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     1   | 
     1   | 
     2 import C2._  | 
         | 
     3   | 
     2   | 
     4 val urban_list1 = List("a", "b", "b", "c", "d") | 
     3 def urbanmain() = { | 
     5 val urban_list2 = List("d", "b", "d", "b", "d") | 
     4   import C2._  | 
     6   | 
     5   | 
     7 assert(overlap(urban_list1, urban_list2) == 0.5384615384615384)  | 
     6   val urban_list1 = List("a", "b", "b", "c", "d") | 
         | 
     7   val urban_list2 = List("d", "b", "d", "b", "d") | 
     8   | 
     8   | 
     9 assert(overlap(urban_list1, urban_list1) == 1.0)  | 
     9   assert(overlap(urban_list1, urban_list2) == 0.5384615384615384)  | 
    10   | 
    10   assert(overlap(urban_list1, urban_list1) == 1.0)  | 
    11 assert(overlap(urban_list2, urban_list2) == 1.0)  | 
    11   assert(overlap(urban_list2, urban_list2) == 1.0)  | 
         | 
    12 }  |