a stack overflow. Depends on whether the compiler recognizes that it’s a tail recursion and then handles it appropriately.
As for why Lemmy ignores single newlines, that’s because it uses Markdown for its comment syntax, which happens to handle newlines that way. If you want a single newline to display, you have to add two spaces at the end of the line.
Here, you really would have wanted to use a code block, though, which you can create with backticks
```
like
so.
```
Normally, this would display “like so.” in a monospace font and handle newlines as you expected:
like
so.
Just need to add some code that saves the base stack pointer, detects when the stack is about to run out, then saves the current number, resets the stack to the original pointer but now with the current number as x and continues on to fix the stack overflow issue. You don’t even have to restore the stack when it’s all unwinding!
The integer overflow issue would be more complicated to solve except it isn’t really an issue because chopping off the upper bits doesn’t affect the eveness of a value.
Oh and I thought of a quick way to verify the result of the algorithm. It should give the same result as this expression that you can use in your test suite:
!(x & 1)
Edit: um, new formatting problem… And that amp shows up in the edit box so it might even keep expanding.
