Portal solutions

Portal was solved using Java by 23 contestants.

3. download halyavin (S)
4. download wata (S, L)
15. download falagar (S, L)
28. download FedorTsarev (S, L)
33. download elizarov (S, L)
59. download pashka (S, L)
60. download slex (S, L)
75. download JediKnight (S, L)
84. download yariv (S, L)
85. download Jonick (S, L)
86. download KOTEHOK (S, L)
114. download Tsubosaka (S, L)
115. download PandaNoodles (S, L)
118. download Wolfje (S, L)
149. download ssancho (S)
228. download strategist333 (S, L)
235. download xiaobao (S, L)
238. download TaiTai (S, L)
245. download winger (S)
294. download humblefool (S)
304. download tsukuno (S)
577. download popo (S)
598. download aditsu (S)