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Results tagged with code-golf
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user 2960
Code-golf is a competition to solve a particular problem in the fewest bytes of source code.
1
vote
Jolly Jumper Sequence
Scala
A quick stab - there are probably improvements possible.
Easy: 77
def j(? :Int*)=(?tail,?).zipped.map(_-_).map(math.abs).sorted==(1 to?.size-1)
Hard: 124
val? =args.map(_.toInt)toSeq;print …
- 751
9
votes
Generate Pascal's triangle
Scala, 81 78 72 70 characters
81 chars: first attempt, shamelessly copied from the Python version :)
var x=Seq(1)
for(i<-1 to args(0).toInt){println(x)
x=(0+:x,x:+0).zipped.map(_+_)}
Run it as a s …
- 751
10
votes
Tips for golfing in Scala
Use infix syntax to remove the need for . characters. You don't need spaces unless adjacent items are both in alphanumeric or both in operator characters (see here), and not separated by reserved char …
- 751
10
votes
Tips for golfing in Scala
You can usually use map instead of foreach:
List("a","b","c") foreach println
can be replaced with
List("a","b","c") map println
The only difference is the return type (Unit vs List[Unit]), whic …
- 751
14
votes
Tips for golfing in Scala
The shortest way of repeating something is with Seq.fill.
1 to 10 map(_=>println("hi!")) // Wrong!
for(i<-1 to 10)println("hi!") // Wrong!
Seq.fill(10)(println("hi!")) // Right!
- 751
21
votes
Obfuscated Hello World
Scala, 39
Solutions like print("Qnuux)`x{um"map(_-9 toChar)) (35 chars) fall foul of rules 1 and 2 ("toChar" contains both "h" and "r"), which makes this a bit tough.
Finally came up with this:
pri …
- 751