AtCoder Tags
Home
Category
Vote
Check
Collect
Graph
Wanted
Ranking
Login
String
#
ID
Name
Difficulty
Solver
1
abc230_a
A. AtCoder Quiz 3
-1358
14436
2
abc222_a
A. Four Digits
-1316
15528
3
abc224_a
A. Tires
-1263
15228
4
abc279_a
A. wwwvvvvvv
-1224
13552
5
abc236_a
A. chukodai
-1207
16073
6
abc335_a
A. 202<s>3</s>
-1139
16165
7
abc235_a
A. Rotate
-1104
14324
8
abc379_a
A. Cyclic
-1053
11951
9
abc377_a
A. Rearranging ABC
-1012
11156
10
abc315_a
A. tcdr
-997
14554
11
abc160_a
A. Coffee
-986
22262
12
abc151_a
A. Next Alphabet
-966
16794
13
abc226_a
A. Round decimals
-930
14202
14
abc154_b
B. I miss you...
-915
16927
15
abc380_a
A. 123233
-880
11676
16
abc168_b
B. ... (Triple Dots)
-769
20838
17
abc167_a
A. Registration
-765
21836
18
abc257_a
A. A to Z String 2
-754
12529
19
abc192_b
B. uNrEaDaBlE sTrInG
-748
15640
20
abc233_b
B. A Reverse
-748
13039
21
abc268_b
B. Prefix?
-696
11844
22
abc357_b
B. Uppercase and Lowercase
-687
14565
23
abc380_b
B. Hurdle Parsing
-683
11303
24
abc148_b
B. Strings with the Same Length
-640
15675
25
abc230_b
B. Triple Metre
-550
11616
26
abc279_b
B. LOOKUP
-533
11226
27
tenka1_2019_b
B. *e**** ********e* *e****e* ****e**
-500
6559
28
abc147_b
B. Palindrome-philia
-481
15175
29
abc145_b
B. Echo
-436
15142
30
abc322_b
B. Prefix and Suffix
-398
16771
31
abc221_b
B. typo
-371
14004
32
abc280_c
C. Extra Character
-333
11582
33
abc143_c
C. Slimes
-322
14928
34
abc069_b
B. i18n
-317
13419
35
abc072_b
B. OddString
-297
11979
36
arc031_1
A. 名前
-284
3026
37
abc146_b
B. ROT N
-265
14953
38
abc041_a
A. 添字
-238
12759
39
abc320_b
B. Longest Palindrome
-225
15125
40
abc223_b
B. String Shifting
-213
11224
41
abc159_b
B. String Palindrome
-190
16266
42
code_festival_2017_quala_a
A. Snuke's favorite YAKINIKU
-158
4526
43
abc063_b
B. Varied
-140
11186
44
abc122_b
B. ATCoder
-122
19512
45
abc029_b
B. カキ
-75
6359
46
tenka1_2014_qualB_a
A. HAGIXILE
-3
1629
47
arc040_a
A. 床塗り
53
2693
48
arc035_a
A. 高橋くんと回文
101
2710
49
abc299_c
C. Dango
104
9188
50
abc103_b
B. String Rotation
110
12434
51
abc071_b
B. Not Found
115
12869
52
abc187_c
C. 1-SAT
137
12336
53
abc058_b
B. ∵∴∵
155
11387
54
abc059_b
B. Comparison
158
10529
55
abc020_b
B. 足し算
160
6219
56
abc011_2
B. 名前の確認
172
6432
57
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
1816
58
indeednow_2015_quala_2
B. Indeedなう!
204
2007
59
arc045_a
A. スペース高橋君
221
2846
60
abc237_c
C. kasaka
239
10704
61
abc044_b
B. Beautiful Strings
243
13432
62
abc002_2
B. 罠
298
9442
63
code_formula_2014_qualA_b
B. ボウリングゲーム
308
1802
64
abc091_b
B. Two Colors Card Game
310
13753
65
tenka1_2014_qualA_a
A. 天下一序数
344
2027
66
abc300_b
B. Same Map in the RPG World
350
8757
67
abc098_b
B. Cut and Count
358
11129
68
abc066_b
B. ss
384
11286
69
tenka1_2012_qualA_2
B. 分類たん
414
2383
70
cf_2015_morning_easy_b
B. ヘイホー君と置き換え
429
1507
71
abc199_c
C. IPFL
436
11518
72
abc018_2
B. 文字列の反転
469
5939
73
abc043_b
B. Unhappy Hacking (ABC Edit)
512
14236
74
agc006_a
A. Prefix and Suffix
516
6345
75
abc300_c
C. Cross
534
7285
76
abc019_2
B. 高橋くんと文字列圧縮
534
6703
77
abc017_2
B. choku語
547
6020
78
abc137_c
C. Green Bin
597
14209
79
abc042_b
B. Iroha Loves Strings (ABC Edition)
616
19257
80
abc045_b
B. Card Game for Three (ABC Edit)
635
10828
81
code_formula_2014_final_c
C. 次世代SNS
666
1561
82
arc071_a
C. Dubious Document
680
8767
83
zone2021_d
D. Message from Aliens
719
5725
84
arc141_a
A. Periodic Number
734
2910
85
agc022_a
A. Diverse Word
738
4497
86
arc003_2
B. さかさま辞書
746
3616
87
abc033_c
C. 数式の書き換え
755
5081
88
arc008_2
B. 謎のたこ焼きおじさん
772
2753
89
digitalarts_1
A. C-Filter
808
1819
90
cf17_final_b
B. Palindrome-phobia
812
4388
91
diverta2019_c
C. AB Substrings
922
6139
92
arc065_a
C. Daydream
930
37162
93
abc110_c
C. String Transformation
949
7948
94
code_festival_2017_qualc_c
C. Inserting 'x'
975
4139
95
agc005_a
A. STring
1054
5926
96
codefestival_2016_qualA_c
C. Next Letter
1077
4212
97
tenka1_2012_10
B. ロイヤルストレートフラッシュ
1080
1268
98
arc097_a
C. K-th Substring
1108
7746
99
agc048_a
A. atcoder < S
1187
2650
100
arc019_2
B. こだわりの名前
1209
2076
101
abc353_e
E. Yet Another Sigma Problem
1217
4846
102
tenka1_2015_qualB_b
B. 天下一リテラル
1269
1208
103
abc242_e
E. (∀x∀)
1365
4089
104
digitalarts_2
B. Password
1373
1105
105
arc059_b
D. Unbalanced
1374
7211
106
abc141_e
E. Who Says a Pun?
1459
4826
107
tenka1_2012_6
B. camel_case
1526
680
108
abc284_f
F. ABCBAC
1575
3296
109
abc362_g
G. Count Substring Query
1625
2363
110
abc331_f
F. Palindrome Query
1666
2576
111
abc377_g
G. Edit to Match
1782
1519
112
arc024_3
C. だれじゃ
1844
950
113
agc047_b
B. First Second
1871
1497
114
abc343_g
G. Compress Strings
2114
1260
115
abc213_f
F. Common Prefixes
2215
1104
116
abc272_f
F. Two Strings
2238
1008
117
abc150_f
F. Xor Shift
2281
1539
118
panasonic2020_e
E. Three Substrings
2309
1002
119
abc268_g
G. Random Student ID
2311
823
120
abc135_f
F. Strings of Eternity
2388
1294
121
arc055_c
C. ABCAC
2392
488
122
arc050_d
D. Suffix Concat
2487
231
123
tenka1_2013_qualA_d
D. 天下一展開
2507
88
124
discovery_2016_qual_c
C. アメージングな文字列は、きみが作る!
2527
151
125
codefestival_2016_qualB_e
E. Lexicographical disorder
2576
408
126
tenka1_2015_qualB_d
D. 天下一電卓英作文
2798
58
127
arc060_d
F. Best Representation
2804
861
128
arc099_d
F. Eating Symbols Hard
3039
591
129
arc077_d
F. SS
3370
452
130
arc058_d
F. Iroha Loves Strings
3678
425
131
agc036_e
E. ABC String
3783
306
132
abc150_b
B. Count ABC
null
17386
133
abc306_a
A. Echo
null
13012
134
abc304_a
A. First Player
null
11184
135
past201912_f
F. DoubleCamelCase Sort
null
3944
136
yahoo_procon2018_qual_a
A. yahoo
null
2177
137
dwacon2018_prelims_a
A. ニコニコ文字列判定
null
2048
138
iroha2019_day1_a
A. 一問目
null
1935
139
joi2021_yo1a_b
B. JOI ソート (JOI Sort)
null
1802
140
past202005_a
A. Case Sensitive
null
1732
141
soundhound2018_a
A. SoundHound
null
1659
142
joi2007yo_c
C. シーザー暗号
null
1559
143
iroha2019_day1_b
B. ローリング・老人と海
null
1535
144
joi2008yo_b
B. JOIとIOI
null
1519
145
joi2021_yo1c_b
B. IOI 文字列 (IOI String)
null
1510
146
joi2020_yo1c_b
B. キャピタリゼーション (Capitalization)
null
1357
147
bitflyer2018_final_a
A. 値札
null
1289
148
nikkei2019ex_a
A. Prefix Array
null
1097
149
past202005_d
D. Digital Display
null
1075
150
joi2011yo_b
B. 指輪 (Ring)
null
1059
151
ttpc2019_b
B. okyoech
null
1046
152
past202004_j
J. Parse
null
958
153
practice2_i
I. Number of Substrings
null
954
154
cpsco2019_s1_b
B. Beautiful Harmony
null
818
155
njpc2017_a
A. 入力フォーム
null
771
156
nyc2015_1
A. 2015
null
756
157
yahoo_procon2017_qual_c
C. 検索
null
755
158
joi2012ho1
A. JJOOII (JJOOII)
null
698
159
tkppc2016_a
A. 入社(Join the Company)
null
670
160
typical90_au
047. Monochromatic Diagonal(★7)
null
640
161
colopl2018_final_b
B. 異世界数式
null
612
162
yuha_c88_a
A. エンド・オブ・ビギニング
null
611
163
joi2006yo_b
B. JOI 2006 予選 問題2
null
597
164
relay_b
B. Mirror String
null
594
165
past202012_j
J. Long Long String
null
491
166
cpsco2019_s2_c
C. Delicious Burgers
null
460
167
qupc2014_b
B. 元素の系統名
null
287
168
joisc2010_dna
dna. DNAの合成 (DNA Synthesizer)
null
282
169
ttpc2015_c
C. おおおかやま
null
275
170
tenka1_2016_final_c
C. たんごたくさん
null
255
171
jag2016secretspring_c
C. みさわさんの根付き木
null
254
172
joi2020_yo2_e
E. じゃんけん式 (Rock-Scissors-Paper Expression)
null
225
173
jag2017autumn_b
B. Tournament Chart
null
204
174
s8pc_2_e
E. 部分文字列
null
202
175
wupc2019_e
E. Artist
null
181
176
jag2017autumn_h
H. Separate String
null
146
177
ddcc2020_final_c
C. Smaller-Suffix-Free Sequences
null
132
178
yuha_c88_e
E. 必殺!無限覇王斬!
null
110
179
hbpc_3
C. 1=0.999...
null
109
180
bitflyer2018_final_e
E. 数式とクエリ
null
105
181
icpc2013autumn_f
F. Shipura
null
88
182
kupc2015_f
F. 逆ポーランド記法
null
87
183
jag2017summer_day1_e
E. ベクトル式
null
86
184
icpc2015autumn_e
E. Shifting a Matrix
null
81
185
iroha2019_day2_h
H. 根室の巫女
null
70
186
ukuku09_d
D. ukuku
null
68
187
icpc2014summer_day4_f
F. Longest Match
null
65
188
icpc2014autumn_h
H. Points and Lines
null
57
189
kupc2016_f
F. Speed Solving
null
54
190
icpc2013summer_day3_g
G. Unordered Operators
null
52
191
icpc2014summer_day4_e
E. AI
null
47
192
icpc2015summer_day2_e
E. 坑道数式
null
35
193
autumn_fest_07
G. Bit Map
null
31
194
maximum_cup_2018_g
G. Sparrow's trick
null
28
195
ttpc2019_l
L. 多項式の零点の個数
null
22
196
icpc2016autumn_j
J. Compressed Formula
null
15
197
ttpc2015_p
P. Dancing stars on regular expression!
null
3