题解 | #坐标移动#

package main

import "fmt"

func main() {

    var numSlice []int
    for {

        var bottleNum int
        fmt.Scanln(&bottleNum)
        if bottleNum == 0 {
            break
        }
        numSlice = append(numSlice, bottleNum)

    }

    for i := 0; i < len(numSlice); i++ {
        var count int = 0
        for {

            divide := numSlice[i] / 3
            count += divide
            remain := numSlice[i] % 3
            numSlice[i] = remain + divide
            if numSlice[i] < 3 {
                if numSlice[i] == 2 {
                    count += 1
                }
                break
            }

        }

        fmt.Println(count)
    }
}