Submission #53616443

---

Source Code Expand

// AtCoder Beginner Contest 354

import Foundation
import Collections

let YES = "Yes"
let NO = "No"

func main() {
  let n = readInt()
  var cards = [(Int, Int, Int)]()

  for i in 0..<n {
      let (a, c) = read2Ints()
      cards.append((i + 1, a, c))
  }

  cards.sort { $0.2 < $1.2 }

  var result = [(Int, Int)]()
  var maxA = -1

  for card in cards {
      let (index, a, c) = card
      if a > maxA {
          maxA = a
          result.append((index, a))
      }
  }

  result.sort { $0.0 < $1.0 }
  print(result.count)
  print(result.map { String($0.0) }.joined(separator: " "))
}

main()



// MARK: - 入力

// 参考:
// https://github.com/kntkymt/AtCoderBeginnersSelection_Swift

 func readInt() -> Int {
     return Int(Int64(readLine()!)!)
 }

func read2Ints(separator: String.Element = " ") -> (a: Int, b: Int) {
    let ints = readLine()!.split(separator: separator).map { Int(String($0))! }
    return (a: ints[0], b: ints[1])
}

func read3Ints(separator: String.Element = " ") -> (a: Int, b: Int, c: Int) {
    let ints = readLine()!.split(separator: separator).map { Int(String($0))! }
    return (a: ints[0], b: ints[1], c: ints[2])
}

func read4Ints(separator: String.Element = " ") -> (a: Int, b: Int, c: Int, d: Int) {
    let ints = readLine()!.split(separator: separator).map { Int(String($0))! }
    return (a: ints[0], b: ints[1], c: ints[2], d: ints[3])
}

func readInts(separator: String.Element = " ") -> [Int] {
    return readLine()!.split(separator: separator).map { Int(String($0))! }
}

func readIntsFromNoSpace() -> [Int] {
    return readLine()!.map { Int(String($0))! }
}

func readString() -> String {
    return readLine()!
}

func read2Strings(separator: String.Element = " ") -> (a: String, b: String) {
    let strings = readLine()!.split(separator: separator).map { String($0) }
    return (a: strings[0], b: strings[1])
}

func read3Strings(separator: String.Element = " ") -> (a: String, b: String, c: String) {
    let strings = readLine()!.split(separator: separator).map { String($0) }
    return (a: strings[0], b: strings[1], c: strings[2])
}

func read4Strings(separator: String.Element = " ") -> (a: String, b: String, c: String, d: String) {
    let strings = readLine()!.split(separator: separator).map { String($0) }
    return (a: strings[0], b: strings[1], c: strings[2], d: strings[3])
}

func readStrings(separator: String.Element = " ") -> [String] {
    return readLine()!.split(separator: separator).map { String($0) }
}

func readStringsFromNoSpace() -> [String] {
    return readLine()!.map { String($0) }
}

Submission Info

Compile Error

[0/1] Planning build
Building for production...
[0/2] Compiling _NumericsShims _NumericsShims.c
remark: Incremental compilation has been disabled: it is not compatible with whole module optimization
[2/3] Compiling RealModule AlgebraicField.swift
remark: Incremental compilation has been disabled: it is not compatible with whole module optimization
[4/5] Compiling OrderedCollections _HashTable+Bucket.swift
remark: Incremental compilation has been disabled: it is not compatible with whole module optimization
[6/7] Compiling DequeModule Compatibility.swift
remark: Incremental compilation has been disabled: it is not compatible with whole module optimization
[8/9] Compiling Algorithms AdjacentPairs.swift
remark: Incremental compilation has been disabled: it is not compatible with whole module optimization
[10/11] Compiling Collections Collections.swift
remark: Incremental compilation has been disabled: it is not compatible with whole module optimization
[12/13] Compiling Main main.swift
/judge/Sources/main.swift:24:22: warning: immutable value 'c' was never used; consider replacing with '_' or removing it
      let (index, a, c) = card
                     ^
                     _
[13/14] Linking Main
Build complete! (10.38s)

Judge Result