for part2 you could use `flatMap` to cut down code...

# advent-of-code

[holgerbrandl]

for part2 you could use flatMap to cut down code. And it would also fail (same as mine, but not in @karelpeeters solution) if there would be number duplicates in a row.

[andyb]

Again, I wanted to be able to handle duplicates & so solution is a bit wordy.

[andyb]

Having issues loading the input file as a resource, even if the file exists in a resources dir I don't seem to be able to load it. Sure I've done this before but can't see what I am missing

[stkent]

I'm using val input = File(Main::class.java.getResource("input.txt").file).readLines() if that helps

[karelpeeters]

For these challenges I think it's easier to just paste the input in source: val input = """ ... """.

[andyb]

Thanks @stkent, tried that but the call to getResource("input.txt") just returns null even if the file is in the src/main/resources or src/test/resources & these are configured in the IDEA project.

[holgerbrandl]

+1 for the triple quoted input. Simple and sufficient.

[andyb]

Are you guys using Kotlin 1.2? I'm still trying to fix the issue with reading my resource files and gone back to a project which uses it & worked in 1.1 but no longer works in 1.2. Very puzzled

[karelpeeters]

I'll try it, one minute.

[karelpeeters]

@stkent's line just works for me on a fresh IDEA 2017.3 Kotlin/JVM project.

[andyb]

I'll try a new project & see if that works. Very confused as I have been using that method to read files from the classpath for ages

[andyb]

That even fails in a new project. Get the same error which indicates that the resource can't be found.
Exception in thread "main" java.lang.IllegalStateException: Main::class.java.getResource("input.txt") must not be null
Too late to investiage further, will retry tomorrow

[karelpeeters]

Yikes, good luck anayway!