Submission #74812217

Source Code Expand

@preconcurrency import Foundation
import Collections
//import Algorithms
import AcFoundation
import AtCoder
//import IOUtil
import Convenience
import AcCollections

func main() {
    
    let N: Int = .stdin
    let res: [[Int]] = .stdin(rows: N, columns: 2)
        .sorted(by: {
            $0[1] < $1[1]
        })
    
    var time = -1
    var ans = 0
    for re in res {
        
        if re[0] >= time {
            ans += 1
            time = re[1]
        }
    }
    
    print(ans)
}

main()

Submission Info

Submission Time
Task D - Meeting Room Reservation
User aoenginyaa
Language Swift 6.2
Score 400
Code Size 536 Byte
Status AC
Exec Time 73 ms
Memory 36700 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 400 / 400
Status
AC × 3
AC × 76
Set Name Test Cases
Sample sample01.txt, sample02.txt, sample03.txt
All sample01.txt, sample02.txt, sample03.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in40.txt, in41.txt, in42.txt, in43.txt, in44.txt, in45.txt, in46.txt, in47.txt, in48.txt, in49.txt, in50.txt, in51.txt, in52.txt, in53.txt, in54.txt, in55.txt, in56.txt, in57.txt, in58.txt, in59.txt, in60.txt, in61.txt, in62.txt, in63.txt, in64.txt, in65.txt, in66.txt, in67.txt, in68.txt, in69.txt, in70.txt, in71.txt, in72.txt, in73.txt
Case Name Status Exec Time Memory
in01.txt AC 29 ms 20740 KiB
in02.txt AC 9 ms 21176 KiB
in03.txt AC 9 ms 20764 KiB
in04.txt AC 8 ms 21432 KiB
in05.txt AC 8 ms 21368 KiB
in06.txt AC 68 ms 36308 KiB
in07.txt AC 72 ms 36664 KiB
in08.txt AC 68 ms 36260 KiB
in09.txt AC 72 ms 36468 KiB
in10.txt AC 9 ms 21020 KiB
in11.txt AC 70 ms 36420 KiB
in12.txt AC 61 ms 36332 KiB
in13.txt AC 72 ms 36456 KiB
in14.txt AC 72 ms 36232 KiB
in15.txt AC 72 ms 36492 KiB
in16.txt AC 37 ms 35876 KiB
in17.txt AC 69 ms 36488 KiB
in18.txt AC 73 ms 36644 KiB
in19.txt AC 72 ms 36652 KiB
in20.txt AC 68 ms 36300 KiB
in21.txt AC 37 ms 35840 KiB
in22.txt AC 37 ms 35524 KiB
in23.txt AC 38 ms 35856 KiB
in24.txt AC 43 ms 36640 KiB
in25.txt AC 61 ms 36472 KiB
in26.txt AC 41 ms 35832 KiB
in27.txt AC 48 ms 36648 KiB
in28.txt AC 8 ms 21372 KiB
in29.txt AC 8 ms 21200 KiB
in30.txt AC 8 ms 21116 KiB
in31.txt AC 8 ms 20904 KiB
in32.txt AC 8 ms 21196 KiB
in33.txt AC 8 ms 20864 KiB
in34.txt AC 8 ms 20768 KiB
in35.txt AC 9 ms 21320 KiB
in36.txt AC 38 ms 35464 KiB
in37.txt AC 22 ms 27636 KiB
in38.txt AC 8 ms 20672 KiB
in39.txt AC 8 ms 20940 KiB
in40.txt AC 8 ms 21012 KiB
in41.txt AC 56 ms 36456 KiB
in42.txt AC 63 ms 36648 KiB
in43.txt AC 9 ms 21096 KiB
in44.txt AC 8 ms 21196 KiB
in45.txt AC 8 ms 21196 KiB
in46.txt AC 37 ms 35608 KiB
in47.txt AC 38 ms 35660 KiB
in48.txt AC 72 ms 36476 KiB
in49.txt AC 9 ms 20704 KiB
in50.txt AC 67 ms 36232 KiB
in51.txt AC 69 ms 36700 KiB
in52.txt AC 72 ms 36468 KiB
in53.txt AC 38 ms 35456 KiB
in54.txt AC 41 ms 35604 KiB
in55.txt AC 71 ms 36632 KiB
in56.txt AC 69 ms 36476 KiB
in57.txt AC 72 ms 36308 KiB
in58.txt AC 69 ms 36412 KiB
in59.txt AC 70 ms 36488 KiB
in60.txt AC 9 ms 21184 KiB
in61.txt AC 8 ms 21404 KiB
in62.txt AC 8 ms 20876 KiB
in63.txt AC 8 ms 20656 KiB
in64.txt AC 8 ms 20652 KiB
in65.txt AC 8 ms 20948 KiB
in66.txt AC 7 ms 20660 KiB
in67.txt AC 8 ms 21004 KiB
in68.txt AC 38 ms 35480 KiB
in69.txt AC 9 ms 21072 KiB
in70.txt AC 8 ms 21388 KiB
in71.txt AC 8 ms 21024 KiB
in72.txt AC 8 ms 20648 KiB
in73.txt AC 44 ms 36632 KiB
sample01.txt AC 9 ms 20676 KiB
sample02.txt AC 8 ms 20808 KiB
sample03.txt AC 8 ms 21000 KiB