40 lines
650 B
Go
40 lines
650 B
Go
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package main
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import (
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"bufio"
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"fmt"
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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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// https://en.wiktionary.org/wiki/fishes#English
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fishes := map[int]int{}
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s := bufio.NewScanner(os.Stdin)
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s.Scan()
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for _, fishStr := range strings.Split(s.Text(), ",") {
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fish, _ := strconv.Atoi(fishStr)
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fishes[fish]++
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}
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for x := 0; x < 256; x++ {
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newFishes := map[int]int{}
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// handle usual decrements
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for i := 8; i > 0; i-- {
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newFishes[i-1] = fishes[i]
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}
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// handle the new fishes
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newFishes[6] += fishes[0]
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newFishes[8] += fishes[0]
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fishes = newFishes
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}
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sum := 0
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for _, count := range fishes {
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sum += count
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}
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fmt.Println(sum)
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}
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