Discussion on: Daily Challenge #74 - Free Pizza

import Foundation

/*
 Free Pizza Challenge Function

 @param customerDict a list of customer names(keys, String) with associated transaction lists(values, [Int])
 @param minNum is the minimum number of transactions over the specified dollar amount to be eligible for rewards
 @param minAmt is the dollar amount the transactions need to surpass to be eligible for rewards.

 @return a list of the customer dictionary entries which are all eligible for rewards.
 */
func customersWithRewards(customerDict:[String : [Int]],
                          minNum:Int,
                          minAmt:Int) -> [String : [Int]] {

    var rewarded:[String : [Int]] = [String : [Int]]()

    for customer in customerDict {  
        // filter all transactions, leaving only ones greater than or equal to the Min Amount
        let eligibleTransactions = customer.value.filter({ $0 >= minAmt})

        // see if there are enough transactions over the given cost, and if so add the customer and their transaction list to the dictionary to return.
        if (eligibleTransactions.count >= minNum) {
            rewarded[customer.key] = customer.value
        }
    }
    return rewarded
}




// variable set 1
let min_orders1 = 5
let min_price1 = 20
let customers1 = ["John Doe" : [22, 30, 11, 17, 15, 52, 27, 12],
                  "Jane Doe" : [5, 17, 30, 33, 40, 22, 26, 10, 11, 45]]

// variable set 2
let min_orders2 = 2
let min_price2 = 50
let customers2 = ["Joey Bonzo" : [22, 67, 53, 29],
                  "Jennifer Bonzo" : [51, 19]]

// variable set 3
let min_orders3 = 3
let min_price3 = 15
let customers3 = ["Natsumi Sakamoto" : [15, 15, 14],
                  "Gorou Hironaka" : [15, 15, 15],
                  "Shinju Tanabe" : [120, 240]]


// case 1
print("Eligible Customers for case 1:")
print(customersWithRewards(customerDict: customers1, minNum: min_orders1, minAmt: min_price1))
print("\n\n")

// case 2
print("Eligible Customers for case 2:")
print(customersWithRewards(customerDict: customers2, minNum: min_orders2, minAmt: min_price2))
print("\n\n")

// case 3
print("Eligible Customers for case 3:")
print(customersWithRewards(customerDict: customers3, minNum: min_orders3, minAmt: min_price3))
print("\n\n")

Eligible Customers for case 1:
["Jane Doe": [5, 17, 30, 33, 40, 22, 26, 10, 11, 45]]


Eligible Customers for case 2:
["Joey Bonzo": [22, 67, 53, 29]]


Eligible Customers for case 3:
["Gorou Hironaka": [15, 15, 15]]


Program ended with exit code: 0