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  • leetcode929

    package main
    
    import (
        "fmt"
        "strings"
    )
    
    func numUniqueEmails(emails []string) int {
        var dic map[string]int
        dic = make(map[string]int)
        for _, s := range emails {
            strArr := strings.Split(s, "@")
            localname := strArr[0]
            domainname := strArr[1]
            plusIndex := strings.Index(localname, "+")
            if plusIndex > 0 {
                localname = localname[0:plusIndex]
            }
            localname = strings.Replace(localname, ".", "", -1)
            realmail := localname + "@" + domainname
            _, ok := dic[realmail]
            if ok {
                //found realmail
            } else {
                dic[realmail] = 1
            }
        }
        return len(dic)
    }
    
    func main() {
        emails := []string{"test.email+alex@leetcode.com", "test.e.mail+bob.cathy@leetcode.com", "testemail+david@lee.tcode.com"}
        num := numUniqueEmails(emails)
        fmt.Println(num)
    }
    public class Solution
        {
            public int NumUniqueEmails(string[] emails)
            {
                var dic = new Dictionary<string, int>();
                foreach (var email in emails)
                {
                    var mails = email.Split('@');
                    var localname = mails[0];
                    var domainname = mails[1];
    
                    var plusIndex = localname.IndexOf('+');
                    if (plusIndex >= 0)
                    {
                        localname = localname.Substring(0, plusIndex);
                    }
                    localname = localname.Replace(".", "");
                    var realmail = localname + "@" + domainname;
    
                    if (!dic.ContainsKey(realmail))
                    {
                        dic.Add(realmail, 1);
                    }
                }
                return dic.Count;
            }
        }
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  • 原文地址:https://www.cnblogs.com/asenyang/p/9867158.html
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