1 //def myassert(cond : => Boolean) = {

     2 //  try {

     3 //    assert(cond)

     4 //  } catch { 

     5 //    case _ : Throwable => System.exit(1)

     6 //  }

     7 //}

     8 

     9 assert(CW6a.collatz_max(10) == (19, 9))

    10 assert(CW6a.collatz_max(100) == (118, 97))

    11 assert(CW6a.collatz_max(1000) == (178, 871))

    12 assert(CW6a.collatz_max(10000) == (261, 6171))

    13 assert(CW6a.collatz_max(100000) == (350, 77031))

    14 assert(CW6a.collatz_max(1000000) == (524, 837799))

    15 assert(CW6a.collatz_max(2) == (1, 2))

    16 assert(CW6a.collatz_max(77000) == (339, 52527))