X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=15b.c;h=029d305d71f97ead949a28a61e3e45495f0c3a88;hb=09f77b0ecadc0625753adfeb990142cf0c0f6735;hp=26881a36f382ce7caa96ed2a5045b07a8c3d48ee;hpb=90ea69871badd76ada4faffbe02fe1a615f025ee;p=advent21.git

diff --git a/15b.c b/15b.c
index 26881a3..029d305 100644
--- a/15b.c
+++ b/15b.c
@@ -15,11 +15,9 @@ int maxy = 0;
 
 int get_grid(int x, int y)
 {
-	if (x == 0 && y == 0)
-		return 0;
 	int r = grid[y%maxy][x%maxx] + y/maxy + x/maxx;
-	while (r > 9)
-		r -= 9;
+	if (r > 9)
+		return r % 9;
 	return r;
 }
 
@@ -73,6 +71,7 @@ int main()
 				int alt = dist[u.y][u.x] + get_grid(v->key.x, v->key.y);
 				if (alt < dist[v->key.y][v->key.x]) {
 					dist[v->key.y][v->key.x] = alt;
+					//Reinsert with in correct position
 					HASH_DELETE(hh, q, v);
 					HASH_ADD_INORDER(hh, q, key, sizeof(struct point), v, qcmp);
 				}