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@@ -75,6 +75,19 @@ func play(decks [2][]int) []int {
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return decks[0]
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}
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+func part1(deck []int) int {
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+ result := 0
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+ multiplyBy := 1
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+ index := len(deck) - 1
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+
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+ for ; index >= 0; index-- {
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+ result += deck[index] * multiplyBy
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+ multiplyBy++
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+ }
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+
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+ return result
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+}
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+
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func main() {
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if len(os.Args) < 2 {
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log.Fatal("You need to specify a file!")
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@@ -92,5 +105,6 @@ func main() {
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log.Fatalf("Failed to close file: %s", err)
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}
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- fmt.Println(play(decks))
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+ winningDeck := play(decks)
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+ fmt.Println("Part1:", part1(winningDeck))
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}
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