diff -r 8aaf187d25f0 -r e45d2890749d pre_testing1/collatz.scala
--- a/pre_testing1/collatz.scala	Mon Nov 09 17:49:12 2020 +0000
+++ b/pre_testing1/collatz.scala	Sat Nov 14 00:40:47 2020 +0000
@@ -21,7 +21,6 @@
 //collatz_max(10000000)
 //collatz_max(100000000)
 
-
 /* some test cases
 val bnds = List(10, 100, 1000, 10000, 100000, 1000000)
 
@@ -43,7 +42,7 @@
 
 
 //for (i <- 130 to 10000) println(s"$i: ${last_odd(i)}")
-for (i <- 1 to 100) println(s"$i: ${collatz(i)}")
+//for (i <- 1 to 100) println(s"$i: ${collatz(i)}")
 
 }