Hello Codeforces!

The second round of the Kotlin Heroes series in 2021 was a great one! Thanks to the authors and all who participated! We are very happy to see new people among the winners. All the rounds are available to be used for practice here: Episode 1, Episode 2, Episode 3, Episode 4, Episode 5: ICPC Round, Episode 6 and Episode 7.

The “7” from “Kotlin Heroes: Episode 7” was the lucky number for this top three contestants:

1. Petr
2. tourist
3. Maksim1744

A Kotlin Heroes t-shirt and exclusive Kotlin stickers will be presented to:

1. Petr
2. tourist
3. Maksim1744
4. Tlatoani
5. Golovanov399
6. Bench0310
7. Potassium
8. eatmore
9. tabr
10. SYury
11. LeoPro
12. Ra16bit
13. Jatana
14. nuip
15. xiaowuc1
16. Fortin
17. pashka
18. Geothermal
19. timmyfeng
20. senjougaharin
21. PurpleCrayon
22. TadijaSebez
23. natsugiri
24. uwi
25. Spheniscine
26. firi.
27. ngfam
28. TripleM5da
29. receed
30. MagentaCobra
31. WiwiHo
32. galen_colin
33. darkkcyan
34. Heart_Blue
35. DANDROZAVR
36. JettyOller
37. Kude
38. thenymphsofdelphi
39. SecondThread
40. qpwoeirut
41. Andreasyan
42. taran_1407
43. Moririn2528
44. insert_cool_handle
45. Sugar_fan
46. Dart-Xeyter
47. clyring
48. abc864197532
49. Skypiea
50. golikovnik

These participants also won branded t-shirts:

1. post
2. tongtongac
3. Roll_Num_56
4. jakao
5. Dmitry07
6. MarekSuchanek
7. Meliodas
8. litesam
9. Reeman
10. sashamc
11. eanacra
12. gustason
13. zuevmaxim
14. kadhonn
15. dayanruben
16. zubra.bubra
17. I_love_Avicii
18. bsav157
19. EgorkA_82
20. ZergTricky
21. rohitkumar0510
22. a1000
23. blakelist
24. fuad720
25. Tarun_19
26. vividsky
27. toilavu
28. codeash14
29. TheIceKing
30. stlouee
31. Neitex
32. pkpawan
33. GkG
34. denis2010
35. ramint
36. NooB_NO_1
37. ivanilos
38. ved_07
39. justaperson.
40. janicekartika
41. somerandomaltacc3034
42. solvemproblr
43. sigrlinn
44. godavari9823
45. vladas88
46. HanaYukii
47. alien_hun
48. HeNeos
49. nhanquyentran1
50. leekc

We will contact the winners soon to coordinate the delivery of your prizes!

For those who would like to get to know Kotlin better, we invite you to take a look at basic Kotlin, solve Koans in the free course from JetBrains Educational Products, visit Kotlin Playground, check out the tutorial, and these videos on competitive programming in Kotlin.

We wish you all the best and hope you enjoy coding with Kotlin!