Draw a single, non-intersecting loop that passes through all circled cells. The loop must go straight through the cells with white circles, with a turn in at least one of the cells immediately before/after each white circle. The loop must make a turn in all the black circles, but must go straight in both cells immediately before/after each black circle.
Solution code: For each column from left to right, the number of vertical path segments (= number of bends divided by 2).
on 8. November 2019, 23:58 by Uhu
@Rollo: Eine Ziffer im LC ist falsch eingegeben, die Lösung stimmt
on 4. November 2019, 08:43 by lupo
Da steht ja WPC drin, wie schön :-)