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Merge pull requestneetcode-gh#1622 from loczek/0535-encode-and-decode-tinyurl

Create: 0535-encode-and-decode-tinyurl.ts

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	`1`	`+constencodeMap={};`
	`2`	`+constdecodeMap={};`
	`3`	`+letsize=0;`
	`4`	`+`
	`5`	`+/**`
	`6`	`+ * Encodes a URL to a shortened URL.`
	`7`	`+ */`
	`8`	`+functionencode(longUrl:string):string{`
	`9`	`+if(!encodeMap.hasOwnProperty(longUrl)){`
	`10`	`+letshortUrl=size+1;`
	`11`	`+size+=1;`
	`12`	`+encodeMap[longUrl]=shortUrl;`
	`13`	`+decodeMap[shortUrl]=longUrl;`
	`14`	`+}`
	`15`	`+`
	`16`	`+returnencodeMap[longUrl];`
	`17`	`+}`
	`18`	`+`
	`19`	`+/**`
	`20`	`+ * Decodes a shortened URL to its original URL.`
	`21`	`+ */`
	`22`	`+functiondecode(shortUrl:string):string{`
	`23`	`+returndecodeMap[shortUrl];`
	`24`	`+}`
	`25`	`+`
	`26`	`+/**`
	`27`	`+ * Your functions will be called as such:`
	`28`	`+ * decode(encode(strs));`
	`29`	`+ */`

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