[Swift] 나이순 정렬

https://www.acmicpc.net/problem/10814

 

 

import Foundation

struct Person {
    var name: String
    var age: Int
    var index: Int

    init(_ info: [String], index: Int) {
        self.name = info[1]
        self.age = Int(info[0])!
        self.index = index
    }
}

let N = Int(readLine()!)!
var people: [Person] = []

for index in 0..<N {
    let info = readLine()!.components(separatedBy: " ")
    let person = Person(info, index: index)
    people.append(person)
}

people.sort {
    if $0.age == $1.age {
        return $0.index < $1.index
    }

    return $0.age < $1.age
}

people.forEach {
    print("\($0.age) \($0.name)")
}