day 10

year25/day10/v3.go

@@ -46,14 +46,11 @@ func Part2V3(ctx aoc.Context) (out int, err error) {
 					continue
 				}
 
-				sub, err := solve(next)
-				if err != nil {
-					continue
-				}
-
-				cost := candidate.ButtonsPresses + (2 * sub)
-				if cost < best {
-					best = cost
+				if cost, err := solve(next); err == nil {
+					cost = cost*2 + candidate.ButtonsPresses
+					if cost < best {
+						best = cost
+					}
 				}
 			}
 
@@ -162,12 +159,9 @@ func generateButtonsCombinations(s [][]int, joltageLen int) iter.Seq[ButtonSet]
 			return
 		}
 
-		joltages := make([]int, joltageLen)
 		for pattern := range generateCombinations(buttons) {
-			for i := range joltages {
-				joltages[i] = 0
-			}
-			
+			joltages := make([]int, joltageLen)
+
 			p2 := make([]int, len(pattern))
 			for i := range p2 {
 				buttonIndex := pattern[i]