LeetCode/Go/1108.go

package main;
// 1108. Defanging an IP Address

import (
	"os"
	"fmt"
)

func defangIPaddr(address string) string {
	var res [3+3+3+3+9]rune
	var i int = 0

	for _, c := range address {
		if c == '.' {
			res[i] = '['; i += 1
			res[i] = '.'; i += 1
			res[i] = ']'; i += 1
			continue
		}
		res[i] = c
		i += 1
	}

	return string(res[:i])
}

func main() {
	r := func (addr string) {
		fmt.Printf("defangIPaddr(\"%s\") -> \"%s\"\n", addr, defangIPaddr(addr))
	}

	r("1.1.1.1")
	r("255.100.50.0")

	os.Exit(0)
}