README.md

Solutions to AtCoder problems

There are solutions for the following AtCoder problems:

AGC Class contests

1. AGC053B - Taking the middle (problem site)
2. AGC032A - Limited Insertion (problem site)
3. AGC019B - Reverse and Compare (problem site)
4. AGC004B - Colorful Slimes (problem site)
5. AGC004A - Divide a Cuboid (problem site)
6. AGC003C - BBuBBBlesort!(problem site)
7. AGC003B - Simplified mahjong(problem site)
8. AGC003A - Wanna go back home(problem site)
9. AGC002C - Knot Puzzle (problem site)
10. AGC002B - Box and Ball (problem site)
11. AGC002A - Range Product (problem site)
12. AGC001B - Mysterious Light (problem site)
13. AGC001A - BBQ Easy (problem site)

ARC Class contests

1. ARC134D - Concatenate Subsequences (problem site)
2. ARC118C - Coprime Set (problem site)
3. ARC118B - Village of M People (problem site)
4. ARC118A - Tax Included Price (problem site)
5. ARC105C - Camels and Bridge (problem site)
6. ARC103E - Tr/ee (problem site)
7. ARC103D - Robot Arms (problem site)
8. ARC103C - //// (problem site)
9. ARC102D - All Your Paths are Different Lengths (problem site)
10. ARC102C - Triangular Relationship (problem site)
11. ARC100D - Equal Cut (problem site)
12. ARC100C - Linear Approximation (problem site)
13. ARC098E - Range Minimum Queries (problem site)
14. ARC098D - Xor Sum 2 (problem site)
15. ARC098C - Attention (problem site)
16. ARC097D - Equals (problem site)
17. ARC097C - K-th Substring (problem site)
18. ARC096D - Static Sushi (problem site)
19. ARC096C - Half and Half (problem site)
20. ARC095D - Binomial Coefficients (problem site)
21. ARC095C - Many Medians (problem site)
22. ARC094E - Tozan and Gezan (problem site)
23. ARC094D - Worst Case (problem site)
24. ARC094C - Same Integers (problem site)
25. ARC093D - Grid Components (problem site)
26. ARC093C - Traveling Plan (problem site)
27. ARC092C - 2D Plane 2N Points (problem site)
28. ARC091D - Remainder Reminder (problem site)
29. ARC091C - Flip,Flip, and Flip...... (problem site)
30. ARC090D - People on a Line (problem site)
31. ARC090C - Candies (problem site)
32. ARC089D - Checker (problem site)
33. ARC089C - Traveling (problem site)
34. ARC088C - Multiple Gift (problem site)
35. ARC087C - Good Sequence (problem site)
36. ARC086D - Non-decreasing (problem site)
37. ARC086C - Not so Diverse (problem site)
38. ARC085D - ABS (problem site)
39. ARC085C - HSI (problem site)
40. ARC084C - Snuke Festival (problem site)
41. ARC083D - Restoring Road Network (problem site)
42. ARC083C - Sugar Water (problem site)
43. ARC082C - Together (problem site)
44. ARC081D - Coloring Dominoes (problem site)
45. ARC081C - Make a Rectangle (problem site)
46. ARC080C - 4-adjacent (problem site)
47. ARC079C - Cat Snuke and a Voyage (problem site)
48. ARC078C - Splitting Pile (problem site)
49. ARC077C - pushpush (problem site)
50. ARC076C - Reconciled? (problem site)
51. ARC075C - Bugged (problem site)
52. ARC074C - Chocolate Bar (problem site)
53. ARC073C - Sentou (problem site)
54. ARC072C - Sequence (problem site)
55. ABC071D - ### (problem site)
56. ARC071C - Dubious Document (problem site)
57. ARC070C - Go Home (problem site)
58. ABC069D - Menagerie (problem site)
59. ARC069C - Scc Puzzle (problem site)
60. ARC068D - Card Eater (problem site)
61. ARC068C - X: Yet Another Die Game (problem site)
62. ARC067D - Walk and Teleport (problem site)
63. ARC067C - Factors of Factorial (problem site)
64. ABC050D - Xor Sum (problem site)
65. ARC066C - Lining Up (problem site)
66. ARC065D - Connectivity (problem site)
67. ARC065C - Daydream (problem site)
68. ARC064D - An Ordinary Game (problem site)
69. ARC064C - Boxes and Candies (problem site)
70. ARC063D - An Invisible Hand (problem site)
71. ARC063C - 1D Reversi (problem site)
72. ARC062D - AtCoDeer and Rock-Paper (problem site)
73. ARC062C - AtCoDeer and Election Report (problem site)
74. ARC061D - Sunke's Coloring (problem site)
75. ARC061C - Many Formulas (problem site)
76. ARC060D - Digit Sum (problem site)
77. ARC060C - Tak and Cards (problem site)
78. ARC059D - Unbalanced (problem site)
79. ARC059C - Be Together (problem site)
80. ARC058D - Iroha and a Grid (problem site)
81. ARC058C - Iroha's Obsession (problem site)

ABC Class contests

1. ABC199C - IPFL (problem site)
2. ABC199B - Intersection (problem site)
3. ABC199A - Square Inequality (problem site)
4. ABC165F - LIS on Tree (problem site)
5. ABC154F - Many Many Paths (problem site)
6. ABC149E - Handshake (problem site)
7. ABC139F - Engines (problem site)
8. ABC139E - League (problem site)
9. ABC139D - ModSum (problem site)
10. ABC139C - Lower (problem site)
11. ABC139B - Power Socket (problem site)
12. ABC139A - Tenki (problem site)
13. ABC126F - XOR Matching (problem site)
14. ABC126E - 1 or 2 (problem site)
15. ABC126D - Even Relation (problem site)
16. ABC126C - Dice and Coin (problem site)
17. ABC126B - YYMM or MMYY (problem site)
18. ABC126A - Changing a Character (problem site)
19. ABC118D - Match Matching (problem site)
20. ABC103D - Islands War (problem site)
21. ABC103C - Modulo Summation (problem site)
22. ABC103B - String Rotation (problem site)
23. ABC103A - Task Scheduling Problem (problem site)
24. ABC102D - Equal Cut (problem site)
25. ABC102C - Linear Approximation (problem site)
26. ABC102B - Maximum Difference (problem site)
27. ABC102A - Multiple of 2 and N (problem site)
28. ABC099D - Good Grid (problem site)
29. ABC099C - Strange Bank (problem site)
30. ABC099B - Stone Monument (problem site)
31. ABC099A - ABD (problem site)
32. ABC098D - Xor Sum 2 (problem site)
33. ABC098C - Attention (problem site)
34. ABC098B - Cut and Count (problem site)
35. ABC098A - Add Sub Mul (problem site)
36. ABC097D - Equals (problem site)
37. ABC097C - K-th Substring (problem site)
38. ABC097B - Exponential (problem site)
39. ABC097A - Colorful Transceivers (problem site)
40. ABC096D - Five, Five Everywhere (problem site)
41. ABC096C - Grid Repainting 2 (problem site)
42. ABC096B - Maximum Sum (problem site)
43. ABC096A - Day of Takahashi (problem site)
44. ABC095D - Static Sushi (problem site)
45. ABC095C - Half and Half (problem site)
46. ABC095B - Bitter Alchemy (problem site)
47. ABC095A - Something on It (problem site)
48. ABC094D - Binomial Coefficients (problem site)
49. ABC094C - Many Medians (problem site)
50. ABC094B - Toll Gates (problem site)
51. ABC094A - Cats and Dogs (problem site)
52. ABC093D - Worst Case (problem site)
53. ABC093C - Same Integers (problem site)
54. ABC093B - Small and Large Integers (problem site)
55. ABC093A - abc of ABC (problem site)
56. ABC092D - Grid Components (problem site)
57. ABC092C - Traveling Plan (problem site)
58. ABC092B - Chocolate (problem site)
59. ABC092A - Traveling Budget (problem site)
60. ABC091C - 2D Plane 2N Points (problem site)
61. ABC091B - Two Colors Card Game (problem site)
62. ABC091A - Two Coins (problem site)
63. ABC090D - Remainder Reminder (problem site)
64. ABC090C - Flip,Flip, and Flip...... (problem site)
65. ABC090B - Palindromic Numbers (problem site)
66. ABC090A - Diagonal String (problem site)
67. ABC089D - Practical Skill Test (problem site)
68. ABC089C - March (problem site)
69. ABC089B - Hina Arare (problem site)
70. ABC089A - Grouping 2 (problem site)
71. ABC088D - Grid Repainting (problem site)
72. ABC088C - Takahashi's Information (problem site)
73. ABC088B - Card Game for Two (problem site)
74. ABC088A - Infinite Coins (problem site)
75. ABC087D - People on a Line (problem site)
76. ABC087C - Candies (problem site)
77. ABC087B - Coins (problem site)
78. ABC087A - Buying Sweets (problem site)
79. ABC086D - Checker (problem site)
80. ABC086C - Traveling (problem site)
81. ABC086B - 1 21 (problem site)
82. ABC086A - Product (problem site)
83. ABC085D - Katana Thrower (problem site)
84. ABC085C - Otoshidama (problem site)
85. ABC085B - Kagami Mochi (problem site)
86. ABC085A - Already 2018 (problem site)
87. ABC084D - 2017-like Number (problem site)
88. ABC084C - Special Trains (problem site)
89. ABC084B - Postal Code (problem site)
90. ABC084A - New Year (problem site)
91. ABC083C - Multiple Gift (problem site)
92. ABC083B - Some Sums (problem site)
93. ABC083A - Libra (problem site)
94. ABC082C - Good Sequence (problem site)
95. ABC082B - Two Anagrams (problem site)
96. ABC082A - Round Up the Maen (problem site)
97. ABC081D - Non-decreasing (problem site)
98. ABC081C - Not so Diverse (problem site)
99. ABC081B - Shift only (problem site)
100. ABC081A - Placing Marbles (problem site)
101. ABC080D - Recording (problem site)
102. ABC080C - Shopping Street (problem site)
103. ABC080B - Harshad Number (problem site)
104. ABC080A - Parking (problem site)
105. ABC079D - Wall (problem site)
106. ABC079C - Train Ticket (problem site)
107. ABC079B - Lucas Number (problem site)
108. ABC079A - Good Integer (problem site)
109. ABC078D - ABS (problem site)
110. ABC078C - HSI (problem site)
111. ABC078B - ISU (problem site)
112. ABC078A - HEX (problem site)
113. ABC077C - Snuke Festival (problem site)
114. ABC077B - Around Square (problem site)
115. ABC077A - Rotation (problem site)
116. ABC076C - Dubious Document 2 (problem site)
117. ABC076B - Addition and Multiplication (problem site)
118. ABC076A - Rating Goal (problem site)
119. ABC075C - Bridge (problem site)
120. ABC075B - Minesweeper (problem site)
121. ABC075A - One out of Three (problem site)
122. ABC074D - Restoring Road Network (problem site)
123. ABC074C - Sugar Water (problem site)
124. ABC074B - Collecting Balls (Easy Version) (problem site)
125. ABC074A - Bichrome Cells (problem site)
126. ABC073C - Write and Erase (problem site)
127. ABC073B - Theater (problem site)
128. ABC073A - September 9 (problem site)
129. ABC072C - Together (problem site)
130. ABC072B - OddString (problem site)
131. ABC072A - Sandglass2 (problem site)
132. ABC071D - Coloring Dominoes (problem site)
133. ABC071C - Make a Rectangle (problem site)
134. ABC071B - Not Found (problem site)
135. ABC071A - Meal Delivery (problem site)
136. ABC070C - Multiple Clocks (problem site)
137. ABC070B - Two Switches (problem site)
138. ABC070A - Palindromic Number (problem site)
139. ABC069C - 4-adjacent (problem site)
140. ABC069B - i18n (problem site)
141. ABC069A - K-City (problem site)
142. ABC068C - Cat Snuke and a Voyage (problem site)
143. ABC068B - Break Number (problem site)
144. ABC068A - ABCxxx (problem site)
145. ABC067C - Splitting Pile (problem site)
146. ABC067B - Snake Toy (problem site)
147. ABC067A - Sharing Cookies (problem site)
148. ABC066C - pushpush (problem site)
149. ABC066B - ss (problem site)
150. ABC066A - ringring (problem site)
151. ABC065C - Reconciled? (problem site)
152. ABC065B - Trained? (problem site)
153. ABC065A - Expired? (problem site)
154. ABC064C - Colorful Leaderboard (problem site)
155. ABC064B - Traveling AtCoDeer Problem (problem site)
156. ABC064A - RGB Cards (problem site)
157. ABC063C - Bugged (problem site)
158. ABC063B - Varied (problem site)
159. ABC063A - Restricted (problem site)
160. ABC062C - Chocolate Bar (problem site)
161. ABC062B - Picture Frame (problem site)
162. ABC062A - Grouping (problem site)
163. ABC061C - Big Array (problem site)
164. ABC061B - Counting Roads (problem site)
165. ABC061A - Between Two Integers (problem site)
166. ABC060C - Sentou (problem site)
167. ABC060B - Choose Integers (problem site)
168. ABC060A - Shiritori (problem site)
169. ABC059C - Sequence (problem site)
170. ABC059B - Comparison (problem site)
171. ABC059A - Three-letter acronym (problem site)
172. ABC058D - ### (problem site)
173. ABC058C - Dubious Document (problem site)
174. ABC058B - ∵∴∵ (problem site)
175. ABC058A - ι⊥l (problem site)
176. ABC057D - Maximum Average Sets (problem site)
177. ABC057C - Digits in Multiplication (problem site)
178. ABC057B - Checkpoints (problem site)
179. ABC057A - Remaining Time (problem site)
180. ABC056C - Go Home (problem site)
181. ABC056B - NarrowRectanglesEasy (problem site)
182. ABC056A - HonestOrDishonest (problem site)
183. ABC055D - Menagerie (problem site)
184. ABC055C - Scc Puzzle (problem site)
185. ABC055B - Training Camp (problem site)
186. ABC055A - Restaurant (problem site)
187. ABC054D - Mixing Experiment (problem site)
188. ABC054C - One-stroke Path (problem site)
189. ABC054B - Template Matching (problem site)
190. ABC054A - One Card Poker (problem site)
191. ABC053D - Card Eater (problem site)
192. ABC053C - X: Yet Another Die Game (problem site)
193. ABC053B - A to Z String (problem site)
194. ABC053A - ABC/ARC (problem site)
195. ABC052D - Walk and Teleport (problem site)
196. ABC052C - Factors of Factorial (problem site)
197. ABC052B - Increment Decrement (problem site)
198. ABC052A - Two Rectangles (problem site)
199. ABC051D - Candidates of No Shortest Paths (problem site)
200. ABC051C - Back and Forth (problem site)
201. ABC051B - Sum of Three Integers (problem site)
202. ABC051A - Haiku (problem site)
203. ABC050D - Xor Sum (problem site)
204. ABC050C - Lining Up (problem site)
205. ABC050B - Contest with Drinks Easy (problem site)
206. ABC050A - Addition and Subtraction Easy (problem site)
207. ABC049D - Connectivity (problem site)
208. ABC049C - Daydream (problem site)
209. ABC049B - Thin (problem site)
210. ABC049A - UOIAUAI (problem site)
211. ABC048D - An Ordinary Game (problem site)
212. ABC048C - Boxes and Candies (problem site)
213. ABC048B - Between a and b ... (problem site)
214. ABC048A - AtCoder *** Contest (problem site)
215. ABC047D - An Invisible Hand (problem site)
216. ABC047C - 1D Reversi (problem site)
217. ABC047B - Snuke's Coloring 2 (problem site)
218. ABC047A - Fighting over Candies (problem site)
219. ABC046D - AtCoDeer and Rock-Paper (problem site)
220. ABC046C - AtCoDeer and Election Report (problem site)
221. ABC046B - Painting Balls with AtCoDeer (problem site)
222. ABC046A - AtCoDeer and Paint Cans (problem site)
223. ABC045D - Sunke's Coloring (problem site)
224. ABC045C - Many Formulas (problem site)
225. ABC045B - Card Game for Three (ABC Edit) (problem site)
226. ABC045A - Trapezoids (problem site)
227. ABC044D - Digit Sum (problem site)
228. ABC044C - Tak and Cards (problem site)
229. ABC044B - Beautiful Strings (problem site)
230. ABC044A - Tak and Hotels (ABC Edit) (problem site)
231. ABC043D - Unbalanced (problem site)
232. ABC043C - Be Together (problem site)
233. ABC043B - Unhappy Hacking (ABC Edit) (problem site)
234. ABC043A - Children and Candies (ABC Edit) (problem site)
235. ABC042D - Iroha and a Grid (problem site)
236. ABC042C - Iroha's Obsession (problem site)
237. ABC042B - Iroha Loves Strings (ABC Edition) (problem site)
238. ABC042A - Iroha and Haiku (ABC Edition) (problem site)

Other Atcoder contests

1. ACL1B - Sum is Multiple (problem site)
2. DPT - Permutation (problem site)
3. DPS - Digit Sum (problem site)
4. DPR - Walk (problem site)
5. DPQ - Flowers (problem site)
6. DPP - Independent Set (problem site)
7. DPO - Matching (problem site)
8. DPN - Slimes (problem site)
9. DPM - Candies (problem site)
10. DPL - Deque (problem site)
11. DPK - Stones (problem site)
12. DPJ - Sushi (problem site)
13. DPI - Coins (problem site)
14. DPH - Grid 1 (problem site)
15. DPG - Longest Path (problem site)
16. DPF - LCS (problem site)
17. DPE - Knapsack 2 (problem site)
18. DPD - Knapsack 1 (problem site)
19. DPC - Vacation (problem site)
20. DPB - Frog 2 (problem site)
21. DPA - Frog 1 (problem site)
22. JSC2019B - Kleene Inversion (problem site)
23. JSC2019A - Takahashi Calendar (problem site)
24. N20192B - Counting of Trees (problem site)
25. N20192A - Sum of Two Integers (problem site)
26. SH2018D - Saving Snuuk (problem site)
27. SH2018C - Ordinary Beauty (problem site)
28. SH2018B - Acrostic (problem site)
29. SH2018A - F (problem site)
30. MPC2017A - Robot Racing (problem site)
31. CF2016QBC - Gr-idian MST (problem site)