AtCoder Tags
Home
Category
Vote
Check
Collect
Graph
Wanted
Ranking
Login
Technique
#
ID
Name
Difficulty
Solver
1
abc171_b
B. Mix Juice
-765
20245
2
abc317_b
B. MissingNo.
-764
13569
3
abc378_a
A. Pairing
-755
13904
4
abc336_b
B. CTZ
-683
13830
5
abc242_b
B. Minimize Ordering
-478
14632
6
abc311_b
B. Vacation Together
-312
13991
7
abc256_b
B. Batters
-227
11242
8
abc328_b
B. 11/11
-213
12517
9
abc165_b
B. 1%
-200
19916
10
abc257_b
B. 1D Pawn
-194
10508
11
abc207_b
B. Hydrate
-161
13199
12
abc318_b
B. Overlapping sheets
-152
15109
13
abc220_c
C. Long Sequence
-86
14966
14
abc294_c
C. Merge Sequences
-59
10823
15
abc141_c
C. Attack Survival
-35
15736
16
abc134_c
C. Exception Handling
-31
15605
17
abc216_c
C. Many Balls
-6
13075
18
abc247_c
C. 1 2 1 3 1 2 1
5
13177
19
tenka1_2012_qualA_1
A. 算盤の書
8
2072
20
abc203_c
C. Friends and Travel costs
54
12649
21
abc215_c
C. One More aab aba baa
76
12890
22
abc273_b
B. Broken Rounding
77
9647
23
abc202_c
C. Made Up
130
13859
24
tenka1_2013_qualB_a
A. 天下一人力比較
147
1767
25
abc228_c
C. Final Day
149
9997
26
arc124_a
A. LR Constraints
149
3895
27
arc120_a
A. Max Add
183
4358
28
abc127_c
C. Prison
194
16196
29
abc219_c
C. Neo-lexicographic Ordering
227
10206
30
abc166_c
C. Peaks
233
16729
31
abc279_c
C. RANDOM
246
9052
32
abc151_c
C. Welcome to AtCoder
327
14194
33
abc246_c
C. Coupon
330
11055
34
ddcc2020_qual_b
B. Iron Bar Cutting
350
6152
35
abc210_c
C. Colorful Candies
357
11270
36
abc222_c
C. Swiss-System Tournament
366
8933
37
abc357_c
C. Sierpinski carpet
370
10739
38
abc194_c
C. Squared Error
386
12104
39
abc186_d
D. Sum of difference
436
11800
40
arc126_a
A. Make 10
465
4075
41
abc213_c
C. Reorder Cards
481
11305
42
abc154_d
D. Dice in Line
485
13129
43
arc104_b
B. DNA Sequence
487
7545
44
abc171_d
D. Replacing
498
13853
45
abc267_c
C. Index × A(Continuous ver.)
524
9197
46
abc256_d
D. Union of Interval
546
8271
47
abc278_d
D. All Assign Point Add
559
8162
48
arc130_b
B. Colorful Lines
576
3229
49
abc275_d
D. Yet Another Recursive Function
606
8505
50
arc107_b
B. Quadruple
633
5405
51
arc098_a
C. Attention
635
11930
52
abc183_d
D. Water Heater
662
9888
53
abc122_c
C. GeT AC
700
12661
54
abc182_d
D. Wandering
701
9258
55
abc233_d
D. Count Interval
726
8301
56
abc229_d
D. Longest X
745
7825
57
abc167_d
D. Teleporter
754
12802
58
abc337_d
D. Cheating Gomoku Narabe
760
7358
59
abc225_d
D. Play Train
778
7334
60
arc013_2
B. 引越しできるかな?
788
2560
61
abc294_e
E. 2xN Grid
792
5827
62
abc136_d
D. Gathering Children
794
10570
63
arc009_2
B. おとぎの国の高橋君
830
2588
64
abc221_d
D. Online games
832
7883
65
abc353_d
D. Another Sigma Problem
844
7938
66
arc042_a
A. 掲示板
861
3035
67
abc130_d
D. Enough Array
865
11249
68
abc113_c
C. ID
878
9743
69
abc252_d
D. Distinct Trio
884
7654
70
abc037_c
C. 総和
915
6335
71
abc172_c
C. Tsundoku
930
11961
72
abc188_d
D. Snuke Prime
933
8298
73
abc295_d
D. Three Days Ago
939
7773
74
arc035_b
B. アットコーダー王国のコンテスト事情
949
2408
75
abc036_c
C. 座圧
956
5591
76
abc163_d
D. Sum of Large Numbers
960
10307
77
agc002_b
B. Box and Ball
981
5874
78
abc386_d
D. Diagonal Separation
996
5142
79
abc278_e
E. Grid Filling
996
5086
80
agc011_b
B. Colorful Creatures
998
4820
81
abc334_c
C. Socks 2
1030
6224
82
abc367_d
D. Pedometer
1037
6652
83
agc023_a
A. Zero-Sum Ranges
1038
6686
84
abc035_c
C. オセロ
1096
5203
85
nikkei2019_qual_c
C. Different Strokes
1136
4501
86
abc246_d
D. 2-variable Function
1148
7453
87
arc109_c
C. Large RPS Tournament
1157
3454
88
abc297_e
E. Kth Takoyaki Set
1176
5800
89
arc026_2
B. 完全数
1199
3259
90
abc089_d
D. Practical Skill Test
1220
4992
91
abc338_d
D. Island Tour
1234
4632
92
abc032_c
C. 列
1244
5763
93
abc241_e
E. Putting Candies
1248
4896
94
abc247_e
E. Max Min
1256
5179
95
tokiomarine2020_c
C. Lamps
1274
3905
96
abc014_3
C. AtColor
1276
5953
97
abc242_d
D. ABC Transform
1286
5208
98
tenka1_2013_qualB_b
B. 天下一後入れ先出しデータ構造
1286
1229
99
arc048_b
B. AtCoderでじゃんけんを
1290
1841
100
abc106_d
D. AtCoder Express 2
1319
5964
101
abc281_e
E. Least Elements
1334
4422
102
arc119_c
C. ARC Wrecker 2
1354
2717
103
abc187_e
E. Through Path
1358
5132
104
arc025_2
B. チョコレート
1369
1734
105
abc367_e
E. Permute K times
1370
4691
106
arc126_b
B. Cross-free Matching
1370
2534
107
abc037_d
D. 経路
1377
2903
108
abc080_d
D. Recording
1383
4043
109
abc279_e
E. Cheating Amidakuji
1390
3348
110
abc153_f
F. Silver Fox vs Monster
1393
5036
111
arc022_2
B. 細長いお菓子
1395
2902
112
arc098_b
D. Xor Sum 2
1404
6774
113
abc184_f
F. Programming Contest
1423
5543
114
abc272_e
E. Add and Mex
1434
4058
115
abc005_4
D. おいしいたこ焼きの焼き方
1447
3267
116
abc105_d
D. Candy Distribution
1458
5077
117
arc120_c
C. Swaps 2
1478
2432
118
abc123_d
D. Cake 123
1489
6009
119
arc045_b
B. ドキドキデート大作戦高橋君
1526
1775
120
abc018_3
C. 菱型カウント
1553
2337
121
abc001_4
D. 感雨時刻の整理
1565
3633
122
tenka1_2014_qualA_b
B. かぶりん!
1576
797
123
abc183_f
F. Confluence
1586
3939
124
abc017_3
C. ハイスコア
1607
2924
125
arc017_3
C. 無駄なものが嫌いな人
1625
2012
126
abc351_e
E. Jump Distance Sum
1627
3391
127
abc271_f
F. XOR on Grid Path
1669
3158
128
abc377_e
E. Permute K times 2
1685
2628
129
abc335_f
F. Hop Sugoroku
1690
2829
130
abc204_e
E. Rush Hour 2
1710
2813
131
abc018_4
D. バレンタインデー
1711
2039
132
abc339_f
F. Product Equality
1716
3027
133
arc138_c
C. Rotate and Play Game
1728
1783
134
abc013_4
D. 阿弥陀
1730
1840
135
arc071_c
E. TrBBnsformBBtion
1739
2269
136
abc203_e
E. White Pawn
1750
2516
137
abc023_c
C. 収集王
1752
2404
138
abc293_g
G. Triple Index
1753
2645
139
abc146_e
E. Rem of Sum is Num
1762
3512
140
abc249_f
F. Ignore Operations
1786
2428
141
arc089_b
D. Checker
1797
2800
142
agc008_b
B. Contiguous Repainting
1822
2704
143
abc242_g
G. Range Pairing Query
1828
2598
144
agc026_c
C. String Coloring
1836
2334
145
abc188_f
F. +1-1x2
1865
3121
146
abc326_f
F. Robot Rotation
1870
2086
147
agc010_b
B. Boxes
1892
2500
148
arc014_4
D. grepマスター
1904
676
149
arc136_d
D. Without Carry
1908
1719
150
abc336_f
F. Rotation Puzzle
2018
1358
151
arc101_b
D. Median of Medians
2073
2867
152
arc077_c
E. guruguru
2117
1767
153
abc342_f
F. Black Jack
2141
1349
154
arc020_3
C. A mod B Problem
2141
725
155
arc060_c
E. Tak and Hotels
2154
2422
156
tokiomarine2020_d
D. Knapsack Queries on a tree
2158
1270
157
arc003_4
D. シャッフル席替え
2194
547
158
dwango2016qual_d
D. 庭園
2233
261
159
abc238_g
G. Cubic?
2254
1570
160
abc143_f
F. Distinct Numbers
2277
1623
161
abc212_f
F. Greedy Takahashi
2332
1248
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
882
164
arc024_4
D. バス停
2496
191
165
arc119_e
E. Pancakes
2502
731
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
1369
169
abc212_h
H. Nim Counting
2741
722
170
acl1_d
D. Keep Distances
2764
378
171
agc044_c
C. Strange Dance
2889
731
172
agc011_d
D. Half Reflector
2931
844
173
agc003_e
E. Sequential operations on Sequence
2983
1359
174
agc003_f
F. Fraction of Fractal
3344
854
175
arc070_c
E. NarrowRectangles
3365
687
176
arc072_d
F. Dam
3414
661
177
arc063_d
F. Snuke's Coloring 2
3688
561
178
typical90_d
004. Cross Sum(★2)
null
15226
179
typical90_j
010. Score Sum Queries(★2)
null
11605
180
typical90_n
014. We Used to Sing a Song Together(★3)
null
8957
181
past201912_c
C. The Third
null
7569
182
typical90_bo
067. Base 8 to 9(★2)
null
6173
183
typical90_ar
044. Shift and Swapping(★3)
null
5936
184
past201912_d
D. Duplicated?
null
5292
185
typical90_ab
028. Cluttered Paper(★4)
null
5114
186
math_and_algorithm_al
041. Convenience Store 2
null
5071
187
typical90_ah
034. There are few types of elements(★4)
null
4809
188
typical90_bx
076. Cake Cut(★3)
null
4619
189
typical90_bl
064. Uplift(★3)
null
4595
190
past201912_e
E. Restore
null
4272
191
typical90_bf
058. Original Calculator(★4)
null
3991
192
joi2008ho_c
C. ダーツ
null
3558
193
nikkei2019_final_a
A. Abundant Resources
null
3412
194
typical90_aj
036. Max Manhattan Distance(★5)
null
3301
195
typical90_ay
051. Typical Shop(★5)
null
2733
196
past202004_c
C. Landslide
null
2618
197
judge_update_202004_b
B. Picking Balls
null
2560
198
tessoku_book_cl
B13. Supermarket 2
null
2548
199
joisc2014_c
C. 歴史の研究
null
2376
200
past202005_e
E. Sprinklers
null
2352
201
past201912_h
H. Bulk Selling
null
2291
202
typical90_cc
081. Friendly Group(★5)
null
2236
203
joi2010ho_a
A. 旅人
null
2182
204
bitflyer2018_qual_b
B. 洋菓子店
null
2084
205
joi2007ho_a
A. 最大の和
null
1961
206
yahoo_procon2017_qual_a
A. Yahoo
null
1934
207
joi2015ho_a
A. 鉄道旅行 (Railroad Trip)
null
1746
208
typical90_e
005. Restricted Digits(★7)
null
1633
209
gigacode_2019_d
D. 家の建設
null
1624
210
past202004_e
E. Permutation
null
1619
211
joi2011ho1
A. 惑星探査 (Planetary Exploration)
null
1609
212
joi2020_yo1a_c
C. マージ (Merge)
null
1540
213
math_and_algorithm_aj
039. Snowy Days
null
1489
214
past202005_b
B. Dynamic Scoring
null
1457
215
joi2019_yo_b
B. すごろくと駒 (Sugoroku and Pieces)
null
1456
216
past202004_g
G. String Query
null
1435
217
s8pc_1_e
E. 散歩 (E869120 and Path Length)
null
1430
218
typical90_bj
062. Paint All(★6)
null
1344
219
fft_c
C. 高速フーリエ変換
null
1342
220
kupc2019_a
A. November Festival
null
1306
221
judge_update_202004_d
D. Calculating GCD
null
1193
222
dwacon2018_prelims_b
B. 2525文字列分解
null
1180
223
joi2008yo_c
C. カードゲーム
null
1168
224
joi2007yo_d
D. カードの並び替え
null
1150
225
past202004_i
I. Elimination
null
1149
226
s8pc_6_a
A. E869120, who Leaps through Time
null
1143
227
kupc2020_a
A. Classroom Distance
null
1141
228
past202012_d
D. Leading Zeros
null
1128
229
joi2016yo_b
B. ゼッケンの交換 (Swapping Bibs)
null
1114
230
chokudai_S001_i
I. 和がNの区間
null
1101
231
joi2010yo_b
B. すごろく
null
1098
232
joi2017ho_a
A. フェーン現象 (Foehn Phenomena)
null
1094
233
code_thanks_festival_2018_c
C. Pair Distance
null
1093
234
past202104_d
D. K Integers Summations
null
1068
235
practice2_h
H. Two SAT
null
1046
236
joi2012yo_b
B. サッカー (Soccer)
null
1007
237
joi2015yo_c
C. 気象予報士 (Weather Forecaster)
null
1005
238
typical90_ce
083. Colorful Graph(★6)
null
994
239
joi2012ho4
D. 釘 (Nails)
null
982
240
iroha2019_day1_e
E. 放課後
null
977
241
joi2019ho_a
A. 勇者ビ太郎 (Bitaro the Brave)
null
975
242
joi2014yo_c
C. 超都観光 (Super Metropolis)
null
965
243
joi2007ho_b
B. 最長の階段
null
949
244
joi2021_yo2_a
A. 往復すごろく (Round Sugoroku)
null
942
245
typical90_cj
088. Similar but Different Ways(★6)
null
931
246
joisc2007_score
score. 得点 (Score)
null
920
247
jsc2019_final_a
A. Equal Weight
null
917
248
past202005_i
I. Matrix Operations
null
889
249
mujin_pc_2018_c
C. 右折
null
847
250
joi2006yo_a
A. JOI 2006 予選 問題1
null
791
251
joi2020ho_a
A. 長いだけのネクタイ (Just Long Neckties)
null
789
252
past202010_i
I. ピザ
null
761
253
joi2013yo_e
E. 魚の生息範囲 (Fish)
null
759
254
joisc2007_mall
mall. ショッピングモール (Mall)
null
738
255
typical90_bg
059. Many Graph Queries(★7)
null
737
256
joisc2014_h
H. JOIOJI
null
722
257
past201912_n
N. Land Clearing
null
707
258
s8pc_5_a
A. Sushi 2
null
696
259
bitflyer2018_final_b
B. 交通費
null
667
260
iroha2019_day2_c
C. 陽気な妖姫
null
648
261
cpsco2019_s3_c
C. Camp Reception
null
629
262
past202104_f
F. Safety System
null
608
263
joisc2010_poster
poster. JOIポスター (JOI Poster)
null
608
264
joi2008ho_e
E. ペンキの色
null
602
265
joi2018ho_b
B. 美術展 (Art Exhibition)
null
581
266
joisc2010_contest
contest. コンテスト (Contest)
null
534
267
tkppc3_c
C. 新入生歓迎数列 - Easy
null
495
268
joisc2015_b
B. 愉快なロゴデザイン
null
481
269
bcu30_2019_a
A. Wolf Keyboard
null
454
270
joi2006yo_c
C. JOI 2006 予選 問題3
null
430
271
jag2016secretspring_b
B. 豪邸と宅配便
null
426
272
joi2022_yo2_c
C. 国土分割 (Land Division)
null
421
273
tkppc4_1_f
F. 不便な橋
null
415
274
bitflyer2018_qual_d
D. ハンコ
null
413
275
relay_c
C. Kode Festival
null
410
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
374
278
joi2009yo_e
E. シャッフル
null
367
279
past202012_o
O. Notification
null
331
280
qupc2014_c
C. 案内所
null
327
281
tkppc2016_c
C. 有給休暇(Paid Vacation)
null
327
282
relay2_b
B. Evergrowing Tree
null
326
283
jag2017summer_day3_a
A. Star in Parentheses
null
321
284
code_thanks_festival_14_quala_e
E. 儀式
null
307
285
code_thanks_festival_2015_d
D. 暴露
null
307
286
past202005_n
N. Swap and Sort
null
305
287
indeednow_2015_finalb_b
B. How are you?
null
300
288
tkppc3_d
D. 巨大チェスボード
null
296
289
tkppc4_1_i
I. school competition 1
null
275
290
joisc2010_aplusb
aplusb. 足し算 (a + b problem)
null
262
291
joisc2014_i
I. かかし
null
252
292
qupc2018_e
E. Treeone
null
237
293
past202104_m
M. Equal Queries
null
236
294
k4pc_b
B. コミュニケーション能力(Communication Ability)
null
223
295
kupc2012pr_4
D. A mul B Problem
null
216
296
donuts_live2014_3
C. ソーシャルゲーム
null
211
297
ddcc_2016_final_c
C. 01文字列
null
188
298
joisc2018_h
H. ビ太郎のパーティー (Bitaro's Party)
null
185
299
yahoo_procon2017_final_c
C. 倍数クエリ
null
166
300
past202212_n
N. Sequence and Function
null
158
301
maximum_2013_e
E. Alicia's Rare card Challenge
null
114
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
103
304
tkppc4_2_f
F. Segtree☆Magica
null
90
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
74
308
jsc2019_final_d
D. Minimize Maximum
null
66
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
42
314
joisc2019_l
L. 鉱物 (Minerals)
null
38
315
wupc_09
I. その味は甘くて
null
36
316
pakencamp_2019_day4_f
F. イーハチはやる
null
27