Technique

# ID Name Difficulty Solver
1 abc171_b B. Mix Juice -765 20300
2 abc317_b B. MissingNo. -764 13673
3 abc378_a A. Pairing -755 14015
4 abc336_b B. CTZ -683 13927
5 abc242_b B. Minimize Ordering -478 14719
6 abc311_b B. Vacation Together -312 14138
7 abc256_b B. Batters -227 11281
8 abc328_b B. 11/11 -213 12575
9 abc165_b B. 1% -200 19965
10 abc257_b B. 1D Pawn -194 10542
11 abc207_b B. Hydrate -161 13237
12 abc318_b B. Overlapping sheets -152 15195
13 abc220_c C. Long Sequence -86 15159
14 abc294_c C. Merge Sequences -59 10892
15 abc141_c C. Attack Survival -35 15848
16 abc134_c C. Exception Handling -31 15697
17 abc216_c C. Many Balls -6 13169
18 abc247_c C. 1 2 1 3 1 2 1 5 13323
19 tenka1_2012_qualA_1 A. 算盤の書 8 2077
20 abc203_c C. Friends and Travel costs 54 12698
21 abc215_c C. One More aab aba baa 76 12971
22 abc273_b B. Broken Rounding 77 9687
23 abc202_c C. Made Up 130 13964
24 tenka1_2013_qualB_a A. 天下一人力比較 147 1776
25 abc228_c C. Final Day 149 10053
26 arc124_a A. LR Constraints 149 3908
27 arc120_a A. Max Add 183 4384
28 abc127_c C. Prison 194 16271
29 abc219_c C. Neo-lexicographic Ordering 227 10274
30 abc166_c C. Peaks 233 16818
31 abc279_c C. RANDOM 246 9102
32 abc151_c C. Welcome to AtCoder 327 14268
33 abc246_c C. Coupon 330 11109
34 ddcc2020_qual_b B. Iron Bar Cutting 350 6186
35 abc210_c C. Colorful Candies 357 11343
36 abc222_c C. Swiss-System Tournament 366 8995
37 abc357_c C. Sierpinski carpet 370 10816
38 abc194_c C. Squared Error 386 12171
39 abc186_d D. Sum of difference 436 11898
40 arc126_a A. Make 10 465 4096
41 abc213_c C. Reorder Cards 481 11383
42 abc154_d D. Dice in Line 485 13204
43 arc104_b B. DNA Sequence 487 7565
44 abc171_d D. Replacing 498 13894
45 abc267_c C. Index × A(Continuous ver.) 524 9257
46 abc256_d D. Union of Interval 546 8325
47 abc278_d D. All Assign Point Add 559 8217
48 arc130_b B. Colorful Lines 576 3236
49 abc275_d D. Yet Another Recursive Function 606 8566
50 arc107_b B. Quadruple 633 5418
51 arc098_a C. Attention 635 12018
52 abc183_d D. Water Heater 662 9933
53 abc122_c C. GeT AC 700 12765
54 abc182_d D. Wandering 701 9297
55 abc233_d D. Count Interval 726 8412
56 abc229_d D. Longest X 745 7891
57 abc167_d D. Teleporter 754 12874
58 abc337_d D. Cheating Gomoku Narabe 760 7411
59 abc225_d D. Play Train 778 7390
60 arc013_2 B. 引越しできるかな？ 788 2567
61 abc294_e E. 2xN Grid 792 5876
62 abc136_d D. Gathering Children 794 10631
63 arc009_2 B. おとぎの国の高橋君 830 2600
64 abc221_d D. Online games 832 7956
65 abc353_d D. Another Sigma Problem 844 8030
66 arc042_a A. 掲示板 861 3045
67 abc130_d D. Enough Array 865 11335
68 abc113_c C. ID 878 9792
69 abc252_d D. Distinct Trio 884 7702
70 abc037_c C. 総和 915 6365
71 abc172_c C. Tsundoku 930 12012
72 abc188_d D. Snuke Prime 933 8356
73 abc295_d D. Three Days Ago 939 7870
74 arc035_b B. アットコーダー王国のコンテスト事情 949 2420
75 abc036_c C. 座圧 956 5622
76 abc163_d D. Sum of Large Numbers 960 10333
77 agc002_b B. Box and Ball 981 5929
78 abc386_d D. Diagonal Separation 996 5222
79 abc278_e E. Grid Filling 996 5126
80 agc011_b B. Colorful Creatures 998 4834
81 abc334_c C. Socks 2 1030 6295
82 abc367_d D. Pedometer 1037 6738
83 agc023_a A. Zero-Sum Ranges 1038 6728
84 abc035_c C. オセロ 1096 5230
85 nikkei2019_qual_c C. Different Strokes 1136 4523
86 abc246_d D. 2-variable Function 1148 7533
87 arc109_c C. Large RPS Tournament 1157 3464
88 abc297_e E. Kth Takoyaki Set 1176 5859
89 arc026_2 B. 完全数 1199 3267
90 abc089_d D. Practical Skill Test 1220 5012
91 abc338_d D. Island Tour 1234 4725
92 abc032_c C. 列 1244 5790
93 abc241_e E. Putting Candies 1248 4969
94 abc247_e E. Max Min 1256 5242
95 tokiomarine2020_c C. Lamps 1274 3913
96 abc014_3 C. AtColor 1276 6003
97 abc242_d D. ABC Transform 1286 5246
98 tenka1_2013_qualB_b B. 天下一後入れ先出しデータ構造 1286 1231
99 arc048_b B. AtCoderでじゃんけんを 1290 1842
100 abc106_d D. AtCoder Express 2 1319 5999
101 abc281_e E. Least Elements 1334 4501
102 arc119_c C. ARC Wrecker 2 1354 2732
103 abc187_e E. Through Path 1358 5166
104 arc025_2 B. チョコレート 1369 1737
105 abc367_e E. Permute K times 1370 4763
106 arc126_b B. Cross-free Matching 1370 2545
107 abc037_d D. 経路 1377 2917
108 abc080_d D. Recording 1383 4064
109 abc279_e E. Cheating Amidakuji 1390 3390
110 abc153_f F. Silver Fox vs Monster 1393 5076
111 arc022_2 B. 細長いお菓子 1395 2912
112 arc098_b D. Xor Sum 2 1404 6821
113 abc184_f F. Programming Contest 1423 5612
114 abc272_e E. Add and Mex 1434 4105
115 abc005_4 D. おいしいたこ焼きの焼き方 1447 3293
116 abc105_d D. Candy Distribution 1458 5108
117 arc120_c C. Swaps 2 1478 2447
118 abc123_d D. Cake 123 1489 6060
119 arc045_b B. ドキドキデート大作戦高橋君 1526 1782
120 abc018_3 C. 菱型カウント 1553 2347
121 abc001_4 D. 感雨時刻の整理 1565 3662
122 tenka1_2014_qualA_b B. かぶりん！ 1576 798
123 abc183_f F. Confluence 1586 3973
124 abc017_3 C. ハイスコア 1607 2936
125 arc017_3 C. 無駄なものが嫌いな人 1625 2017
126 abc351_e E. Jump Distance Sum 1627 3453
127 abc271_f F. XOR on Grid Path 1669 3235
128 abc377_e E. Permute K times 2 1685 2676
129 abc335_f F. Hop Sugoroku 1690 2893
130 abc204_e E. Rush Hour 2 1710 2836
131 abc018_4 D. バレンタインデー 1711 2050
132 abc339_f F. Product Equality 1716 3059
133 arc138_c C. Rotate and Play Game 1728 1791
134 abc013_4 D. 阿弥陀 1730 1851
135 arc071_c E. TrBBnsformBBtion 1739 2284
136 abc203_e E. White Pawn 1750 2543
137 abc023_c C. 収集王 1752 2413
138 abc293_g G. Triple Index 1753 2681
139 abc146_e E. Rem of Sum is Num 1762 3537
140 abc249_f F. Ignore Operations 1786 2450
141 arc089_b D. Checker 1797 2812
142 agc008_b B. Contiguous Repainting 1822 2738
143 abc242_g G. Range Pairing Query 1828 2643
144 agc026_c C. String Coloring 1836 2347
145 abc188_f F. +1-1x2 1865 3153
146 abc326_f F. Robot Rotation 1870 2109
147 agc010_b B. Boxes 1892 2546
148 arc014_4 D. grepマスター 1904 677
149 arc136_d D. Without Carry 1908 1739
150 abc336_f F. Rotation Puzzle 2018 1381
151 arc101_b D. Median of Medians 2073 2899
152 arc077_c E. guruguru 2117 1774
153 abc342_f F. Black Jack 2141 1364
154 arc020_3 C. A mod B Problem 2141 726
155 arc060_c E. Tak and Hotels 2154 2445
156 tokiomarine2020_d D. Knapsack Queries on a tree 2158 1274
157 arc003_4 D. シャッフル席替え 2194 551
158 dwango2016qual_d D. 庭園 2233 261
159 abc238_g G. Cubic? 2254 1589
160 abc143_f F. Distinct Numbers 2277 1637
161 abc212_f F. Greedy Takahashi 2332 1271
162 arc027_4 D. ぴょんぴょんトレーニング 2474 178
163 abc168_f F. . (Single Dot) 2478 893
164 arc024_4 D. バス停 2496 192
165 arc119_e E. Pancakes 2502 742
166 code_festival_morning_hard_c C. 宝探し 2 2521 103
167 code_formula_2014_final_h H. 平和協定 2726 103
168 arc067_d F. Yakiniku Restaurants 2729 1388
169 abc212_h H. Nim Counting 2741 751
170 acl1_d D. Keep Distances 2764 379
171 agc044_c C. Strange Dance 2889 742
172 agc011_d D. Half Reflector 2931 855
173 agc003_e E. Sequential operations on Sequence 2983 1386
174 agc003_f F. Fraction of Fractal 3344 885
175 arc070_c E. NarrowRectangles 3365 693
176 arc072_d F. Dam 3414 676
177 arc063_d F. Snuke's Coloring 2 3688 566
178 typical90_d 004. Cross Sum（★2） null 15471
179 typical90_j 010. Score Sum Queries（★2） null 11794
180 typical90_n 014. We Used to Sing a Song Together（★3） null 9093
181 past201912_c C. The Third null 7618
182 typical90_bo 067. Base 8 to 9（★2） null 6278
183 typical90_ar 044. Shift and Swapping（★3） null 6031
184 past201912_d D. Duplicated? null 5320
185 typical90_ab 028. Cluttered Paper（★4） null 5217
186 math_and_algorithm_al 041. Convenience Store 2 null 5191
187 typical90_ah 034. There are few types of elements（★4） null 4885
188 typical90_bx 076. Cake Cut（★3） null 4695
189 typical90_bl 064. Uplift（★3） null 4679
190 past201912_e E. Restore null 4293
191 typical90_bf 058. Original Calculator（★4） null 4060
192 joi2008ho_c C. ダーツ null 3585
193 nikkei2019_final_a A. Abundant Resources null 3439
194 typical90_aj 036. Max Manhattan Distance（★5） null 3360
195 typical90_ay 051. Typical Shop（★5） null 2772
196 past202004_c C. Landslide null 2633
197 tessoku_book_cl B13. Supermarket 2 null 2628
198 judge_update_202004_b B. Picking Balls null 2560
199 joisc2014_c C. 歴史の研究 null 2458
200 past202005_e E. Sprinklers null 2371
201 past201912_h H. Bulk Selling null 2299
202 typical90_cc 081. Friendly Group（★5） null 2277
203 joi2010ho_a A. 旅人 null 2207
204 bitflyer2018_qual_b B. 洋菓子店 null 2087
205 joi2007ho_a A. 最大の和 null 1979
206 yahoo_procon2017_qual_a A. Yahoo null 1937
207 joi2015ho_a A. 鉄道旅行 (Railroad Trip) null 1770
208 typical90_e 005. Restricted Digits（★7） null 1677
209 gigacode_2019_d D. 家の建設 null 1639
210 joi2011ho1 A. 惑星探査 (Planetary Exploration) null 1628
211 past202004_e E. Permutation null 1626
212 joi2020_yo1a_c C. マージ (Merge) null 1567
213 math_and_algorithm_aj 039. Snowy Days null 1510
214 joi2019_yo_b B. すごろくと駒 (Sugoroku and Pieces) null 1467
215 past202005_b B. Dynamic Scoring null 1462
216 past202004_g G. String Query null 1442
217 s8pc_1_e E. 散歩 (E869120 and Path Length) null 1441
218 typical90_bj 062. Paint All（★6） null 1368
219 fft_c C. 高速フーリエ変換 null 1368
220 kupc2019_a A. November Festival null 1306
221 judge_update_202004_d D. Calculating GCD null 1195
222 dwacon2018_prelims_b B. 2525文字列分解 null 1181
223 joi2008yo_c C. カードゲーム null 1180
224 joi2007yo_d D. カードの並び替え null 1162
225 past202004_i I. Elimination null 1153
226 s8pc_6_a A. E869120, who Leaps through Time null 1144
227 kupc2020_a A. Classroom Distance null 1143
228 past202012_d D. Leading Zeros null 1131
229 joi2016yo_b B. ゼッケンの交換 (Swapping Bibs) null 1122
230 joi2017ho_a A. フェーン現象 (Foehn Phenomena) null 1111
231 joi2010yo_b B. すごろく null 1109
232 chokudai_S001_i I. 和がNの区間 null 1103
233 code_thanks_festival_2018_c C. Pair Distance null 1093
234 past202104_d D. K Integers Summations null 1079
235 practice2_h H. Two SAT null 1058
236 joi2012yo_b B. サッカー (Soccer) null 1020
237 joi2015yo_c C. 気象予報士 (Weather Forecaster) null 1014
238 typical90_ce 083. Colorful Graph（★6） null 1009
239 joi2012ho4 D. 釘 (Nails) null 998
240 joi2019ho_a A. 勇者ビ太郎 (Bitaro the Brave) null 993
241 iroha2019_day1_e E. 放課後 null 978
242 joi2014yo_c C. 超都観光 (Super Metropolis) null 975
243 joi2007ho_b B. 最長の階段 null 960
244 joi2021_yo2_a A. 往復すごろく (Round Sugoroku) null 955
245 typical90_cj 088. Similar but Different Ways（★6） null 947
246 joisc2007_score score. 得点 (Score) null 925
247 jsc2019_final_a A. Equal Weight null 921
248 past202005_i I. Matrix Operations null 894
249 mujin_pc_2018_c C. 右折 null 850
250 joi2020ho_a A. 長いだけのネクタイ (Just Long Neckties) null 798
251 joi2006yo_a A. JOI 2006 予選 問題1 null 796
252 joi2013yo_e E. 魚の生息範囲 (Fish) null 769
253 past202010_i I. ピザ null 766
254 typical90_bg 059. Many Graph Queries（★7） null 749
255 joisc2007_mall mall. ショッピングモール (Mall) null 743
256 joisc2014_h H. JOIOJI null 730
257 past201912_n N. Land Clearing null 710
258 s8pc_5_a A. Sushi 2 null 700
259 bitflyer2018_final_b B. 交通費 null 668
260 iroha2019_day2_c C. 陽気な妖姫 null 650
261 cpsco2019_s3_c C. Camp Reception null 631
262 joisc2010_poster poster. JOIポスター (JOI Poster) null 615
263 joi2008ho_e E. ペンキの色 null 611
264 past202104_f F. Safety System null 609
265 joi2018ho_b B. 美術展 (Art Exhibition) null 586
266 joisc2010_contest contest. コンテスト (Contest) null 539
267 tkppc3_c C. 新入生歓迎数列 - Easy null 496
268 joisc2015_b B. 愉快なロゴデザイン null 484
269 bcu30_2019_a A. Wolf Keyboard null 455
270 joi2006yo_c C. JOI 2006 予選 問題3 null 432
271 jag2016secretspring_b B. 豪邸と宅配便 null 427
272 joi2022_yo2_c C. 国土分割 (Land Division) null 426
273 tkppc4_1_f F. 不便な橋 null 417
274 bitflyer2018_qual_d D. ハンコ null 413
275 relay_c C. Kode Festival null 411
276 tkppc2015_c C. お姉ちゃんって呼んで (Call me sister) null 404
277 donuts_live2014_1 A. 勤怠管理 null 380
278 joi2009yo_e E. シャッフル null 369
279 past202012_o O. Notification null 333
280 qupc2014_c C. 案内所 null 329
281 tkppc2016_c C. 有給休暇（Paid Vacation） null 329
282 jag2017summer_day3_a A. Star in Parentheses null 327
283 relay2_b B. Evergrowing Tree null 327
284 past202005_n N. Swap and Sort null 311
285 code_thanks_festival_14_quala_e E. 儀式 null 307
286 code_thanks_festival_2015_d D. 暴露 null 307
287 indeednow_2015_finalb_b B. How are you? null 301
288 tkppc3_d D. 巨大チェスボード null 298
289 tkppc4_1_i I. school competition 1 null 276
290 joisc2010_aplusb aplusb. 足し算 (a + b problem) null 264
291 joisc2014_i I. かかし null 256
292 past202104_m M. Equal Queries null 238
293 qupc2018_e E. Treeone null 238
294 k4pc_b B. コミュニケーション能力(Communication Ability) null 227
295 kupc2012pr_4 D. A mul B Problem null 216
296 donuts_live2014_3 C. ソーシャルゲーム null 214
297 joisc2018_h H. ビ太郎のパーティー (Bitaro's Party) null 188
298 ddcc_2016_final_c C. 01文字列 null 188
299 yahoo_procon2017_final_c C. 倍数クエリ null 166
300 past202212_n N. Sequence and Function null 160
301 maximum_2013_e E. Alicia's Rare card Challenge null 115
302 maximum_2013_j J. ALPHAのならび null 110
303 dwango2017final_b B. ニワンゴくんの約数 null 104
304 tkppc4_2_f F. Segtree☆Magica null 91
305 kupc2012_6 F. Acceleration of Network null 87
306 code_thanks_festival_2015_h H. 穴あきケーキ null 86
307 joisc2019_b B. ビーバーの会合 (Meetings) null 75
308 jsc2019_final_d D. Minimize Maximum null 67
309 utpc2012_08 H. 区間スケジューリングクエリ null 65
310 wupc2019_h H. Doki Doki Programming Clubs! null 64
311 joi2006ho_e E. JOI 2006 本選 問題5 null 54
312 maximum_2013_h H. さいたまの矛盾 null 50
313 k2pc001_h5 E. 暗号化(Encipherment) null 43
314 pakencamp_2019_day4_f F. イーハチはやる null 42
315 joisc2019_l L. 鉱物 (Minerals) null 39
316 wupc_09 I. その味は甘くて null 36