Find duplicated accumulator from a stream

duplicated_accumulator.go

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"

	"github.com/AndreasBriese/bbloom"
)

func duplicatedFrequency(frequencies []string) string {
	var register int
	var registerStr string
	bf := bbloom.New(float64(1<<18), float64(0.001))

	for {
		for _, freq := range frequencies {
			val, _ := strconv.Atoi(freq)
			register = register + val
			registerStr = strconv.Itoa(register)

			if bf.Has([]byte(registerStr)) {
				return registerStr
			}

			bf.Add([]byte(registerStr))
		}
	}
}

func main() {
	fp, _ := os.Open("01.txt")
	defer fp.Close()

	var frequencies []string
	fileScanner := bufio.NewScanner(fp)
	for fileScanner.Scan() {
		frequencies = append(frequencies, fileScanner.Text())
	}

	dup := duplicatedFrequency(frequencies)
	fmt.Println(dup)
}