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compare: Kharec:e5a1504f6b49975c2ff061b406868b3c0c5bc597
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4 Commits
9dd5f1354f ... e5a1504f6b

Author SHA1 Message Date
Kharec
e5a1504f6b feat: add solutions for P1/P2 2018D1 2025-11-30 12:46:09 +01:00
Kharec
9da1fa02c8 feat: 2018D1 dataset 2025-11-30 12:46:01 +01:00
Kharec
99857d8ca5 test: add unit tests for P1/P2 2025-11-30 12:45:53 +01:00
Kharec
e198caf1b9 feat: include 2018D1 2025-11-30 12:45:45 +01:00
4 changed files with 1064 additions and 0 deletions
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3
cmd/aoc/main.go
View File

@@ -15,6 +15,9 @@ import (
_ "advent-of-code/internal/2015/DayThree"
_ "advent-of-code/internal/2015/DayTwo"
// 2018
_ "advent-of-code/internal/2018/DayOne"
// 2020
_ "advent-of-code/internal/2020/DayEight"
_ "advent-of-code/internal/2020/DayFour"

45
internal/2018/DayOne/code.go Normal file
View File

@@ -0,0 +1,45 @@
package dayone
import (
"advent-of-code/internal/registry"
"os"
"strconv"
"strings"
)
func init() {
registry.Register("2018D1", ParseInput, PartOne, PartTwo)
}
func ParseInput(filepath string) []int {
content, _ := os.ReadFile(filepath)
var data []int
for line := range strings.SplitSeq(string(content), "\n") {
num, _ := strconv.Atoi(line)
data = append(data, num)
}
return data
}
func PartOne(data []int) int {
sum := 0
for _, num := range data {
sum += num
}
return sum
}
func PartTwo(data []int) int {
seen := make(map[int]bool)
sum := 0
seen[0] = true
for {
for _, num := range data {
sum += num
if seen[sum] {
return sum
}
seen[sum] = true
}
}
}

26
internal/2018/DayOne/code_test.go Normal file
View File

@@ -0,0 +1,26 @@
package dayone
import "testing"
var testInput = []int{
+1,
-2,
3,
1,
}
func TestPartOne(t *testing.T) {
expected := 3
got := PartOne(testInput)
if got != expected {
t.Errorf("PartOne() = %d, want %d", got, expected)
}
}
func TestPartTwo(t *testing.T) {
expected := 2
got := PartTwo(testInput)
if got != expected {
t.Errorf("PartTwo() = %d, want %d", got, expected)
}
}

990
internal/data/2018/DayOne/input.txt Normal file
View File

@@ -0,0 +1,990 @@
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