AoC 2020: day4

Signed-off-by: Ettore Dreucci <ettore.dreucci@gmail.com>

2018/day_03/main.go

@@ -1,71 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"log"
-	"os"
-	"strconv"
-	"strings"
-)
-
-type claim struct {
-	x           int
-	y           int
-	len         int
-	height      int
-	overlapping bool
-}
-
-func main() {
-	var fabric [1000][1000]int
-	claims := make(map[int]*claim)
-	inchesCount := 0
-	file, err := os.Open("./input")
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer file.Close()
-
-	scan := bufio.NewScanner(file)
-
-	for scan.Scan() {
-		line := scan.Text()
-		line = strings.Join(strings.Fields(line), "")
-
-		info := strings.Split(line, "#")[1]
-		id, _ := strconv.Atoi(strings.Split(info, "@")[0])
-		measures := strings.Split(info, "@")[1]
-		xy := strings.Split(strings.Split(measures, ":")[0], ",")
-		dim := strings.Split(strings.Split(measures, ":")[1], "x")
-		x, _ := strconv.Atoi(xy[0])
-		y, _ := strconv.Atoi(xy[1])
-		len, _ := strconv.Atoi(dim[0])
-		height, _ := strconv.Atoi(dim[1])
-
-		newClaim := claim{x, y, len, height, false}
-
-		for i := x; i < x+len; i++ {
-			for j := y; j < y+height; j++ {
-				if fabric[i][j] == 0 {
-					fabric[i][j] = id
-				} else if fabric[i][j] != -1 {
-					claims[fabric[i][j]].overlapping = true
-					fabric[i][j] = -1
-					inchesCount++
-				}
-				if fabric[i][j] == -1 {
-					newClaim.overlapping = true
-				}
-			}
-		}
-		claims[id] = &newClaim
-	}
-	fmt.Printf("Part One: square inches of fabric within two or more claims %v\n", inchesCount)
-
-	for id, c := range claims {
-		if !c.overlapping {
-			fmt.Printf("Part Two: the id of the claim that doesn't overlap is %v\n", id)
-		}
-	}
-}