CSES - Aalto Competitive Programming 2026 - wk1 - Wed

Submission details
Task:	LumberUolevi
Sender:	aalto26aw_003
Submission time:	2026-09-02 17:11:06 +0300
Language:	Scala
Status:	READY
Result:	WRONG ANSWER

Test results
test	verdict	time
#1	ACCEPTED	0.98 s	details
#2	WRONG ANSWER	0.99 s	details
#3	WRONG ANSWER	0.96 s	details
#4	WRONG ANSWER	0.98 s	details
#5	TIME LIMIT EXCEEDED	--	details
#6	WRONG ANSWER	0.99 s	details
#7	ACCEPTED	0.98 s	details
#8	ACCEPTED	1.00 s	details
#9	ACCEPTED	0.99 s	details
#10	WRONG ANSWER	0.97 s	details
#11	ACCEPTED	0.98 s	details
#12	WRONG ANSWER	0.99 s	details
#13	WRONG ANSWER	0.98 s	details
#14	ACCEPTED	0.98 s	details
#15	ACCEPTED	0.97 s	details
#16	TIME LIMIT EXCEEDED	--	details
#17	WRONG ANSWER	0.99 s	details
#18	ACCEPTED	0.99 s	details
#19	WRONG ANSWER	0.97 s	details
#20	WRONG ANSWER	0.99 s	details
#21	WRONG ANSWER	0.99 s	details
#22	WRONG ANSWER	1.00 s	details
#23	WRONG ANSWER	0.98 s	details
#24	WRONG ANSWER	0.99 s	details
#25	ACCEPTED	0.99 s	details
#26	WRONG ANSWER	0.97 s	details
#27	ACCEPTED	0.97 s	details
#28	ACCEPTED	0.97 s	details
#29	ACCEPTED	0.97 s	details
#30	ACCEPTED	1.00 s	details
#31	TIME LIMIT EXCEEDED	--	details
#32	TIME LIMIT EXCEEDED	--	details
#33	ACCEPTED	0.99 s	details
#34	TIME LIMIT EXCEEDED	--	details
#35	TIME LIMIT EXCEEDED	--	details
#36	ACCEPTED	0.99 s	details
#37	TIME LIMIT EXCEEDED	--	details
#38	ACCEPTED	1.00 s	details
#39	TIME LIMIT EXCEEDED	--	details
#40	ACCEPTED	0.99 s	details
#41	TIME LIMIT EXCEEDED	--	details
#42	TIME LIMIT EXCEEDED	--	details
#43	TIME LIMIT EXCEEDED	--	details
#44	TIME LIMIT EXCEEDED	--	details
#45	TIME LIMIT EXCEEDED	--	details
#46	TIME LIMIT EXCEEDED	--	details
#47	TIME LIMIT EXCEEDED	--	details
#48	TIME LIMIT EXCEEDED	--	details
#49	TIME LIMIT EXCEEDED	--	details
#50	TIME LIMIT EXCEEDED	--	details
#51	TIME LIMIT EXCEEDED	--	details
#52	TIME LIMIT EXCEEDED	--	details
#53	TIME LIMIT EXCEEDED	--	details
#54	TIME LIMIT EXCEEDED	--	details
#55	TIME LIMIT EXCEEDED	--	details
#56	TIME LIMIT EXCEEDED	--	details
#57	TIME LIMIT EXCEEDED	--	details
#58	TIME LIMIT EXCEEDED	--	details
#59	TIME LIMIT EXCEEDED	--	details
#60	TIME LIMIT EXCEEDED	--	details
#61	TIME LIMIT EXCEEDED	--	details
#62	TIME LIMIT EXCEEDED	--	details
#63	TIME LIMIT EXCEEDED	--	details

Code

import scala.io.StdIn.readLine

object LumberUolevi{
  def main(args: Array[String]): Unit = {
    val Array(a,b) = readLine.split(" ").map(_.toInt)

    var trees: List[Int] = List.range(1, a + 1)
    var cutTrees: List[Int] = List()
    var repeats: Int = 0

    if(a == b) {
      println(trees.mkString(" "))
    } else {
      if (trees.size % 2 != 0){
        cutTrees = cutTrees :+ trees.last
        trees = trees.dropRight(1)
        repeats = (b-1)/2
      }
      else {
        trees = trees.dropRight(1)
        repeats = b/2
      }

      var i = 0
      while (i < repeats && trees.length > 1){
        i += 1
        cutTrees = cutTrees :+ trees.last
        cutTrees = cutTrees :+ trees.head

        trees = trees.dropRight(1)
        trees = trees.drop(1)
      }

      println(cutTrees.mkString(" "))
    }
  }
}

Test details

Test 1

Verdict: ACCEPTED

input
`1 1` view save

correct output
`1` view save

user output
`1` view save

Test 2

Verdict: WRONG ANSWER

input
`2 1` view save

correct output
`2` view save

user output
(empty)

Test 3

Verdict: WRONG ANSWER

input
`2 1` view save

correct output
`2` view save

user output
(empty)

Test 4

Verdict: WRONG ANSWER

input
`3 2` view save

correct output
`1 2` view save

user output
`3` view save

Test 5

Verdict: TIME LIMIT EXCEEDED

input
`3 3` view save

correct output
`1 2 3` view save

user output
(empty)

Test 6

Verdict: WRONG ANSWER

input
`4 1` view save

correct output
`4` view save

user output
(empty)

Test 7

Verdict: ACCEPTED

input
`4 4` view save

correct output
`1 2 3 4` view save

user output
`1 2 3 4` view save

Test 8

Verdict: ACCEPTED

input
`5 1` view save

correct output
`5` view save

user output
`5` view save

Test 9

Verdict: ACCEPTED

input
`5 5` view save

correct output
`1 2 3 4 5` view save

user output
`1 2 3 4 5` view save

Test 10

Verdict: WRONG ANSWER

input
`6 1` view save

correct output
`6` view save

user output
(empty)

Test 11

Verdict: ACCEPTED

input
`10 6` view save

correct output
`1 2 3 5 9 10` view save

user output
`9 1 8 2 7 3` view save

Test 12

Verdict: WRONG ANSWER

input
`10 5` view save

correct output
`1 2 3 4 10` view save

user output
`9 1 8 2` view save

Test 13

Verdict: WRONG ANSWER

input
`10 5` view save

correct output
`1 2 3 4 10` view save

user output
`9 1 8 2` view save

Test 14

Verdict: ACCEPTED

input
`10 6` view save

correct output
`1 2 3 5 9 10` view save

user output
`9 1 8 2 7 3` view save

Test 15

Verdict: ACCEPTED

input
`10 10` view save

correct output
`1 2 3 4 5 6 7 8 9 10` view save

user output
`1 2 3 4 5 6 7 8 9 10` view save

Test 16

Verdict: TIME LIMIT EXCEEDED

input
`11 3` view save

correct output
`1 2 8` view save

user output
(empty)

Test 17

Verdict: WRONG ANSWER

input
`11 10` view save

correct output
`1 2 3 4 5 6 7 8 9 10` view save

user output
`11 10 1 9 2 8 3 7 4` view save

Test 18

Verdict: ACCEPTED

input
`11 1` view save

correct output
`11` view save

user output
`11` view save

Test 19

Verdict: WRONG ANSWER

input
`12 11` view save

correct output
`1 2 3 4 5 7 8 9 10 11 12` view save

user output
`11 1 10 2 9 3 8 4 7 5` view save

Test 20

Verdict: WRONG ANSWER

input
`12 1` view save

correct output
`12` view save

user output
(empty)

Test 21

Verdict: WRONG ANSWER

input
`20 11` view save

correct output
`1 2 3 4 5 6 7 8 9 15 20` view save

user output
`19 1 18 2 17 3 16 4 15 5` view save

Test 22

Verdict: WRONG ANSWER

input
`20 9` view save

correct output
`1 2 3 4 5 6 7 12 20` view save

user output
`19 1 18 2 17 3 16 4` view save

Test 23

Verdict: WRONG ANSWER

input
`21 10` view save

correct output
`1 2 3 4 5 6 7 8 9 18` view save

user output
`21 20 1 19 2 18 3 17 4` view save

Test 24

Verdict: WRONG ANSWER

input
`22 13` view save

correct output
`1 2 3 4 5 6 7 8 9 10 12 21 22` view save

user output
`21 1 20 2 19 3 18 4 17 5 16 6` view save

Test 25

Verdict: ACCEPTED

input
`20 20` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

Test 26

Verdict: WRONG ANSWER

input
`20 5` view save

correct output
`1 2 3 4 10` view save

user output
`19 1 18 2` view save

Test 27

Verdict: ACCEPTED

input
`23 21` view save

correct output
`1 2 3 4 5 6 7 8 9 10 13 14 15 ...` view save

user output
`23 22 1 21 2 20 3 19 4 18 5 17...` view save

Test 28

Verdict: ACCEPTED

input
`24 2` view save

correct output
`1 23` view save

user output
`23 1` view save

Test 29

Verdict: ACCEPTED

input
`20 18` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
`19 1 18 2 17 3 16 4 15 5 14 6 ...` view save

Test 30

Verdict: ACCEPTED

input
`25 1` view save

correct output
`25` view save

user output
`25` view save

Test 31

Verdict: TIME LIMIT EXCEEDED

input
`123 68` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 32

Verdict: TIME LIMIT EXCEEDED

input
`201 84` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 33

Verdict: ACCEPTED

input
`200 88` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
`199 1 198 2 197 3 196 4 195 5 ...` view save

Test 34

Verdict: TIME LIMIT EXCEEDED

input
`202 112` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 35

Verdict: TIME LIMIT EXCEEDED

input
`200 194` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 36

Verdict: ACCEPTED

input
`204 46` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
`203 1 202 2 201 3 200 4 199 5 ...` view save

Test 37

Verdict: TIME LIMIT EXCEEDED

input
`205 184` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 38

Verdict: ACCEPTED

input
`200 16` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
`199 1 198 2 197 3 196 4 195 5 ...` view save

Test 39

Verdict: TIME LIMIT EXCEEDED

input
`207 181` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 40

Verdict: ACCEPTED

input
`201 3` view save

correct output
`1 2 198` view save

user output
`201 200 1` view save

Test 41

Verdict: TIME LIMIT EXCEEDED

input
`1123 617` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 42

Verdict: TIME LIMIT EXCEEDED

input
`2201 918` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 43

Verdict: TIME LIMIT EXCEEDED

input
`3200 1396` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 44

Verdict: TIME LIMIT EXCEEDED

input
`2202 1213` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 45

Verdict: TIME LIMIT EXCEEDED

input
`1200 1161` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 46

Verdict: TIME LIMIT EXCEEDED

input
`5204 1156` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 47

Verdict: TIME LIMIT EXCEEDED

input
`6205 5541` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 48

Verdict: TIME LIMIT EXCEEDED

input
`3200 245` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 49

Verdict: TIME LIMIT EXCEEDED

input
`7207 6295` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 50

Verdict: TIME LIMIT EXCEEDED

input
`9201 96` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 51

Verdict: TIME LIMIT EXCEEDED

input
`51123 28058` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 52

Verdict: TIME LIMIT EXCEEDED

input
`32201 13429` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 53

Verdict: TIME LIMIT EXCEEDED

input
`23200 10116` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 54

Verdict: TIME LIMIT EXCEEDED

input
`12202 6721` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 55

Verdict: TIME LIMIT EXCEEDED

input
`21200 20502` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 56

Verdict: TIME LIMIT EXCEEDED

input
`35204 7816` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 57

Verdict: TIME LIMIT EXCEEDED

input
`46205 41255` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 58

Verdict: TIME LIMIT EXCEEDED

input
`63200 4823` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 59

Verdict: TIME LIMIT EXCEEDED

input
`87207 76170` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 60

Verdict: TIME LIMIT EXCEEDED

input
`99201 1030` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 61

Verdict: TIME LIMIT EXCEEDED

input
`100000 54883` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 62

Verdict: TIME LIMIT EXCEEDED

input
`100000 41703` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Test 63

Verdict: TIME LIMIT EXCEEDED

input
`100000 43601` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Aalto Competitive Programming 2026 - wk1 - Wed

LumberUolevi

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Test 22

Test 23

Test 24

Test 25

Test 26

Test 27

Test 28

Test 29

Test 30

Test 31

Test 32

Test 33

Test 34

Test 35

Test 36

Test 37

Test 38

Test 39

Test 40

Test 41

Test 42

Test 43

Test 44

Test 45

Test 46

Test 47

Test 48

Test 49

Test 50

Test 51

Test 52

Test 53

Test 54

Test 55

Test 56

Test 57

Test 58

Test 59

Test 60

Test 61

Test 62

Test 63

Tasks

Submissions (aalto26aw_003)