swiftAlgorithm/Programmers/Programmers/level3/[1차] 셔틀버스.swift at main · hwangJi-dev/swiftAlgorithm

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// [1차] 셔틀버스.swift

// Programmers1

// Created by hwangJi on 2023/04/11.

import Foundation

func solution(_ n:Int, _ t:Int, _ m:Int, _ timetable:[String]) -> String {

var startTime = 900

var cornTime = startTime

var timetable = timetable.map({ Int($0.split(separator: ":").joined())! }).filter({ $0 != 2359 }).sorted(by: >)

var tada = 0

for i in 1...n {

var m = m

while m > 0 && !timetable.isEmpty {

tada = timetable.popLast()!

if tada <= startTime {

m -= 1

} else {

timetable.append(tada)

tada = startTime

break

}

if n == i {

if m > 0 {

cornTime = startTime > tada ? startTime : tada

} else {

cornTime = tada - 1

if cornTime % 100 >= 60 {

cornTime -= 40

}

startTime += t

if startTime % 100 >= 60 {

startTime += 40

}

return String(format: "%02d:%02d", cornTime / 100, cornTime % 100)

}