30 days of code: day 8 dictionaries and maps in SWIFT2

HackerRank-30-dictionaries-and-maps.swift

import Foundation

func telephones(input : String) {
    var map  = [String : String]()    
    
    let newlineChars = NSCharacterSet.newlineCharacterSet()
    let spaceLineChars = NSCharacterSet.whitespaceCharacterSet()
    
    let allLines = input.utf16.split { newlineChars.characterIsMember($0) }.flatMap(String.init)
    guard allLines.count > 0 else{
        return
    }

    let nLines = Int(allLines[0])!

    for aLine in allLines[1...nLines] {
        let data = aLine.utf16.split { spaceLineChars.characterIsMember($0) }.flatMap(String.init)
        map[data[0]] = data[1]
    }

    for aLine in allLines[nLines+1...allLines.count-1] {
        let number : String? = map[aLine]
        
        if let number = number {
            print ("\(aLine) \(number)")
        }else{
            print("Not found")
        }
    }
    
}


let input = "3\nsam 99912222\ntom 11122222\nharry 12299933\nsam\nedward\nharry\n"

telephones(input)

Solution to this problem using Swift 2

https://www.hackerrank.com/challenges/30-dictionaries-and-maps

Sample Input

3
sam 99912222
tom 11122222
harry 12299933
sam
edward
harry

Sample Output

sam=99912222
Not found
harry=12299933