π Problem Solution
Edabit Very Easy Swift
Fomagran π»
2020. 1. 19. 15:18
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λ°μν
Generate a Countdown of Numbers in an Array
Example
countdown(5) β [5, 4, 3, 2, 1, 0] countdown(1) β [1, 0] countdown(0) β [0]
μ«μλ₯Ό λ£μΌλ©΄ μ«μλΆν° 0κΉμ§ λ°°μ΄μμ λ£μ΄μ 보μ¬μ€ κ·Έλμ μμλ μ«μ -> 0 μμΌλ‘
λ΄ νμ΄
forλ¬Έμ μ¬μ©νμ¬ μ«μμμ 0λΆν° μ°¨λ‘λλ‘ λΉΌμ λ£μ΄μ£Όλ©΄ λκ² λ€ μκ°
func countdown(_ start: Int) -> [Int] {
var arr = [Int]()
for i in 0...start{
arr.append(start-i)
}
return arr
}
λ μ’μ μ λ΅
ν΅μ¬ λ reversed() μμ?
func countdown(_ start: Int) -> [Int] {
return (0...start).reversed()
}
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λ°μν