Random Coffee

AAA README.md

cat data | go run main.go

data

person1
person2
person3
person4

main.go

package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	s := bufio.NewScanner(os.Stdin)
	s.Split(bufio.ScanLines)
	entries := make(map[string]struct{})
	for s.Scan() {
		entries[s.Text()] = struct{}{}
	}
	separator := [2]string{" \u2615 ", "\n"}
	i := 0
	for k := range entries {
		fmt.Printf("@%v%v", k, separator[i%len(separator)])
		i++
	}
}