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929. Unique Email Addresses in Java and Swift

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	`1`	`+classSolution {`
	`2`	`+privateStringgetFormattedEmail(Stringemail) {`
	`3`	`+String[]arr =email.split("@");`
	`4`	`+StringlocalName =arr[0];`
	`5`	`+StringdomainName =arr[1];`
	`6`	`+`
	`7`	`+// Only keep the first part of "+" sign`
	`8`	`+String[]arrLocalWithPlus =localName.split("\\+");`
	`9`	`+localName =arrLocalWithPlus[0];`
	`10`	`+`
	`11`	`+// Replace "."/dots`
	`12`	`+localName =localName.replace(".","");`
	`13`	`+`
	`14`	`+returnlocalName +"@" +domainName;`
	`15`	`+ }`
	`16`	`+`
	`17`	`+publicintnumUniqueEmails(String[]emails) {`
	`18`	`+Set<String>uniqueEmails =newHashSet<>();`
	`19`	`+for(Stringemail:emails) {`
	`20`	`+StringformattedEmail =getFormattedEmail(email);`
	`21`	`+uniqueEmails.add(formattedEmail);`
	`22`	`+ }`
	`23`	`+returnuniqueEmails.size();`
	`24`	`+ }`
	`25`	`+}`

Lines changed: 28 additions & 0 deletions

Original file line number	Diff line number	Diff line change
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	`1`	`+classSolution{`
	`2`	`+func getFormattedEmail(from email:String)->String{`
	`3`	`+letarr= email.split(separator:"@")`
	`4`	`+`
	`5`	`+varlocalNameInitial=arr[0]`
	`6`	`+letdomainName=arr[1]`
	`7`	`+`
	`8`	`+ // Ignore everything from first + (plus) sign`
	`9`	`+letarrLocalNameSplitPlus= localNameInitial.split(separator:"+")`
	`10`	`+guardlet localNameWithoutPlus= arrLocalNameSplitPlus.firstelse{return""}`
	`11`	`+`
	`12`	`+ // Remove . (dot) sign`
	`13`	`+letlocalName= localNameWithoutPlus.replacingOccurrences(of:".", with:"")`
	`14`	`+`
	`15`	`+return"\(localName)@\(domainName)"`
	`16`	`+}`
	`17`	`+`
	`18`	`+func numUniqueEmails(_ emails:[String])->Int{`
	`19`	`+varuniqueEmails:Set<String>=Set()`
	`20`	`+`
	`21`	`+ emails.forEach{ emailin`
	`22`	`+letformattedEmail=getFormattedEmail(from: email)`
	`23`	`+ uniqueEmails.insert(formattedEmail)`
	`24`	`+}`
	`25`	`+`
	`26`	`+return uniqueEmails.count`
	`27`	`+}`
	`28`	`+}`

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