Use 'helpers' module for previous days

2019/day01/main.go

@@ -1,23 +1,21 @@
 package main
 
 import (
-	"bufio"
 	"fmt"
-	"log"
 	"math"
-	"os"
+
-	"strconv"
+	helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
 )
 
 func main() {
-	inp := StdinToStringSlice()
+	inp := helpers.StdinToStringSlice()
 	fmt.Println("Fuel Required:", part1(inp))
 }
 
 func part1(inp []string) int {
 	var total int
 	for _, v := range inp {
-		total = total + part2(fuelRequired(float64(Atoi(v))))
+		total = total + part2(fuelRequired(float64(helpers.Atoi(v))))
 	}
 	return total
 }
@@ -39,21 +37,3 @@ func fuelRequired(mass float64) int {
 	}
 	return int(res) - 2
 }
-
-func StdinToStringSlice() []string {
-	var input []string
-	scanner := bufio.NewScanner(os.Stdin)
-	for scanner.Scan() {
-		input = append(input, scanner.Text())
-	}
-	return input
-}
-
-func Atoi(i string) int {
-	var ret int
-	var err error
-	if ret, err = strconv.Atoi(i); err != nil {
-		log.Fatal("Invalid Atoi")
-	}
-	return ret
-}

2019/day02/main.go

@@ -1,20 +1,19 @@
 package main
 
 import (
-	"bufio"
 	"fmt"
-	intcode "git.bullercodeworks.com/brian/adventofcode/2019/intcode-processor"
-	"log"
 	"os"
-	"strconv"
 	"strings"
+
+	intcode "git.bullercodeworks.com/brian/adventofcode/2019/intcode-processor"
+	helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
 )
 
 func main() {
-	inp := StdinToString()
+	inp := helpers.StdinToString()
 	var prog []int
 	for _, v := range strings.Split(inp, ",") {
-		prog = append(prog, Atoi(v))
+		prog = append(prog, helpers.Atoi(v))
 	}
 	part1(prog)
 	part2(prog)
@@ -129,21 +128,3 @@ func add(i, j int, prog []int) int {
 func mult(i, j int, prog []int) int {
 	return prog[i] * prog[j]
 }
-
-func StdinToString() string {
-	var input string
-	scanner := bufio.NewScanner(os.Stdin)
-	for scanner.Scan() {
-		input += scanner.Text()
-	}
-	return input
-}
-
-func Atoi(i string) int {
-	var ret int
-	var err error
-	if ret, err = strconv.Atoi(i); err != nil {
-		log.Fatal("Invalid Atoi")
-	}
-	return ret
-}

2019/day03/main.go

@@ -1,19 +1,16 @@
 package main
 
 import (
-	"bufio"
 	"fmt"
-	"log"
+	helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
 	"math"
-	"os"
-	"strconv"
 	"strings"
 )
 
 const MaxInt = int(^uint(0) >> 1)
 
 func main() {
-	inp := StdinToStringSlice()
+	inp := helpers.StdinToStringSlice()
 	part1(inp)
 }
 
@@ -69,7 +66,7 @@ func NewWire() *Wire {
 
 func (w *Wire) Go(cmd string) {
 	dir := cmd[0]
-	length := Atoi(cmd[1:])
+	length := helpers.Atoi(cmd[1:])
 	for length > 0 {
 		w.Move(dir)
 		w.path = append(w.path, w.curr)
@@ -105,21 +102,3 @@ func (c Coord) string() string {
 func manhattanDistance(x1, y1, x2, y2 int) int {
 	return int(math.Abs(float64(x1)-float64(x2)) + math.Abs(float64(y1)-float64(y2)))
 }
-
-func StdinToStringSlice() []string {
-	var input []string
-	scanner := bufio.NewScanner(os.Stdin)
-	for scanner.Scan() {
-		input = append(input, scanner.Text())
-	}
-	return input
-}
-
-func Atoi(i string) int {
-	var ret int
-	var err error
-	if ret, err = strconv.Atoi(i); err != nil {
-		log.Fatal("Invalid Atoi")
-	}
-	return ret
-}

dayTemplate/main.go

@@ -1,9 +1,11 @@
 package main
 
-import "fmt"
+import (
+	helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
+)
 
 func main() {
-	inp := StdinToStringSlice()
+	inp := helpers.StdinToStringSlice()
 	part1(inp)
 	part2(inp)
 }
@@ -13,21 +15,3 @@ func part1(inp []string) {
 
 func part2(inp []string) {
 }
-
-func StdinToStringSlice() []string {
-	var input []string
-	scanner := bufio.NewScanner(os.Stdin)
-	for scanner.Scan() {
-		input = append(input, scanner.Text())
-	}
-	return input
-}
-
-func Atoi(i string) int {
-	var ret int
-	var err error
-	if ret, err = strconv.Atoi(i); err != nil {
-		log.Fatal("Invalid Atoi")
-	}
-	return ret
-}