52 lines
894 B
Go
52 lines
894 B
Go
package main
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import (
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"AdventOfCode2021/shared"
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"bufio"
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"fmt"
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"math"
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"os"
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"strconv"
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"strings"
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)
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func main() {
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content := returnContent("../input")
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//content := returnContent("../testInput")
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list := shared.MergeSort((*content), 0, len(*content)-1)
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position := list[len(list)/2]
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var cost float64
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for i := 0; i < len(list); i++ {
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cost += math.Abs(float64(position) - float64(list[i]))
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}
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fmt.Println(cost)
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}
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func returnContent(path string) *[]int {
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//read file and return it as an array of integers
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file, err := os.Open(path)
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var content []int
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if err != nil {
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fmt.Println("Unlucky, the file didn't open")
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return &content
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}
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defer file.Close()
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scanner := bufio.NewScanner(file)
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for scanner.Scan() {
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text := strings.Split(scanner.Text(), ",")
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for _, v := range text {
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num, _ := strconv.Atoi(v)
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content = append(content, num)
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}
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}
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return &content
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}
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