add: maps project — log parser

x-tba/xxx-project-domain-visits.1/log.txt

@@ -1,8 +0,0 @@
-learngoprogramming.com 10
-learngoprogramming.com 5
-learngoprogramming.com 10
-learngoprogramming.com 20
-golang.org 4
-golang.org 6
-golang.org 5
-golang.org 10

x-tba/xxx-project-domain-visits.1/main.go

@@ -1,64 +0,0 @@
-// For more tutorials: https://blog.learngoprogramming.com
-//
-// Copyright © 2018 Inanc Gumus
-// Learn Go Programming Course
-// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
-//
-
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"os"
-	"strconv"
-	"strings"
-)
-
-func main() {
-	var (
-		// use a comparable struct for the keys
-		visits = make(map[string]int)
-
-		domains    []string
-		dupDomains = make(map[string]bool)
-
-		line int
-	)
-
-	in := bufio.NewScanner(os.Stdin)
-	for in.Scan() {
-		line++
-
-		fields := strings.Fields(in.Text())
-		if len(fields) != 2 {
-			fmt.Printf("Wrong input: %v\n", fields)
-			return
-		}
-
-		domain, svisit := fields[0], fields[1]
-
-		dvisit, err := strconv.Atoi(svisit)
-		if err != nil {
-			fmt.Printf("Wrong input: %q (line #%d)\n", svisit, line)
-			return
-		}
-		visits[domain] += dvisit
-
-		// only add the domain once
-		if !dupDomains[domain] {
-			domains = append(domains, domain)
-			dupDomains[domain] = true
-		}
-	}
-
-	// print the summary grouped by domain
-	var total int
-	for _, d := range domains {
-		v := visits[d]
-		fmt.Printf("%-25s -> %d\n", d, v)
-		total += v
-	}
-
-	fmt.Printf("\n%-25s -> %d\n", "TOTAL", total)
-}