remove internal/util

move cmpIncrease, cmpDecrease into parseLines

day-02/internal/one/solve.go

@@ -4,8 +4,6 @@ import (
 	"bufio"
 	"bytes"
 	"io"
-
-	"github.com/onyx-and-iris/aoc2024/day-02/internal/util"
 )
 
 type comparator func([]int, int) bool
@@ -21,13 +19,23 @@ func Solve(buf []byte) (int, error) {
 }
 
 func parseLines(r io.Reader) (int, error) {
+	var (
+		cmpIncrease = func(nums []int, i int) bool {
+			return nums[i-1] >= nums[i]
+		}
+
+		cmpDecrease = func(nums []int, i int) bool {
+			return nums[i-1] <= nums[i]
+		}
+	)
+
 	var sum int
 
 	scanner := bufio.NewScanner(r)
 	for scanner.Scan() {
-		nums := util.IntsFromString(scanner.Text())
+		nums := intsFromString(scanner.Text())
 
-		if check(nums, util.CmpIncrease) || check(nums, util.CmpDecrease) {
+		if check(nums, cmpIncrease) || check(nums, cmpDecrease) {
 			sum++
 		}
 	}

day-02/internal/one/util.go

@@ -0,0 +1,22 @@
+package one
+
+import (
+	"strconv"
+	"strings"
+)
+
+func mustConv(s string) int {
+	n, err := strconv.Atoi(s)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func intsFromString(s string) []int {
+	nums := []int{}
+	for _, r := range strings.Fields(s) {
+		nums = append(nums, mustConv(r))
+	}
+	return nums
+}