AoC 2020: day4

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

2018/day_01/main.go

@@ -1,62 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"log"
-	"os"
-	"strconv"
-)
-
-func main() {
-	//count to maintain the total sum of the frequence changes
-	count := 0
-	//current to maintain the partial frequence at a stage
-	current := 0
-	//freqChange to store the individual frequence changes
-	var freqChange []int
-	//freqList to store all the stage frequences
-	freqList := map[int]bool{0: true}
-
-	//We open the input file
-	file, err := os.Open("./input")
-	if err != nil {
-		//If there is an error we print it in the stderr and exit(1)
-		log.Fatal(err)
-	}
-	//We defer the closure of the file
-	defer file.Close()
-
-	//We create a scanner to the file
-	scan := bufio.NewScanner(file)
-
-	//We iterate throught the file line
-	for scan.Scan() {
-		//We convert each line into an int
-		num, err := strconv.Atoi(scan.Text())
-		if err != nil {
-			//If the conversion generate an error we print it to stderr
-			log.Printf("Error converting line to int: %v", err)
-		} else {
-			//Otherwise we add the current freq change to count
-			count += num
-			//And we append it to freqChange
-			freqChange = append(freqChange, num)
-		}
-	}
-
-	fmt.Printf("Part One: %v\n", count)
-
-	for {
-		for _, freqMod := range freqChange {
-			current += freqMod
-			_, found := freqList[current]
-			if found {
-				fmt.Printf("Part Two: %v\n", current)
-				os.Exit(0)
-			} else {
-				freqList[current] = true
-			}
-		}
-	}
-}