/*
A standard deck of 52 playing cards consists of four suits:
spades (♠), hearts (♥), diamonds (♦), and clubs (♣).
Each suit contains 13 ranks:
Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, King.
Cards of spades and clubs are black, while hearts and diamonds are red.
Color is informational only — it does not affect shuffling or random selection.
*/
/*
This program picks 5 random cards from a standard 52‑card deck.
It uses:
- [String] arrays to store ranks, suits, and the deck
- shuffled() for efficient randomization (Fisher–Yates internally)
- Functions for clean structure and idiomatic Swift
Algorithm:
1. Build the deck (52 strings).
2. Shuffle using shuffled().
3. Print the first 5 cards.
*/
func buildDeck() -> [String] {
let ranks: [String] = ["2","3","4","5","6","7","8","9","10","J","Q","K","A"]
let suits: [String] = ["Clubs", "Diamonds", "Hearts", "Spades"]
// Combine each rank with each suit → 52 unique cards
var deck: [String] = []
for suit in suits {
for rank in ranks {
deck.append("\(rank) of \(suit)")
}
}
return deck
}
func shuffleDeck(_ deck: [String]) -> [String] {
// Swift's shuffled() uses Fisher–Yates under the hood
return deck.shuffled()
}
func main() {
// Step 1: Build the deck
let deck: [String] = buildDeck()
// Step 2: Shuffle the deck
let shuffled: [String] = shuffleDeck(deck)
// Step 3: Draw the first 5 cards
print("Your 5 random cards:")
for i in 0..<5 {
print(shuffled[i])
}
}
main()
/*
run:
Your 5 random cards:
4 of Spades
K of Diamonds
6 of Diamonds
J of Diamonds
K of Hearts
*/
