Current status:
- 0. has_close_elements
- 1. separate_paren_groups
- 2. truncate
- 3. below_zero
- 4. mean_absolute_derivation
- 5. intersperse
- 6. parse_nested_parens
- 7. filter_by_substring
- 8. sum_product
- 9. rolling_max
- 10. is_palindrome
- 11. string_xor
- 12. longest
- 13. greatest_common_divisor
- 14. all_prefixes
- 15. string_sequence - complex strings
- 16. count_distinct_characters
- 17. parse_music - complex strings
- 18. how_many_times - complex strings
- 19. sort_numbers - complex strings
- 20. find_closest_elements
- 21. rescale_to_unit
- 22. filter_integers - ill-typed
- 23. strlen
- 24. largest_divisor
- 25. factorize
- 26. remove_duplicates
- 27. flip_case
- 28. concatenate
- 29. filter_by_prefix
- 30. get_positive
- 31. is_prime
- 32. poly
- 33. sort_third
- 34. unique
- 35. max_element
- 36. fizz_buzz
- 37. sort_even - sorting
- 38. encode_cyclic
- 39.
prime_fib-- unbounded loop, probably impossible - 40. triples_sum_to_zero
- 41. car_race_collision
- 42. incr_list
- 43. pairs_sum_to_zero
- 44. change_base
- 45. triangle_area
- 46. fib4
- 47. median
- 48. is_palindrome
- 49. modp
- 50. encode_shift
- 51. remove_vowels
- 52. below_threshold
- 53. add
- 54. same_chars
- 55. fib
- 56. correct_bracketing
- 57. monotonic
- 58. common
- 59. largest_prime_factor
- 60. sum_to_n
- 61. correct_bracketing
- 62. derivative
- 63. fibfib
- 64. vowels_count
- 65. circular_shift
- 66. digitSum
- 67. fruit_distribution - complex strings, possibly doable
- 68. pluck
- 69. search
- 70. strange_sort_list
- 71.
triangle_area-- requires real square root - 72. will_it_fly
- 73. smallest_change
- 74. total_match
- 75. is_multiply_prime
- 76. is_simple_power
- 77. iscube
- 78. hex_key
- 79. decimal_to_binary
- 80. is_happy
- 81. numerical_letter_grade
- 82. prime_length
- 83. starts_one_ends
- 84. solve
- 85. add
- 86. anti_shuffle - complex strings
- 87. get_row - sorting
- 88. sort_array - sorting
- 89. encrypt
- 90. next_smallest - nullable
- 91. is_bored - complex strings
- 92. any_int
- 93. encode
- 94. skjkasdkd
- 95. check_dict_case
- 96. count_up_to
- 97. multiply
- 98. count_upper
- 99. closest_integer - complex strings
- 100. make_a_pile
- 101. words_string - complex strings
- 102. choose_num
- 103. rounded_avg
- 104. unique_digits - sorting
- 105. by_length - sorting
- 106. f
- 107. even_odd_palindrome
- 108. count_nums
- 109. move_one_ball
- 110. exchange
- 111. histogram
- 112. reverse_delete
- 113. odd_count
- 114. minSubArraySum
- 115. max_fill
- 116. sort_array - sorting
- 117. select_words - complex strings
- 118. get_closest_vowel
- 119. match_parens
- 120. maximum - sorting
- 121. solution - sum
- 122. add_elements
- 123. get_odd_collatz - sorting
- 124. valid_date
- 125. split_words - complex strings
- 126. is_sorted
- 127. intersection
- 128. prod_signs
- 129. minPath
- 130. tri
- 131. digits
- 132. is_nested
- 133. sum_squares
- 134. check_if_last_char_is_a_letter
- 135. can_arrange
- 136. largest_smallest_integers
- 137. compare_one - ill-typed
- 138. is_equal_to_sum_even
- 139. special_factorial
- 140. fix_spaces - complex strings
- 141. file_name_check
- 142. sum_squares
- 143. words_in_sentence - complex strings
- 144. simplify
- 145. order_by_points - sorting
- 146. specialFilter
- 147. get_max_triples
- 148. bf
- 149. sorted_list_sum
- 150. x_or_y
- 151. double_the_difference
- 152. compare
- 153. Strongest_Extension
- 154. cycpattern_check
- 155. even_odd_count
- 156. int_to_mini_roman
- 157. right_angle_triangle
- 158. find_max
- 159. eat
- 160. do_algebra - complex strings
- 161. solve
- 162. string_to_md5 - needs hash
- 163. generate_integers