masakih

struct GeneratedError<T>: Error {
    
    let host: T
    let id: Int
    let message: String
    
    let file: String
    let line: Int
    

masakih

func setBit(_ x: Int, _ n: Int) -> Int { ... }
func unsetBit(_ x: Int, _ n: Int) -> Int { ... }
func reverseBit(_ x: Int, _ n: Int) -> Int { ... }

func print8Bit(_ x: Int) { ... }

// 標準入力から整数を読み込む
// 整数以外であれば例外
func readInt() throws -> Int { ... }

masakih

struct JoinedCollection<C1: Collection, C2: Collection, Element>: Collection
where C1.Element == Element, C2.Element == Element, C1.Index == Int, C2.Index == Int {
  var left: C1
  var right: C2

  init(_ left: C1, _ right: C2) {
    self.left = left
    self.right = right
  }

masakih

let aa: [[Int]] = [
    [768, 527, 845],
    [978, 444, 266],
    [777, 746, 419],
    [109, 58, 54],
    [544, 391, 391],
    [937, 308, 901],
    [105, 310, 594],
    [830, 795, 221],
    [792, 547, 688],

masakih

let aa = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3 ]
func getInt() -> Int { aa.count }
func getIntArray() -> [Int] { aa }

///
let n = getInt()

var dp = Array<Array<Int?>>(repeating: Array<Int?>(repeating: nil, count: n), count: n)
dp[0] = getIntArray()

masakih

let aa = [0, 2, 7, 8]
func getIntArray() -> [Int] { aa }

///

var dp = Array<Array<Int?>>(repeating: Array<Int?>(repeating: nil, count: 4), count: 4)
dp[0] = getIntArray()

func solve(_ n: Int, _ m: Int) -> Int {
    

masakih

let aa = [696, 300, 458, 384, 75, 431, 353, 626, 219, 941, 46, 816, 724, 361]
func getInt2() -> (Int, Int) { (899, 14) }
func getIntArray() -> [Int] { aa }

///
let (n, m) = getInt2()
let a = getIntArray()

var dp = Array<Bool?>(repeating: nil, count: n + 1)
dp[0] = true

masakih

let aa = [3, 1, 4, 1, 5, 9, 2, 6]
func getInt2() -> (Int, Int) { (aa.count, 4) }
func getIntArray() -> [Int] { aa }

///
let (n, m) = getInt2()
let a = getIntArray()

var dp = Array<Int?>(repeating: nil, count: n)
dp[0] = 0

masakih

struct Reader: Sequence {
    struct Iterator: IteratorProtocol {
        func next() -> String? {
            readLine() 
        }
    }
    
    func makeIterator() -> Iterator {
        .init()
    }

masakih

struct Reader: Sequence {
    struct Iterator: IteratorProtocol {
        func next() -> String? {
            readLine() 
        }
    }
    
    func makeIterator() -> Iterator {
        .init()
    }