Fizz Buzz

without_for.go

package main

import (
        "fmt"
)

const MAX = 100

func fb(num int) {
        out := ""
        if num%3 == 0 {
                out += "fizz"
        }
        if num%5 == 0 {
                out += "buzz"
        }
        if len(out) == 0 {
                out = fmt.Sprintf("%d", num)
        }
        fmt.Printf("%s,", out)

        if num < MAX {
                fb(num + 1)
        }
}

func main() {
        fb(1)
}

without_mod.go

package main

import (
        "fmt"
)

func main() {
        for f, b, c := 1, 1, 1; c <= 100; f, b, c = f+1, b+1, c+1 {
                out := ""
                if f == 3 {
                        out = "fizz"
                        f = 0
                }
                if b == 5 {
                        out += "buzz"
                        b = 0
                }
                if out != "" {
                        fmt.Printf("%s,", out)
                } else {
                        fmt.Printf("%d,", c)
                }
        }
}