Go Hamming Distance

go_hamming_distance

package main

import (
	"errors"
	"log"
)

func getDistance(s1, s2 string) (int, error) {
	if len(s1) != len(s2) {
		return 0, errors.New("ERROR:  Strings are of different lengths")
	}
	var differences int
	for i, x := range s1 {
		if string(x) != string(s2[i]) {
			differences++
		}
	}
	return differences, nil
}

func main() {
	distance, err := getDistance("GAGCCTACTAACGGGAT", "ATCGTAATGACGGCCT")
	if err != nil {
		log.Fatalln(err)
	}
	log.Printf("Hamming Distance:  %d\n", distance)
}