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Technique
#
ID
Name
Difficulty
Solver
1
abc171_b
B. Mix Juice
-765
20685
2
abc317_b
C. MissingNo.
-764
14563
3
abc336_b
D. CTZ
-683
14630
4
abc242_b
C. Minimize Ordering
-478
15414
5
abc311_b
C. Vacation Together
-312
14851
6
abc256_b
D. Batters
-227
11844
7
abc328_b
D. 11/11
-213
13149
8
abc165_b
B. 1%
-200
20337
9
abc257_b
D. 1D Pawn
-194
11148
10
abc207_b
B. Hydrate
-161
13418
11
abc318_b
D. Overlapping sheets
-152
15795
12
abc220_c
E. Long Sequence
-86
16443
13
abc294_c
F. Merge Sequences
-59
11486
14
abc141_c
C. Attack Survival
-35
16205
15
abc134_c
C. Exception Handling
-31
16096
16
abc216_c
F. Many Balls
-6
13893
17
abc247_c
E. 1 2 1 3 1 2 1
5
14380
18
tenka1_2012_qualA_1
A. 算盤の書
8
2097
19
abc203_c
C. Friends and Travel costs
54
12952
20
abc215_c
F. One More aab aba baa
76
13593
21
abc273_b
D. Broken Rounding
77
10153
22
abc202_c
C. Made Up
130
14430
23
tenka1_2013_qualB_a
A. 天下一人力比較
147
1795
24
abc228_c
E. Final Day
149
10684
25
arc124_a
A. LR Constraints
149
3957
26
arc120_a
A. Max Add
183
4466
27
abc127_c
C. Prison
194
16793
28
abc219_c
E. Neo-lexicographic Ordering
227
10787
29
abc166_c
C. Peaks
233
17307
30
abc279_c
E. RANDOM
246
9579
31
abc151_c
C. Welcome to AtCoder
327
14582
32
abc246_c
F. Coupon
330
11568
33
ddcc2020_qual_b
B. Iron Bar Cutting
350
6338
34
abc210_c
C. Colorful Candies
357
11605
35
abc222_c
E. Swiss-System Tournament
366
9404
36
abc357_c
F. Sierpinski carpet
370
11289
37
abc194_c
C. Squared Error
386
12575
38
abc186_d
D. Sum of difference
436
12583
39
arc126_a
A. Make 10
465
4156
40
abc213_c
E. Reorder Cards
481
12039
41
abc154_d
D. Dice in Line
485
13556
42
arc104_b
B. DNA Sequence
487
7703
43
abc171_d
D. Replacing
498
14248
44
abc267_c
E. Index × A(Continuous ver.)
524
9824
45
abc256_d
G. Union of Interval
546
8733
46
abc278_d
G. All Assign Point Add
559
8559
47
arc130_b
B. Colorful Lines
576
3300
48
abc275_d
G. Yet Another Recursive Function
606
9091
49
arc107_b
B. Quadruple
633
5509
50
arc098_a
C. Attention
635
12399
51
abc183_d
D. Water Heater
662
10227
52
abc122_c
C. GeT AC
700
13369
53
abc182_d
D. Wandering
701
9471
54
abc233_d
G. Count Interval
726
8905
55
abc229_d
G. Longest X
745
8462
56
abc167_d
D. Teleporter
754
13334
57
abc337_d
G. Cheating Gomoku Narabe
760
7697
58
abc225_d
G. Play Train
778
7750
59
arc013_2
B. 引越しできるかな?
788
2605
60
abc294_e
H. 2xN Grid
792
6087
61
abc136_d
D. Gathering Children
794
10928
62
arc009_2
B. おとぎの国の高橋君
830
2629
63
abc221_d
G. Online games
832
8522
64
abc353_d
G. Another Sigma Problem
844
8444
65
arc042_a
A. 掲示板
861
3067
66
abc130_d
D. Enough Array
865
11838
67
abc113_c
C. ID
878
10005
68
abc252_d
G. Distinct Trio
884
8050
69
abc037_c
C. 総和
915
6593
70
abc172_c
C. Tsundoku
930
12295
71
abc188_d
D. Snuke Prime
933
8786
72
abc295_d
G. Three Days Ago
939
8412
73
arc035_b
B. アットコーダー王国のコンテスト事情
949
2446
74
abc036_c
C. 座圧
956
5756
75
abc163_d
D. Sum of Large Numbers
960
10485
76
agc002_b
B. Box and Ball
981
6100
77
abc386_d
G. Diagonal Separation
996
5476
78
abc278_e
H. Grid Filling
996
5297
79
agc011_b
B. Colorful Creatures
998
4958
80
abc334_c
E. Socks 2
1030
6632
81
abc367_d
G. Pedometer
1037
7030
82
agc023_a
A. Zero-Sum Ranges
1038
6906
83
abc035_c
C. オセロ
1096
5355
84
nikkei2019_qual_c
C. Different Strokes
1136
4567
85
abc246_d
G. 2-variable Function
1148
7850
86
arc109_c
C. Large RPS Tournament
1157
3512
87
abc297_e
H. Kth Takoyaki Set
1176
6192
88
arc026_2
B. 完全数
1199
3325
89
abc089_d
D. Practical Skill Test
1220
5138
90
abc338_d
G. Island Tour
1234
4976
91
abc032_c
C. 列
1244
6017
92
abc241_e
H. Putting Candies
1248
5239
93
abc247_e
H. Max Min
1256
5485
94
tokiomarine2020_c
C. Lamps
1274
3941
95
abc014_3
C. AtColor
1276
6200
96
abc242_d
G. ABC Transform
1286
5487
97
tenka1_2013_qualB_b
B. 天下一後入れ先出しデータ構造
1286
1237
98
arc048_b
B. AtCoderでじゃんけんを
1290
1861
99
abc106_d
D. AtCoder Express 2
1319
6186
100
abc281_e
H. Least Elements
1334
4740
101
arc119_c
C. ARC Wrecker 2
1354
2835
102
abc187_e
E. Through Path
1358
5294
103
arc025_2
B. チョコレート
1369
1745
104
abc367_e
H. Permute K times
1370
5102
105
arc126_b
B. Cross-free Matching
1370
2614
106
abc037_d
D. 経路
1377
2979
107
abc080_d
D. Recording
1383
4148
108
abc279_e
H. Cheating Amidakuji
1390
3540
109
abc153_f
F. Silver Fox vs Monster
1393
5244
110
arc022_2
B. 細長いお菓子
1395
2987
111
arc098_b
D. Xor Sum 2
1404
7150
112
abc184_f
F. Programming Contest
1423
5936
113
abc272_e
H. Add and Mex
1434
4285
114
abc005_4
D. おいしいたこ焼きの焼き方
1447
3376
115
abc105_d
D. Candy Distribution
1458
5319
116
arc120_c
C. Swaps 2
1478
2516
117
abc123_d
D. Cake 123
1489
6297
118
arc045_b
B. ドキドキデート大作戦高橋君
1526
1802
119
abc018_3
C. 菱型カウント
1553
2397
120
abc001_4
D. 感雨時刻の整理
1565
3767
121
tenka1_2014_qualA_b
B. かぶりん!
1576
800
122
abc183_f
F. Confluence
1586
4113
123
abc440_e
E. Cookies
1603
2835
124
abc017_3
C. ハイスコア
1607
2998
125
arc017_3
C. 無駄なものが嫌いな人
1625
2048
126
abc351_e
H. Jump Distance Sum
1627
3634
127
abc271_f
I. XOR on Grid Path
1669
3497
128
abc377_e
H. Permute K times 2
1685
2862
129
abc335_f
I. Hop Sugoroku
1690
3154
130
abc204_e
E. Rush Hour 2
1710
2954
131
abc018_4
D. バレンタインデー
1711
2094
132
abc339_f
I. Product Equality
1716
3255
133
arc138_c
C. Rotate and Play Game
1728
1821
134
abc013_4
D. 阿弥陀
1730
1916
135
arc071_c
E. TrBBnsformBBtion
1739
2323
136
abc203_e
E. White Pawn
1750
2647
137
abc023_c
C. 収集王
1752
2461
138
abc293_g
G. Triple Index
1753
2946
139
abc146_e
E. Rem of Sum is Num
1762
3656
140
abc249_f
I. Ignore Operations
1786
2566
141
arc089_b
D. Checker
1797
2869
142
agc008_b
B. Contiguous Repainting
1822
2895
143
abc242_g
G. Range Pairing Query
1828
2899
144
agc026_c
C. String Coloring
1836
2418
145
abc188_f
F. +1-1x2
1865
3228
146
abc326_f
I. Robot Rotation
1870
2245
147
agc010_b
B. Boxes
1892
2641
148
arc014_4
D. grepマスター
1904
689
149
arc136_d
D. Without Carry
1908
1918
150
abc336_f
I. Rotation Puzzle
2018
1470
151
arc101_b
D. Median of Medians
2073
3062
152
arc077_c
E. guruguru
2117
1799
153
abc342_f
I. Black Jack
2141
1454
154
arc020_3
C. A mod B Problem
2141
729
155
arc060_c
E. Tak and Hotels
2154
2604
156
tokiomarine2020_d
D. Knapsack Queries on a tree
2158
1314
157
arc003_4
D. シャッフル席替え
2194
555
158
dwango2016qual_d
D. 庭園
2233
264
159
abc238_g
G. Cubic?
2254
1689
160
abc143_f
F. Distinct Numbers
2277
1676
161
abc212_f
I. Greedy Takahashi
2332
1369
162
arc027_4
D. ぴょんぴょんトレーニング
2474
180
163
abc168_f
F. . (Single Dot)
2478
905
164
arc024_4
D. バス停
2496
197
165
arc119_e
E. Pancakes
2502
769
166
code_festival_morning_hard_c
C. 宝探し 2
2521
104
167
code_formula_2014_final_h
H. 平和協定
2726
98
168
arc067_d
F. Yakiniku Restaurants
2729
1478
169
abc212_h
H. Nim Counting
2741
892
170
acl1_d
D. Keep Distances
2764
376
171
agc044_c
C. Strange Dance
2889
877
172
agc011_d
D. Half Reflector
2931
889
173
agc003_e
E. Sequential operations on Sequence
2983
1457
174
agc003_f
F. Fraction of Fractal
3344
937
175
arc070_c
E. NarrowRectangles
3365
829
176
arc072_d
F. Dam
3414
690
177
arc063_d
F. Snuke's Coloring 2
3688
582
178
typical90_d
004. Cross Sum(★2)
null
16770
179
typical90_j
010. Score Sum Queries(★2)
null
12775
180
typical90_n
014. We Used to Sing a Song Together(★3)
null
9801
181
past201912_c
C. The Third
null
7852
182
typical90_bo
067. Base 8 to 9(★2)
null
6779
183
typical90_ar
044. Shift and Swapping(★3)
null
6496
184
math_and_algorithm_al
041. Convenience Store 2
null
5777
185
typical90_ab
028. Cluttered Paper(★4)
null
5628
186
past201912_d
D. Duplicated?
null
5476
187
typical90_ah
034. There are few types of elements(★4)
null
5260
188
typical90_bx
076. Cake Cut(★3)
null
5092
189
typical90_bl
064. Uplift(★3)
null
5065
190
past201912_e
E. Restore
null
4432
191
typical90_bf
058. Original Calculator(★4)
null
4410
192
joi2008ho_c
C. ダーツ
null
3816
193
typical90_aj
036. Max Manhattan Distance(★5)
null
3669
194
nikkei2019_final_a
A. Abundant Resources
null
3575
195
typical90_ay
051. Typical Shop(★5)
null
3007
196
tessoku_book_cl
B13. Supermarket 2
null
3004
197
past202004_c
C. Landslide
null
2724
198
joisc2014_c
C. 歴史の研究
null
2636
199
judge_update_202004_b
B. Picking Balls
null
2558
200
past202005_e
E. Sprinklers
null
2495
201
typical90_cc
081. Friendly Group(★5)
null
2479
202
past201912_h
H. Bulk Selling
null
2349
203
joi2010ho_a
A. 旅人
null
2315
204
joi2007ho_a
A. 最大の和
null
2105
205
bitflyer2018_qual_b
B. 洋菓子店
null
2080
206
yahoo_procon2017_qual_a
A. Yahoo
null
1939
207
typical90_e
005. Restricted Digits(★7)
null
1871
208
joi2015ho_a
A. 鉄道旅行 (Railroad Trip)
null
1850
209
joi2011ho1
A. 惑星探査 (Planetary Exploration)
null
1724
210
gigacode_2019_d
D. 家の建設
null
1687
211
past202004_e
E. Permutation
null
1676
212
joi2020_yo1a_c
C. マージ (Merge)
null
1642
213
math_and_algorithm_aj
039. Snowy Days
null
1614
214
joi2019_yo_b
B. すごろくと駒 (Sugoroku and Pieces)
null
1512
215
past202005_b
B. Dynamic Scoring
null
1494
216
s8pc_1_e
E. 散歩 (E869120 and Path Length)
null
1484
217
typical90_bj
062. Paint All(★6)
null
1479
218
past202004_g
G. String Query
null
1470
219
fft_c
C. 高速フーリエ変換
null
1413
220
kupc2019_a
A. November Festival
null
1306
221
joi2008yo_c
C. カードゲーム
null
1236
222
joi2007yo_d
D. カードの並び替え
null
1218
223
judge_update_202004_d
D. Calculating GCD
null
1204
224
joi2017ho_a
A. フェーン現象 (Foehn Phenomena)
null
1202
225
dwacon2018_prelims_b
B. 2525文字列分解
null
1178
226
joi2016yo_b
B. ゼッケンの交換 (Swapping Bibs)
null
1171
227
past202004_i
I. Elimination
null
1167
228
joi2010yo_b
B. すごろく
null
1159
229
past202012_d
D. Leading Zeros
null
1146
230
kupc2020_a
A. Classroom Distance
null
1144
231
s8pc_6_a
A. E869120, who Leaps through Time
null
1143
232
past202104_d
D. K Integers Summations
null
1135
233
chokudai_S001_i
I. 和がNの区間
null
1133
234
practice2_h
H. Two SAT
null
1133
235
typical90_ce
083. Colorful Graph(★6)
null
1111
236
code_thanks_festival_2018_c
C. Pair Distance
null
1093
237
joi2012ho4
D. 釘 (Nails)
null
1075
238
joi2012yo_b
B. サッカー (Soccer)
null
1072
239
joi2015yo_c
C. 気象予報士 (Weather Forecaster)
null
1057
240
joi2021_yo2_a
A. 往復すごろく (Round Sugoroku)
null
1047
241
joi2019ho_a
A. 勇者ビ太郎 (Bitaro the Brave)
null
1046
242
typical90_cj
088. Similar but Different Ways(★6)
null
1036
243
joi2007ho_b
B. 最長の階段
null
1031
244
joi2014yo_c
C. 超都観光 (Super Metropolis)
null
1024
245
iroha2019_day1_e
E. 放課後
null
984
246
joisc2007_score
score. 得点 (Score)
null
966
247
jsc2019_final_a
A. Equal Weight
null
928
248
past202005_i
I. Matrix Operations
null
907
249
joi2020ho_a
A. 長いだけのネクタイ (Just Long Neckties)
null
891
250
joi2006yo_a
A. JOI 2006 予選 問題1
null
851
251
mujin_pc_2018_c
C. 右折
null
850
252
typical90_bg
059. Many Graph Queries(★7)
null
831
253
joi2013yo_e
E. 魚の生息範囲 (Fish)
null
831
254
joisc2014_h
H. JOIOJI
null
803
255
past202010_i
I. ピザ
null
780
256
joisc2007_mall
mall. ショッピングモール (Mall)
null
778
257
past201912_n
N. Land Clearing
null
720
258
s8pc_5_a
A. Sushi 2
null
691
259
joi2008ho_e
E. ペンキの色
null
670
260
bitflyer2018_final_b
B. 交通費
null
669
261
joisc2010_poster
poster. JOIポスター (JOI Poster)
null
667
262
iroha2019_day2_c
C. 陽気な妖姫
null
649
263
joi2018ho_b
B. 美術展 (Art Exhibition)
null
647
264
cpsco2019_s3_c
C. Camp Reception
null
637
265
past202104_f
F. Safety System
null
624
266
joisc2010_contest
contest. コンテスト (Contest)
null
575
267
joisc2015_b
B. 愉快なロゴデザイン
null
530
268
joi2022_yo2_c
C. 国土分割 (Land Division)
null
494
269
tkppc3_c
C. 新入生歓迎数列 - Easy
null
492
270
joi2006yo_c
C. JOI 2006 予選 問題3
null
458
271
bcu30_2019_a
A. Wolf Keyboard
null
456
272
jag2016secretspring_b
B. 豪邸と宅配便
null
423
273
tkppc4_1_f
F. 不便な橋
null
418
274
relay_c
C. Kode Festival
null
412
275
bitflyer2018_qual_d
D. ハンコ
null
411
276
tkppc2015_c
C. お姉ちゃんって呼んで (Call me sister)
null
402
277
joi2009yo_e
E. シャッフル
null
399
278
donuts_live2014_1
A. 勤怠管理
null
379
279
past202012_o
O. Notification
null
335
280
qupc2014_c
C. 案内所
null
326
281
relay2_b
B. Evergrowing Tree
null
326
282
tkppc2016_c
C. 有給休暇(Paid Vacation)
null
326
283
past202005_n
N. Swap and Sort
null
321
284
jag2017summer_day3_a
A. Star in Parentheses
null
320
285
code_thanks_festival_14_quala_e
E. 儀式
null
308
286
code_thanks_festival_2015_d
D. 暴露
null
303
287
indeednow_2015_finalb_b
B. How are you?
null
299
288
tkppc3_d
D. 巨大チェスボード
null
296
289
joisc2010_aplusb
aplusb. 足し算 (a + b problem)
null
287
290
tkppc4_1_i
I. school competition 1
null
280
291
joisc2014_i
I. かかし
null
267
292
past202104_m
M. Equal Queries
null
258
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
225
295
donuts_live2014_3
C. ソーシャルゲーム
null
215
296
kupc2012pr_4
D. A mul B Problem
null
211
297
joisc2018_h
H. ビ太郎のパーティー (Bitaro's Party)
null
195
298
ddcc_2016_final_c
C. 01文字列
null
187
299
past202212_n
N. Sequence and Function
null
171
300
yahoo_procon2017_final_c
C. 倍数クエリ
null
166
301
maximum_2013_e
E. Alicia's Rare card Challenge
null
116
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
108
304
tkppc4_2_f
F. Segtree☆Magica
null
93
305
code_thanks_festival_2015_h
H. 穴あきケーキ
null
86
306
kupc2012_6
F. Acceleration of Network
null
86
307
joisc2019_b
B. ビーバーの会合 (Meetings)
null
74
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
67
310
wupc2019_h
H. Doki Doki Programming Clubs!
null
66
311
pakencamp_2019_day4_f
F. イーハチはやる
null
58
312
joi2006ho_e
E. JOI 2006 本選 問題5
null
55
313
maximum_2013_h
H. さいたまの矛盾
null
51
314
k2pc001_h5
E. 暗号化(Encipherment)
null
45
315
wupc_09
I. その味は甘くて
null
36
316
joisc2019_l
L. 鉱物 (Minerals)
null
35