— Dark mode

Aalto Competitive Programming 2026 - wk1 - Mon

Backpacking

  • Start: 2026-08-31 16:20:00
  • End: 2026-08-31 17:50:00
Submission details
Task:Backpacking
Sender:aalto26am_022
Submission time:2026-08-31 16:50:35 +0300
Language:Scala
Status:READY
Result:
Test results
testverdicttime
#10.72 sdetails
#20.73 sdetails
#30.71 sdetails
#40.73 sdetails

Code

import scala.io.StdIn.readLine

object Backpacking{
  def main(): Unit = {
    val input = readLine()
    val A = input.charAt(0).toString.toInt
    val B = input.charAt(2).toString.toInt

    val O: Int = A + B

    println(O)
  }
}

Test details

Test 1

Verdict:

input
3 5
view save

correct output
8
view save

user output
(empty)

Error:
java.lang.NoSuchMethodException: Backpacking.main([Ljava.lang.String;)
	at java.base/java.lang.Class.getMethod(Class.java:2397)
	at scala.reflect.internal.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:66)
	at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:101)
	at scala.tools.nsc.CommonRunner$class.run(ObjectRunner.scala:22)
	at scala.tools.nsc.JarRunner$.run(MainGenericRunner.scala:13)
	at scala.tools.nsc.CommonRunner$class.runAndCatch(ObjectRunner.scala:29)
	at scala.tools.nsc.JarRunner$.runJar(MainGenericRunner.scala:25)
	at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:69)
	at scala.tools.nsc.MainGenericRunner.run$1(MainGenericRunner.scala:87)
	at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:98)
	at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)
	at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

Test 2

Verdict:

input
571335 750047
view save

correct output
1321382
view save

user output
(empty)

Error:
java.lang.NoSuchMethodException: Backpacking.main([Ljava.lang.String;)
	at java.base/java.lang.Class.getMethod(Class.java:2397)
	at scala.reflect.internal.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:66)
	at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:101)
	at scala.tools.nsc.CommonRunner$class.run(ObjectRunner.scala:22)
	at scala.tools.nsc.JarRunner$.run(MainGenericRunner.scala:13)
	at scala.tools.nsc.CommonRunner$class.runAndCatch(ObjectRunner.scala:29)
	at scala.tools.nsc.JarRunner$.runJar(MainGenericRunner.scala:25)
	at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:69)
	at scala.tools.nsc.MainGenericRunner.run$1(MainGenericRunner.scala:87)
	at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:98)
	at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)
	at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

Test 3

Verdict:

input
744471 719178
view save

correct output
1463649
view save

user output
(empty)

Error:
java.lang.NoSuchMethodException: Backpacking.main([Ljava.lang.String;)
	at java.base/java.lang.Class.getMethod(Class.java:2397)
	at scala.reflect.internal.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:66)
	at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:101)
	at scala.tools.nsc.CommonRunner$class.run(ObjectRunner.scala:22)
	at scala.tools.nsc.JarRunner$.run(MainGenericRunner.scala:13)
	at scala.tools.nsc.CommonRunner$class.runAndCatch(ObjectRunner.scala:29)
	at scala.tools.nsc.JarRunner$.runJar(MainGenericRunner.scala:25)
	at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:69)
	at scala.tools.nsc.MainGenericRunner.run$1(MainGenericRunner.scala:87)
	at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:98)
	at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)
	at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

Test 4

Verdict:

input
308833 436123
view save

correct output
744956
view save

user output
(empty)

Error:
java.lang.NoSuchMethodException: Backpacking.main([Ljava.lang.String;)
	at java.base/java.lang.Class.getMethod(Class.java:2397)
	at scala.reflect.internal.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:66)
	at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:101)
	at scala.tools.nsc.CommonRunner$class.run(ObjectRunner.scala:22)
	at scala.tools.nsc.JarRunner$.run(MainGenericRunner.scala:13)
	at scala.tools.nsc.CommonRunner$class.runAndCatch(ObjectRunner.scala:29)
	at scala.tools.nsc.JarRunner$.runJar(MainGenericRunner.scala:25)
	at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:69)
	at scala.tools.nsc.MainGenericRunner.run$1(MainGenericRunner.scala:87)
	at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:98)
	at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)
	at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

Tasks

A BackpackingB Stone gameC Traffic jamD Babaza Game

Submissions (aalto26am_022)

2026-08-31 16:51:41 2026-08-31 16:50:35 2026-08-31 16:43:37