Initial data commit

Task/Move-to-front-algorithm/Swift/move-to-front-algorithm.swift

@@ -0,0 +1,69 @@
+var str="broood"
+var number:[Int]=[1,17,15,0,0,5]
+
+//function to encode the string
+func encode(st:String)->[Int]
+{
+	
+var array:[Character]=["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
+	
+	var num:[Int]=[]
+	var temp:Character="a"
+	var i1:Int=0
+	for i in st.characters
+	{
+		for j in 0...25
+		{
+			if i==array[j]
+			{
+				num.append(j)
+				temp=array[j]
+				i1=j
+				while(i1>0)
+				{
+					array[i1]=array[i1-1]
+					i1=i1-1
+		
+				}
+				array[0]=temp
+			}
+			
+		}
+		
+		
+	}
+	
+	return num
+	
+}
+
+func decode(s:[Int])->[Character]
+{
+	
+	var st1:[Character]=[]
+	var alph:[Character]=["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
+	var temp1:Character="a"
+	var i2:Int=0
+	for i in 0...s.character.count-1
+	{
+		i2=s[i]
+		st1.append(alph[i2])
+		temp1=alph[i2]
+			
+				while(i2>0)
+				{
+					alph[i2]=alph[i2-1]
+					i2=i2-1
+		
+				}
+				alph[0]=temp1
+		
+	}
+	return st1					
+	
+}
+
+var encarr:[Int]=encode(st:str)
+var decarr:[Character]=decode(s:number)
+print(encarr)
+print(decarr)