2016 Update

Task/Amicable-pairs/PureBasic/amicable-pairs.purebasic

@@ -0,0 +1,34 @@
+EnableExplicit
+
+Procedure.i SumProperDivisors(Number)
+  If Number < 2 : ProcedureReturn 0 : EndIf
+  Protected i, sum = 0
+  For i = 1 To Number / 2
+    If Number % i = 0
+      sum + i
+    EndIf
+  Next
+  ProcedureReturn sum
+EndProcedure
+
+Define n, f
+Define Dim sum(19999)
+
+If OpenConsole()
+  For n = 1 To 19999
+    sum(n) = SumProperDivisors(n)
+  Next
+  PrintN("The pairs of amicable numbers below 20,000 are : ")
+  PrintN("")
+  For n = 1 To 19998
+    f = sum(n)
+    If f <= n Or f < 1 Or f > 19999 : Continue : EndIf
+    If f = sum(n) And n = sum(f)
+      PrintN(RSet(Str(n),5) + " and " + RSet(Str(sum(n)), 5))
+    EndIf
+  Next
+  PrintN("")
+  PrintN("Press any key to close the console")
+  Repeat: Delay(10) : Until Inkey() <> ""
+  CloseConsole()
+EndIf