Mercurial Mercurial > hg > afl-material / annotate
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
progs/collatz2.scala
author cu
Thu, 28 Sep 2017 19:07:37 +0100
changeset 511 1af5ec39d006
parent 409 fb8ee3f58d19
permissions -rw-r--r--
c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
409
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff changeset 
     1
 
def collatz(n: BigInt) : Boolean = n match {
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff changeset 
     2
 
  case n if (n == 1) => true
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff changeset 
     3
 
  case n if (n % 2 == 0) => collatz(n / 2)
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff changeset 
     4
 
  case _ => collatz(3 * n + 1)
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff changeset 
     5
 
}
afl-material