| Challenge #218 Making numbers palindromic](/r/dailyprogrammer/comments/38yy9s/20150608_challenge_218_easy_making_numbers/) | Challenge #218 Generating Polyominoes](/r/dailyprogrammer/comments/398mtv/20150610_challenge_218_intermediate_generating/) | Challenge #218 Elevator Scheduling](/r/dailyprogrammer/comments/39ixxi/20150612_challenge_218_hard_elevator_scheduling/) | **-** | | Challenge #220 Mangling sentences](/r/dailyprogrammer/comments/3aqvjn/20150622_challenge_220_easy_mangling_sentences/) | Challenge #220 It's Go time!](/r/dailyprogrammer/comments/3axjac/20150624_challenge_220_intermediate_its_go_time/) | Challenge #220 Substitution Cryptanalysis](/r/dailyprogrammer/comments/3b668g/20150626_challenge_220_hard_substitution/) | **-** | | Challenge #221 Word snake](/r/dailyprogrammer/comments/3bi5na/20150629_challenge_221_easy_word_snake/) | Challenge #221 Unravelling a word snake](/r/dailyprogrammer/comments/3bqq7p/20150701_challenge_221_intermediate_unravelling_a/) | Challenge #221 Poetry in a haystack](/r/dailyprogrammer/comments/3bzipa/20150703_challenge_221_hard_poetry_in_a_haystack/) | **-** |
| Challenge #222 Balancing Words](/r/dailyprogrammer/comments/3c9a9h/20150706_challenge_222_easy_balancing_words/) | Challenge #222 Simple Stream Cipher](/r/dailyprogrammer/comments/3chvxy/20150708_challenge_222_intermediate_simple_stream/) | Challenge #222 Customer Unit Delivery Scheduling](/r/dailyprogrammer/comments/3cqxuh/20150710_challenge_222_hard_customer_unit/) | **-** | | Challenge #223 Garland words](/r/dailyprogrammer/comments/3d4fwj/20150713_challenge_223_easy_garland_words/) | Challenge #223 Eel of Fortune](/r/dailyprogrammer/comments/3ddpms/20150715_challenge_223_intermediate_eel_of_fortune/) | Challenge #223 The Heighway dragon fractal](/r/dailyprogrammer/comments/3dl9wr/20150717_challenge_223_hard_the_heighway_dragon/) | **-** | | Challenge #224 Shuffling a List](/r/dailyprogrammer/comments/3e0hmh/20150720_challenge_224_easy_shuffling_a_list/) | Challenge #224 Detecting Four Sided Figures](/r/dailyprogrammer/comments/3e5b0o/20150722_challenge_224_intermediate_detecting/) | Challenge #224 Langford strings](/r/dailyprogrammer/comments/3efbfh/20150724_challenge_224_hard_langford_strings/) | **-** | | Challenge #225 De-columnizing](/r/dailyprogrammer/comments/3esrkm/20150727_challenge_225_easyintermediate/) | Challenge #225 Estimating pi from images of circles](/r/dailyprogrammer/comments/3f0hzk/20150729_challenge_225_intermediate_estimating_pi/) | Challenge #225 Diagonal Maze]() | **-** | I lied a bit, these are actually in **reverse** chronological order, to make it less annoying to use on mobile devices.Įasy | Intermediate | Hard | Weekly/Bonus