Created
December 19, 2014 13:19
Rope.scala
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trait UnitTest { | |
def assert_equal(expected :Int, got :Int) { | |
expected==got match { | |
case true => | |
println("passed: " + expected) | |
case _ => | |
println("Assertion failed\nExpected: " + expected + "\nGot: " + got) | |
} | |
} | |
} | |
object Rope extends UnitTest { | |
def intranet(a :Int, b :Int, x :Int, y :Int) :Int = { | |
if ((a-x) * (b-y) > 0) { | |
return 0 | |
} else { | |
return 1 | |
} | |
} | |
def count(vec: Vector[(Int,Int)]) :Int = { | |
var counter :Int = 0 | |
for (i <- 0 until vec.length) { | |
for (j <- i+1 until vec.length) { | |
val a = vec(i) | |
val b = vec(j) | |
counter += intranet(a._1, a._2, b._1, b._2) | |
} | |
} | |
return counter | |
} | |
def data_to_vec(data :String) :Vector[(Int,Int)] = { | |
var vec = Vector((1,10), (5,5), (7,7)) | |
return vec | |
} | |
def main() { | |
assert_equal(0, intranet(1,1, 2,2)) | |
assert_equal(1, intranet(1,10, 5,5)) | |
assert_equal(1, intranet(1,10, 7,7)) | |
//var vec = data_to_vec("1 10\n5 5\n 7 7") | |
var vec = Vector((1,10), (5,5), (7,7)) | |
assert_equal(2, count(vec)) | |
vec = Vector((1,1), (2,2)) | |
assert_equal(0, count(vec)) | |
vec = Vector((1,9)) | |
assert_equal(0, count(vec)) | |
vec = Vector((5,3), (6,4)) | |
assert_equal(0, count(vec)) | |
vec = Vector((4,10), (6,2)) | |
assert_equal(1, count(vec)) | |
} | |
} | |
Rope.main() |
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