AtCoder Tags
Home
Category
Vote
Check
Collect
Graph
Wanted
Ranking
Login
String
#
ID
Name
Difficulty
Solver
1
abc230_a
A. AtCoder Quiz 3
-1358
15601
2
abc222_a
A. Four Digits
-1316
17230
3
abc224_a
A. Tires
-1263
16359
4
abc279_a
A. wwwvvvvvv
-1224
14800
5
abc236_a
A. chukodai
-1207
17004
6
abc388_a
A. ?UPC
-1184
14973
7
abc335_a
A. 202<s>3</s>
-1139
17479
8
abc235_a
A. Rotate
-1104
15985
9
abc379_a
A. Cyclic
-1053
14569
10
abc377_a
A. Rearranging ABC
-1012
13396
11
abc315_a
A. tcdr
-997
15872
12
abc160_a
A. Coffee
-986
23154
13
abc151_a
A. Next Alphabet
-966
17713
14
abc226_a
A. Round decimals
-930
15383
15
abc154_b
B. I miss you...
-915
17598
16
abc380_a
A. 123233
-880
15274
17
abc168_b
B. ... (Triple Dots)
-769
21452
18
abc167_a
A. Registration
-765
22516
19
abc257_a
A. A to Z String 2
-754
13164
20
abc192_b
B. uNrEaDaBlE sTrInG
-748
16807
21
abc233_b
B. A Reverse
-748
14123
22
abc268_b
B. Prefix?
-696
12591
23
abc357_b
B. Uppercase and Lowercase
-687
15758
24
abc380_b
B. Hurdle Parsing
-683
14372
25
abc148_b
B. Strings with the Same Length
-640
16332
26
abc230_b
B. Triple Metre
-550
12370
27
abc279_b
B. LOOKUP
-533
11807
28
tenka1_2019_b
B. *e**** ********e* *e****e* ****e**
-500
6724
29
abc147_b
B. Palindrome-philia
-481
15800
30
abc145_b
B. Echo
-436
15663
31
abc322_b
B. Prefix and Suffix
-398
17909
32
abc221_b
B. typo
-371
14984
33
abc280_c
C. Extra Character
-333
12337
34
abc143_c
C. Slimes
-322
15582
35
abc069_b
B. i18n
-317
14361
36
abc072_b
B. OddString
-297
12719
37
arc031_1
A. 名前
-284
3222
38
abc146_b
B. ROT N
-265
15674
39
abc041_a
A. 添字
-238
13984
40
abc320_b
B. Longest Palindrome
-225
16313
41
abc223_b
B. String Shifting
-213
11883
42
abc159_b
B. String Palindrome
-190
16710
43
code_festival_2017_quala_a
A. Snuke's favorite YAKINIKU
-158
4624
44
abc063_b
B. Varied
-140
11989
45
abc122_b
B. ATCoder
-122
21227
46
abc029_b
B. カキ
-75
6696
47
tenka1_2014_qualB_a
A. HAGIXILE
-3
1689
48
arc040_a
A. 床塗り
53
2766
49
arc035_a
A. 高橋くんと回文
101
2790
50
abc299_c
C. Dango
104
10079
51
abc103_b
B. String Rotation
110
13560
52
abc071_b
B. Not Found
115
14409
53
abc187_c
C. 1-SAT
137
12837
54
abc058_b
B. ∵∴∵
155
12350
55
abc059_b
B. Comparison
158
11365
56
abc020_b
B. 足し算
160
6510
57
abc011_2
B. 名前の確認
172
6787
58
discovery_2016_qual_a
A. DISCO presents ディスカバリーチャンネルプログラミングコンテスト 2016
193
1895
59
indeednow_2015_quala_2
B. Indeedなう!
204
2079
60
arc045_a
A. スペース高橋君
221
2946
61
abc237_c
C. kasaka
239
11372
62
abc044_b
B. Beautiful Strings
243
14510
63
abc002_2
B. 罠
298
9983
64
code_formula_2014_qualA_b
B. ボウリングゲーム
308
1863
65
abc091_b
B. Two Colors Card Game
310
14886
66
tenka1_2014_qualA_a
A. 天下一序数
344
2112
67
abc300_b
B. Same Map in the RPG World
350
10095
68
abc098_b
B. Cut and Count
358
11879
69
abc066_b
B. ss
384
12182
70
tenka1_2012_qualA_2
B. 分類たん
414
2490
71
cf_2015_morning_easy_b
B. ヘイホー君と置き換え
429
1572
72
abc199_c
C. IPFL
436
11944
73
abc018_2
B. 文字列の反転
469
6206
74
abc043_b
B. Unhappy Hacking (ABC Edit)
512
15326
75
agc006_a
A. Prefix and Suffix
516
6721
76
abc300_c
C. Cross
534
8290
77
abc019_2
B. 高橋くんと文字列圧縮
534
7118
78
abc017_2
B. choku語
547
6289
79
abc137_c
C. Green Bin
597
14930
80
abc042_b
B. Iroha Loves Strings (ABC Edition)
616
20921
81
abc045_b
B. Card Game for Three (ABC Edit)
635
11531
82
code_formula_2014_final_c
C. 次世代SNS
666
1621
83
arc071_a
C. Dubious Document
680
9264
84
zone2021_d
D. Message from Aliens
719
5888
85
arc141_a
A. Periodic Number
734
3041
86
agc022_a
A. Diverse Word
738
4661
87
arc003_2
B. さかさま辞書
746
3723
88
abc033_c
C. 数式の書き換え
755
5255
89
arc008_2
B. 謎のたこ焼きおじさん
772
2823
90
digitalarts_1
A. C-Filter
808
1884
91
cf17_final_b
B. Palindrome-phobia
812
4573
92
diverta2019_c
C. AB Substrings
922
6354
93
arc065_a
C. Daydream
930
41246
94
abc110_c
C. String Transformation
949
8330
95
code_festival_2017_qualc_c
C. Inserting 'x'
975
4231
96
agc005_a
A. STring
1054
6223
97
codefestival_2016_qualA_c
C. Next Letter
1077
4355
98
tenka1_2012_10
B. ロイヤルストレートフラッシュ
1080
1314
99
arc097_a
C. K-th Substring
1108
8127
100
agc048_a
A. atcoder < S
1187
2738
101
arc019_2
B. こだわりの名前
1209
2139
102
abc353_e
E. Yet Another Sigma Problem
1217
5656
103
tenka1_2015_qualB_b
B. 天下一リテラル
1269
1242
104
abc242_e
E. (∀x∀)
1365
4427
105
digitalarts_2
B. Password
1373
1129
106
arc059_b
D. Unbalanced
1374
7816
107
abc403_e
E. Forbidden Prefix
1447
3173
108
abc141_e
E. Who Says a Pun?
1459
5196
109
tenka1_2012_6
B. camel_case
1526
685
110
abc284_f
F. ABCBAC
1575
3797
111
abc362_g
G. Count Substring Query
1625
2625
112
abc331_f
F. Palindrome Query
1666
3069
113
abc377_g
G. Edit to Match
1782
1899
114
arc024_3
C. だれじゃ
1844
972
115
agc047_b
B. First Second
1871
1657
116
abc343_g
G. Compress Strings
2114
1427
117
abc213_f
F. Common Prefixes
2215
1252
118
abc272_f
F. Two Strings
2238
1091
119
abc150_f
F. Xor Shift
2281
1699
120
panasonic2020_e
E. Three Substrings
2309
1022
121
abc268_g
G. Random Student ID
2311
968
122
abc135_f
F. Strings of Eternity
2388
1383
123
arc055_c
C. ABCAC
2392
514
124
arc050_d
D. Suffix Concat
2487
243
125
tenka1_2013_qualA_d
D. 天下一展開
2507
88
126
discovery_2016_qual_c
C. アメージングな文字列は、きみが作る!
2527
159
127
abc268_h
Ex. Taboo
2560
659
128
codefestival_2016_qualB_e
E. Lexicographical disorder
2576
428
129
tenka1_2015_qualB_d
D. 天下一電卓英作文
2798
56
130
arc060_d
F. Best Representation
2804
1019
131
arc099_d
F. Eating Symbols Hard
3039
658
132
arc077_d
F. SS
3370
471
133
arc058_d
F. Iroha Loves Strings
3678
486
134
agc036_e
E. ABC String
3783
357
135
abc150_b
B. Count ABC
null
18250
136
abc306_a
A. Echo
null
14228
137
abc304_a
A. First Player
null
12183
138
past201912_f
F. DoubleCamelCase Sort
null
4281
139
yahoo_procon2018_qual_a
A. yahoo
null
2208
140
dwacon2018_prelims_a
A. ニコニコ文字列判定
null
2070
141
joi2021_yo1a_b
B. JOI ソート (JOI Sort)
null
2057
142
iroha2019_day1_a
A. 一問目
null
1993
143
past202005_a
A. Case Sensitive
null
1823
144
joi2021_yo1c_b
B. IOI 文字列 (IOI String)
null
1759
145
joi2007yo_c
C. シーザー暗号
null
1717
146
joi2008yo_b
B. JOIとIOI
null
1706
147
soundhound2018_a
A. SoundHound
null
1684
148
iroha2019_day1_b
B. ローリング・老人と海
null
1579
149
joi2020_yo1c_b
B. キャピタリゼーション (Capitalization)
null
1502
150
bitflyer2018_final_a
A. 値札
null
1296
151
joi2011yo_b
B. 指輪 (Ring)
null
1188
152
past202005_d
D. Digital Display
null
1125
153
nikkei2019ex_a
A. Prefix Array
null
1122
154
practice2_i
I. Number of Substrings
null
1071
155
ttpc2019_b
B. okyoech
null
1061
156
past202004_j
J. Parse
null
1023
157
cpsco2019_s1_b
B. Beautiful Harmony
null
847
158
joi2012ho1
A. JJOOII (JJOOII)
null
835
159
njpc2017_a
A. 入力フォーム
null
801
160
nyc2015_1
A. 2015
null
768
161
typical90_au
047. Monochromatic Diagonal(★7)
null
761
162
yahoo_procon2017_qual_c
C. 検索
null
757
163
tkppc2016_a
A. 入社(Join the Company)
null
684
164
colopl2018_final_b
B. 異世界数式
null
683
165
joi2006yo_b
B. JOI 2006 予選 問題2
null
659
166
yuha_c88_a
A. エンド・オブ・ビギニング
null
634
167
relay_b
B. Mirror String
null
617
168
past202012_j
J. Long Long String
null
525
169
cpsco2019_s2_c
C. Delicious Burgers
null
479
170
joisc2010_dna
dna. DNAの合成 (DNA Synthesizer)
null
336
171
ttpc2015_c
C. おおおかやま
null
298
172
qupc2014_b
B. 元素の系統名
null
294
173
tenka1_2016_final_c
C. たんごたくさん
null
292
174
joi2020_yo2_e
E. じゃんけん式 (Rock-Scissors-Paper Expression)
null
268
175
jag2016secretspring_c
C. みさわさんの根付き木
null
258
176
s8pc_2_e
E. 部分文字列
null
216
177
jag2017autumn_b
B. Tournament Chart
null
207
178
wupc2019_e
E. Artist
null
201
179
jag2017autumn_h
H. Separate String
null
150
180
ddcc2020_final_c
C. Smaller-Suffix-Free Sequences
null
137
181
bitflyer2018_final_e
E. 数式とクエリ
null
110
182
yuha_c88_e
E. 必殺!無限覇王斬!
null
110
183
hbpc_3
C. 1=0.999...
null
105
184
jag2017summer_day1_e
E. ベクトル式
null
97
185
iroha2019_day2_h
H. 根室の巫女
null
93
186
kupc2015_f
F. 逆ポーランド記法
null
89
187
icpc2013autumn_f
F. Shipura
null
89
188
icpc2015autumn_e
E. Shifting a Matrix
null
80
189
ukuku09_d
D. ukuku
null
72
190
icpc2013summer_day3_g
G. Unordered Operators
null
71
191
icpc2014summer_day4_f
F. Longest Match
null
68
192
icpc2014autumn_h
H. Points and Lines
null
58
193
kupc2016_f
F. Speed Solving
null
52
194
icpc2014summer_day4_e
E. AI
null
47
195
icpc2015summer_day2_e
E. 坑道数式
null
37
196
autumn_fest_07
G. Bit Map
null
31
197
maximum_cup_2018_g
G. Sparrow's trick
null
28
198
ttpc2019_l
L. 多項式の零点の個数
null
27
199
icpc2016autumn_j
J. Compressed Formula
null
15
200
ttpc2015_p
P. Dancing stars on regular expression!
null
4