Diamond Inheritance solutions

Diamond Inheritance was solved using Groovy by 3 contestants. Solution sizes: average 1862 bytes (shortest: 1236; longest: 2575).

190. download Loki... (S, L) (2325 B)
1623. download Petrp (S, L) (1236 B)
2515. download Isammoc (S) (1942 B)