no message

Author: Partho Biswas

leetcode.com/swift/DS_ALGO_PRAC.playground/Contents.swift

@@ -1,16 +1 @@
-class Solution {
-    func groupStrings(_ strings: [String]) -> [[String]] {
-        var groupMap = [String:[String]]()
-        strings.forEach { string in
-            let patttern = getPatternKey(string)
-            groupMap[patttern, default: [String]()] += [string]
-        }
-        return Array(groupMap.values)
-    }
-    
-    func getPatternKey(_ string: String) -> String {
-        let asciiValues = string.unicodeScalars.map({ Int($0.value) })
-        let diffValue = asciiValues.map({ (26 + $0 - asciiValues[0]) % 26 })
-        return diffValue.reduce("", { $0 + " \($1)" })
-    }
-}
+