题解 | #提取不重复的整数#

import Foundation

while let line = readLine() {
    var num = Int(line)!
    var list = [String]()
    while num > 0 {
        let n = num % 10
        num = num / 10
        if !list.contains("\(n)") {
            list.append("\(n)")
        }
    }

    let result = list.joined(separator:"")
    print(result)
    // var p = list.count - 1
    // let result = list.reduce(0) { v, t in
    //     let temp = Int(v) + Int(Double(t) * pow(Double(10), Double(p)))
    //     p -= 1
    //     return temp
    // }

    // print("\(result)")

    // let parts = line.split(separator: " ")
    // print(Int(parts[0])! + Int(parts[1])!)
}