Day 4: Scratchcards

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[-] sjmulder@lemmy.sdf.org 2 points 11 months ago

Language: C

Another day of parsing, another day of strsep() to the rescue. Today was one of those satisfying days where the puzzle text is complicated but the solution is simple once well understood.

GitHub link

:::spoiler Code (29 lines)

int main()
{
	char line[128], *rest, *tok;
	int nextra[200]={0}, nums[10], nnums;
	int p1=0,p2=0, id,val,nmatch, i;

	for (id=0; (rest = fgets(line, sizeof(line), stdin)); id++) {
		nnums = nmatch = 0;

		while ((tok = strsep(&amp;rest, " ")) &amp;&amp; !strchr(tok, ':'))
			;
		while ((tok = strsep(&amp;rest, " ")) &amp;&amp; !strchr(tok, '|'))
			if ((val = atoi(tok)))
				nums[nnums++] = val;
		while ((tok = strsep(&amp;rest, " ")))
			if ((val = atoi(tok)))
				for (i=0; i

[-] mykl@lemmy.world 1 points 11 months ago

Looks like Lemmy's odd parsing broke your comment at the less-than sign.

[-] sjmulder@lemmy.sdf.org 1 points 11 months ago

That's unfortunate, although it looks good on my instance (SDF). Anything I could do?

[-] mykl@lemmy.world 1 points 11 months ago

Ohh that’s interesting, I’ve seen a few comments about mishandling of special chars in code blocks and assumed it was a server issue, maybe it’s fixed in newer releases or perhaps it’s client side.

this post was submitted on 04 Dec 2023

24 points (100.0% liked)

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