78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
package main
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import (
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"bufio"
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"fmt"
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"math"
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"os"
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"regexp"
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"strconv"
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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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gameMap := [1000][1000]int{}
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fmt.Println(run(content, &gameMap))
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}
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func run(content *[][]int, gameMap *[1000][1000]int) int {
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for i := 0; i < len((*content)); i++ {
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fillMap(gameMap, (*content)[i][0], (*content)[i][1], (*content)[i][2], (*content)[i][3])
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}
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count := 0
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for i := 0; i < len(gameMap); i++ {
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for j := 0; j < len(gameMap[i]); j++ {
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if gameMap[i][j] > 1 {
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count++
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}
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}
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}
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return count
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}
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func fillMap(gameMap *[1000][1000]int, x1 int, y1 int, x2 int, y2 int) {
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if x1 == x2 {
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for i := int(math.Min(float64(y1), float64(y2))); i <= int(math.Max(float64(y1), float64(y2))); i++ {
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(*gameMap)[i][x1]++
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}
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} else if y1 == y2 {
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//fill horizontal line
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for i := int(math.Min(float64(x1), float64(x2))); i <= int(math.Max(float64(x1), float64(x2))); i++ {
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(*gameMap)[y1][i]++
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}
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}
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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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regex := regexp.MustCompile("([0-9]+)")
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for scanner.Scan() {
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stringValues := regex.FindAllString(scanner.Text(), 4)
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intValues := []int{}
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for _, v := range stringValues {
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num, _ := strconv.Atoi(v)
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intValues = append(intValues, num)
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}
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content = append(content, intValues)
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}
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return &content
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}
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