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Merge pull requestneetcode-gh#59 from chandra9302/patch-6

Create 242-Valid-Anagrams.swift

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	`1`	`+/**`
	`2`	`+ * Question Link: https://leetcode.com/problems/valid-anagram/`
	`3`	`+ */`
	`4`	`+`
	`5`	`+classValidAnagram{`
	`6`	`+func isAnagram(_ s:String, _ t:String)->Bool{`
	`7`	`+if s.count!= t.count{`
	`8`	`+returnfalse`
	`9`	`+}`
	`10`	`+varcountS=[Int:Int]()`
	`11`	`+varcountT=[Int:Int]()`
	`12`	`+letsChars=Array(s)`
	`13`	`+lettChars=Array(t)`
	`14`	`+foriin0..<sChars.count{`
	`15`	`+countS[Int(sChars[i].asciiValue!)]=1+ countS[Int(sChars[i].asciiValue!), default:0]`
	`16`	`+countT[Int(tChars[i].asciiValue!)]=1+ countT[Int(tChars[i].asciiValue!), default:0]`
	`17`	`+}`
	`18`	`+for(key, _)in countS{`
	`19`	`+ifcountS[key]!=countT[key, default:0]{`
	`20`	`+returnfalse`
	`21`	`+}`
	`22`	`+}`
	`23`	`+returntrue`
	`24`	`+}`
	`25`	`+}`

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