- 1 watermelon
- 2 way_too_long_words
- 3 beautiful_year
- 4 team
- 5 theatre_square
- 6 next_round
- 7 domino_piling
- 8 bit++
- 9 divisibility_problem
- 11 twins
- 10 dead_pixel
- 12 swap_sort
- 13 bad_prices
- 14 skier
- 15 hyperset
- 16 chat_order
- 17 bender_square
- 18 cyclic_components
- 19 fast_search
- 20 optimal_subsequences
- 21 platforms_jumping
- 22 ropes
- 23 string_game
- 24 military_problem
- Easy (A): 10
- Medium: 13
- Hard: 0