結果

問題 No.1336 Union on Blackboard
ユーザー semisagisemisagi
提出日時 2021-01-15 22:09:30
言語 Swift
(5.10.0)
結果
AC  
実行時間 14 ms / 2,000 ms
コード長 3,222 bytes
コンパイル時間 3,972 ms
コンパイル使用メモリ 185,532 KB
実行使用メモリ 15,872 KB
最終ジャッジ日時 2024-05-05 00:01:38
合計ジャッジ時間 5,247 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge1
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 9 ms
15,616 KB
testcase_01 AC 11 ms
15,488 KB
testcase_02 AC 11 ms
15,616 KB
testcase_03 AC 11 ms
15,616 KB
testcase_04 AC 11 ms
15,488 KB
testcase_05 AC 11 ms
15,616 KB
testcase_06 AC 11 ms
15,616 KB
testcase_07 AC 12 ms
15,872 KB
testcase_08 AC 11 ms
15,616 KB
testcase_09 AC 11 ms
15,616 KB
testcase_10 AC 12 ms
15,488 KB
testcase_11 AC 13 ms
15,872 KB
testcase_12 AC 13 ms
15,616 KB
testcase_13 AC 14 ms
15,744 KB
testcase_14 AC 14 ms
15,616 KB
testcase_15 AC 12 ms
15,744 KB
testcase_16 AC 14 ms
15,744 KB
testcase_17 AC 14 ms
15,616 KB
testcase_18 AC 13 ms
15,616 KB
testcase_19 AC 14 ms
15,744 KB
testcase_20 AC 13 ms
15,488 KB
testcase_21 AC 13 ms
15,616 KB
testcase_22 AC 13 ms
15,488 KB
testcase_23 AC 13 ms
15,488 KB
testcase_24 AC 13 ms
15,488 KB
testcase_25 AC 13 ms
15,488 KB
testcase_26 AC 13 ms
15,488 KB
testcase_27 AC 12 ms
15,488 KB
testcase_28 AC 13 ms
15,616 KB
testcase_29 AC 13 ms
15,872 KB
testcase_30 AC 10 ms
15,488 KB
testcase_31 AC 9 ms
15,744 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

import Foundation

struct Scanner {
    private var elements = [String]()
    private var index = 0

    mutating func peek() -> String {
        while elements.count == index {
            elements = readLine()!.split(separator: " ").map(String.init)
            index = 0
        }
        return elements[index]
    }

    mutating func next() -> String {
        defer { index += 1 }
        return peek()
    }

    mutating func nextInt() -> Int {
        return Int(next())!
    }

    mutating func nextInts(_ n: Int) -> [Int] {
        return (0 ..< n).map { _ in nextInt() }
    }

    mutating func nextDouble() -> Double {
        return Double(next())!
    }
}

let mod = 1000000007

struct Zn: CustomStringConvertible, AdditiveArithmetic {
    let n: Int

    init(_ n: Int) {
        self.n = n
    }

    var description: String {
        String(self.n)
    }

    static var zero = Zn(0)
    static var one = Zn(1)

    static func + (lhs: Self, rhs: Self) -> Self {
        let n = lhs.n + rhs.n
        return Zn(n < mod ? n : n - mod)
    }

    static func + (lhs: Self, rhs: Int) -> Self {
        return lhs + Zn(rhs)
    }

    static func + (lhs: Int, rhs: Self) -> Self {
        return Zn(lhs) + rhs
    }

    static func - (lhs: Self, rhs: Self) -> Self {
        let n = lhs.n - rhs.n
        return Zn(n >= 0 ? n : n + mod)
    }

    static func - (lhs: Self, rhs: Int) -> Self {
        return lhs - Zn(rhs)
    }

    static func - (lhs: Int, rhs: Self) -> Self {
        return Zn(lhs) - rhs
    }

    static func * (lhs: Self, rhs: Self) -> Self {
        Zn((lhs.n * rhs.n) % mod)
    }

    static func * (lhs: Self, rhs: Int) -> Self {
        return lhs * Zn(rhs)
    }

    static func * (lhs: Int, rhs: Self) -> Self {
        return Zn(lhs) * rhs
    }

    static func / (lhs: Zn, rhs: Zn) -> Self {
        return lhs * rhs.inverse
    }

    static func / (lhs: Int, rhs: Zn) -> Self {
        return Zn(lhs) * rhs.inverse
    }

    static func / (lhs: Zn, rhs: Int) -> Self {
        return lhs * Zn(rhs).inverse
    }

    static func += (lhs: inout Self, rhs: Self) {
        lhs = lhs + rhs
    }

    static func += (lhs: inout Self, rhs: Int) {
        lhs = lhs + Zn(rhs)
    }

    static func -= (lhs: inout Self, rhs: Self) {
        lhs = lhs - rhs
    }

    static func -= (lhs: inout Self, rhs: Int) {
        lhs = lhs - Zn(rhs)
    }

    static func *= (lhs: inout Self, rhs: Self) {
        lhs = lhs * rhs
    }

    static func *= (lhs: inout Self, rhs: Int) {
        lhs = lhs * Zn(rhs)
    }

    static func /= (lhs: inout Self, rhs: Self) {
        lhs = lhs / rhs
    }

    static func /= (lhs: inout Self, rhs: Int) {
        lhs = lhs / Zn(rhs)
    }

    func pow(_ n: Int) -> Self {
        if n == 0 {
            return Zn(1)
        } else if n % 2 == 1 {
            return self * self.pow(n - 1)
        } else {
            return (self * self).pow(n / 2)
        }
    }

    var inverse: Self {
        self.pow(mod - 2)
    }
}



var scanner = Scanner()
let T = scanner.nextInt()

for _ in 0 ..< T {
    let N = scanner.nextInt()
    let A = scanner.nextInts(N)
    print(A.map(Zn.init).map { $0 + Zn(1) }.reduce(.one, *) - Zn(1))
}
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