main.go

@@ -10,14 +10,8 @@ func main() {
 	runAndBenchmark("01", "1", false, solutions.Day01Part01)
 	runAndBenchmark("01", "2", false, solutions.Day01Part02)
 
-	runAndBenchmark("02", "1", false, solutions.Day02Part01)
-	runAndBenchmark("02", "2", false, solutions.Day02Part02)
-
-	runAndBenchmark("03", "1", false, solutions.Day03Part01)
-	runAndBenchmark("03", "2", false, solutions.Day03Part02)
-
-	runAndBenchmark("04", "1", false, solutions.Day04Part01)
-	runAndBenchmark("04", "2", false, solutions.Day04Part02)
+	runAndBenchmark("02", "1", false, solutions.Day01Part01)
+	runAndBenchmark("02", "2", false, solutions.Day01Part02)
 }
 
 type execute func(bool) int
@@ -27,5 +21,5 @@ func runAndBenchmark(day, part string, isTest bool, fn execute) {
 	computation := fn(isTest)
 	endMs := time.Now().UnixMicro()
 	duration := endMs - startMs
-	fmt.Printf("Day %s part %s:\t%12d\t%5d micros.\n", day, part, computation, duration)
+	fmt.Printf("Day %s part %s:\t%10d\t%5d micros.\n", day, part, computation, duration)
 }

solutions/day03.go

@@ -1,44 +0,0 @@
-package solutions
-
-import "strings"
-
-func countTrees(input string, right, down int) int {
-	verticalPos := down
-	horizontalPos := right
-	lines := strings.Split(input, "\n")
-	width := len(lines[0])
-	treesCount := 0
-
-	for verticalPos < len(lines) {
-		line := lines[verticalPos]
-		charAt := string(line[horizontalPos])
-
-		if charAt == "#" {
-			treesCount += 1
-		}
-
-		horizontalPos += right
-		horizontalPos = horizontalPos % width
-		verticalPos += down
-	}
-
-	return treesCount
-}
-
-func Day03Part01(isTest bool) int {
-	input := ReadInput("03", isTest)
-
-	return countTrees(input, 3, 1)
-}
-
-func Day03Part02(isTest bool) int {
-	input := ReadInput("03", isTest)
-
-	amount1 := countTrees(input, 1, 1)
-	amount2 := countTrees(input, 3, 1)
-	amount3 := countTrees(input, 5, 1)
-	amount4 := countTrees(input, 7, 1)
-	amount5 := countTrees(input, 1, 2)
-
-	return amount1 * amount2 * amount3 * amount4 * amount5
-}

solutions/day04.go

@@ -1,41 +0,0 @@
-package solutions
-
-import (
-	"regexp"
-	"strings"
-)
-
-func Day04Part01(isTest bool) int {
-	input := ReadInput("04", isTest)
-	passports := strings.Split(input, "\n\n")
-
-	regex, _ := regexp.Compile("(\\w+:[\\w#]+)")
-
-	correctAmount := 0
-
-	for _, passport := range passports {
-		matches := regex.FindAllString(passport, -1)
-
-		values := make(map[string]string)
-
-		for _, match := range matches {
-			colonPosition := strings.Index(match, ":")
-			key := match[:colonPosition]
-			value := match[colonPosition+1:]
-			values[key] = value
-		}
-
-		_, cidMissing := values["cid"]
-		keysAmount := len(values)
-
-		if keysAmount == 8 || (keysAmount == 7 && !cidMissing) {
-			correctAmount += 1
-		}
-	}
-
-	return correctAmount
-}
-
-func Day04Part02(isTest bool) int {
-	return -1
-}