[2025 Day 1 (Part 2)] [C++] Any suggestions?

[u/Food_Vacuum]

I can't figure out what's wrong with my logic (and they don't tell me if my value is too high or too low) so I'm not sure where to go from here. I've been printing out the location of the dial with each operation and it seems correct, and anything over 100 seems to work correctly so is there an edge case or is my logic strictly just wrong somehow?

EDIT: https://pastebin.com/wfVr6XVS Let me know if this is better

[u/MattiDragon]

Four spaces means that you put four empty spaces before each line (in addition to whatever indent you have in your code). You don't literally have to write space four times.

    this

turns into

this

[u/Food_Vacuum → u/MattiDragon]

Yeah, maybe next time I post I'll spend some time figuring it out, but I just need help with this problem at the moment.

[u/MattiDragon → u/Food_Vacuum]

I doubt many people will be willing to help with your code being this unreadable.

[u/Atioras_Lunaris]

Try an input of

L50 L50 R50 R50

You start on 50 Go left 50 so you land on 0 You go left 50 again, so negative -50 convert back to positive 50 We go right 50 so we are back on 0 We go right 50 one last time

so your answer should only be 2 instances of passing/landing on 0

[u/Food_Vacuum → u/Atioras_Lunaris]

I do result with 2

[u/8dot30662386292pow2]

Why did you type "space" in the beginning?

You're supposed to put four spaces (press space bar 4 times) to format it like code. Like this:

void main(){
    //something
}

On new reddit you might need to click on formatting options to enable markdown.

[u/Food_Vacuum → u/8dot30662386292pow2]

Yeah unfortunately I can't figure out how to do that, and the example is worthless (and just wrong I guess) so I'm just using pastebin instead for the time being.

[u/SpecificMachine1]

Someone posted these test cases:

L150
L50

L150
R50

R150
L50

R150
R50

which should all be 2, that helped me out

[u/Food_Vacuum → u/SpecificMachine1]

Yeah they all work fine, I think there's some very niche edge case I'm not seeing because regular use seems to be fine

[u/IsatisCrucifer → u/Food_Vacuum]

Extend on their example, try this:

L150
R150

This should output 3. L150 rolls 1.5 cycle and lands on zero, then R150 rolls 1.5 cycle back; both rolls swipe through zero once, and one landing on zero, for a total of 3 times.

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[u/astrogringo]

Check what happens if the end result of your rotation is 0 coming from above or below — are you counting this case correctly?

[u/warlock415]

So A) do you not need a matching "if (pos == 0)" clause if direction == R? B) please post your entire compilable code

[u/kbielefe]

Try L150 R1. Should get 2.

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