Can someone give me a hint at what I'm missing

enum Teams: String { case Sharks case Dragons case Raptors }

// Data assigned to a player struct Players { let name: String let height: Double var experience: Bool let guardianName: String var team: String? }

// Dictionary of players var playDict = [0: Players(name: "Joe Smith", height: 42, experience: true, guardianName: "Jim and Jan Smith", team: nil), 1: Players(name: "Jill Tanner", height: 36, experience: true, guardianName: "Clara Tanner", team: nil), 2: Players(name: "Bill Bon", height: 43, experience: true, guardianName: "Sara and Jenny Bon", team: nil), 3: Players(name: "Eva Gordon", height: 45, experience: false, guardianName: "Wendy and Mike Gordon", team: nil), 4: Players(name: "Matt Gill", height: 40, experience: false, guardianName: "Charles and Sylvia Gill", team: nil), 5: Players(name: "Kimmy Stein", height: 41, experience: false, guardianName: "Bill and Hillary Stein", team: nil), 6: Players(name: "Sammy Adams", height: 45, experience: false, guardianName: "Jeff Adams", team: nil), 7: Players(name: "Karl Saygan", height: 42, experience: true, guardianName: "Heather Bledsoe", team: nil), 8: Players(name: "Suzane Greenburg", height: 44, experience: true, guardianName: "Henrietta Dumas", team: nil), 9: Players(name: "Sal Dali", height: 41, experience: false, guardianName: "Gala Dali", team: nil), 10: Players(name: "Joe Kavalier", height: 39, experience: false, guardianName: "Sam and Elaine Kavalier", team: nil), 11: Players(name: "Ben Finklestein", height: 44, experience: false, guardianName: "Aaron and Jill Finklestein", team: nil), 12: Players(name: "Diego Soto", height: 41, experience: true, guardianName: "Robin and Sarika Soto", team: nil), 13: Players(name: "Chloe Alaska", height: 47, experience: false, guardianName: "David and Jamie Alaska", team: nil), 14: Players(name: "Arnold Willis", height: 43, experience: false, guardianName: "Claire Willis", team: nil), 15: Players(name: "Phillip Helm", height: 44, experience: true, guardianName: "Thomas Helm and Eva Jones", team: nil), 16: Players(name: "Les Clay", height: 42, experience: true, guardianName: "Wynonna Brown", team: nil), 17: Players(name: "Herschel Krustofski", height: 45, experience: true, guardianName: "Hyman and Rachel Krustofski", team: nil)]

// finding number of experienced players var numberOfExperiencedPlayers = 0 for number in (0 ..< playDict.count) { if (playDict[number]?.experience == true) { numberOfExperiencedPlayers += 1 } }

// variable declaration var numberOfTeams = 3 var totalPlayersPerTeam = playDict.count/numberOfTeams var experiencedPlayersPerTeam = numberOfExperiencedPlayers/numberOfTeams var nonExperiencedPlayersPerTeam = totalPlayersPerTeam - experiencedPlayersPerTeam

// Helper function - finds average of a team func averageHeightForTeam(currentTeam: String) -> Double { var average = 0.0 for number in (0 ..< playDict.count) { if (playDict[number]?.team == currentTeam) { average += (playDict[number]?.height)! } } average /= Double(totalPlayersPerTeam) return average }

// Helper function - sorts players based on experience and not already associated with a team // assigning player to a team func sortPlayers(newTeam: String, experiencedPlayers: Int, experienced: Bool) { var counter = 0 for number in (0 ..< playDict.count) { if (playDict[number]?.experience == experienced && playDict[number]?.team == nil && counter < experiencedPlayers) { playDict[number]?.team = newTeam counter += 1 } } }

// Helper function - reset team to nil if the func resetTeamToNil(currentTeam: String) { for number in (0 ..< playDict.count) { if (playDict[number]?.team == currentTeam) { playDict[number]?.team = nil } } }

// Assign teams func teamAssignment(currentTeam: String) { repeat { sortPlayers(currentTeam, experiencedPlayers: experiencedPlayersPerTeam, experienced: true) sortPlayers(currentTeam, experiencedPlayers: nonExperiencedPlayersPerTeam, experienced: false) averageHeightForTeam(currentTeam)

    if (averageHeightForTeam(currentTeam) > 1.5) {
        resetTeamToNil(currentTeam)
    }
} while (averageHeightForTeam(currentTeam) > 1.5)

}

// assigning teams to players teamAssignment(Teams.Sharks.rawValue) teamAssignment(Teams.Dragons.rawValue) teamAssignment(Teams.Raptors.rawValue)

// Writing letters to players on each team for number in (0 ..< playDict.count) { if (playDict[number]?.team == Teams.Sharks.rawValue) { print("Dear (playDict[number]?.guardianName), \nYour child (playDict[number]?.name) is on team (playDict[number]?.team) and practice is on Tuesdays at 6pm.\nThank you for joinning.") } if (playDict[number]?.team == Teams.Dragons.rawValue) { print("Dear (playDict[number]?.guardianName), \nYour child (playDict[number]?.name) is on team (playDict[number]?.team) and practice is on Wednesdays at 6pm.\nThank you for joinning.") } if (playDict[number]?.team == Teams.Raptors.rawValue) { print("Dear (playDict[number]?.guardianName), \nYour child (playDict[number]?.name) is on team (playDict[number]?.team) and practice is on Thursdays at 6pm.\nThank you for joinning.") } }