1 import C1._

     1 def urbanmain() = {

     2 

     2   import C1._

     3 assert(collatz_max(10) == (19, 9))

     3  

     4 assert(collatz_max(100) == (118, 97))

     4   assert(collatz_max(10) == (19, 9))

     5 assert(collatz_max(1000) == (178, 871))

     5   assert(collatz_max(100) == (118, 97))

     6 assert(collatz_max(10000) == (261, 6171))

     6   assert(collatz_max(1000) == (178, 871))

     7 assert(collatz_max(100000) == (350, 77031))

     7   assert(collatz_max(10000) == (261, 6171))

     8 assert(collatz_max(1000000) == (524, 837799))

     8   assert(collatz_max(100000) == (350, 77031))

     9 assert(collatz_max(2) == (1, 2))

     9   assert(collatz_max(1000000) == (524, 837799))

    10 assert(collatz_max(77000) == (339, 52527))

    10   assert(collatz_max(2) == (1, 2))

    11   assert(collatz_max(77000) == (339, 52527))

    12 }