[Swift] 백준7568 덩치

import Foundation

let N = Int(readLine()!)!

var tuples = [(x: Int, y: Int)]()

for _ in 1...N {
    let xy = readLine()!.components(separatedBy: " ").map { Int($0)! }
    let x = xy[0]
    let y = xy[1]
    tuples.append((x, y))
}

var ranks = [Int]()
for tuple in tuples {
    let rank = tuples.filter { $0.x > tuple.x && $0.y > tuple.y }.count + 1
    ranks.append(rank)
}

for rank in ranks {
    if rank.hashValue == ranks.last?.hashValue {
        print(rank)
    } else {
        print(rank, terminator: " ")
    }
}

tuple에 데이터를 저장한뒤 비교해서 풀었다.