Mathematics:数え上げ

# ID Name Difficulty Solver
1 abc222_b B. Failing Grade -1117 14965
2 nikkei2019_2_qual_a A. Sum of Two Integers -669 6310
3 diverta2019_a A. Consecutive Integers -551 6942
4 aising2019_a A. Bulletin Board -431 5397
5 arc112_a A. B = C -125 6924
6 abc177_c C. Sum of product of pairs 386 16095
7 abc245_c C. Choose Elements 403 11724
8 abc150_c C. Count Order 422 19251
9 agc029_a A. Irreversible operation 423 9985
10 code_festival_2017_qualc_b B. Similar Arrays 424 5973
11 abc159_d D. Banned K 496 14706
12 arc107_b B. Quadruple 633 5483
13 code_festival_qualA_c C. 2月29日 639 2425
14 abc178_c C. Ubiquity 653 13793
15 agc015_b B. Evilator 665 5826
16 jsc2021_d D. Nowhere P 743 3934
17 abc211_d D. Number of Shortest paths 755 9268
18 arc122_a A. Many Formulae 783 3607
19 abc250_d D. 250-like Number 797 7795
20 jsc2019_qual_b B. Kleene Inversion 801 6831
21 agc017_a A. Biscuits 815 6343
22 arc116_b B. Products of Min-Max 816 4685
23 dwango2015_prelims_2 B. ニコニコ文字列 831 2164
24 nikkei2019_2_qual_b B. Counting of Trees 841 5593
25 abc178_d D. Redistribution 875 10561
26 arc035_b B. アットコーダー王国のコンテスト事情 949 2438
27 agc031_a A. Colorful Subsequence 953 6002
28 abc172_d D. Sum of Divisors 963 11982
29 abc249_d D. Index Trio 983 6985
30 abc152_d D. Handstand 2 1045 8848
31 sumitb2019_e E. Colorful Hats 2 1176 4675
32 abc247_e E. Max Min 1256 5392
33 abc248_e E. K-colinear Line 1292 4399
34 abc214_d D. Sum of Maximum Weights 1341 6989
35 abc151_e E. Max-Min Sums 1344 5761
36 agc019_b B. Reverse and Compare 1357 3958
37 abc242_e E. (∀x∀) 1365 4483
38 abc037_d D. 経路 1377 2960
39 arc039_b B. 高橋幼稚園 1383 1786
40 arc113_d D. Sky Reflector 1389 2813
41 abc358_e E. Alphabet Tiles 1397 4723
42 hhkb2020_e E. Lamps 1399 2833
43 arc098_b D. Xor Sum 2 1404 7060
44 abc167_e E. Colorful Blocks 1442 5503
45 indeednow_2015_qualb_4 D. 高橋くんと数列 1445 1139
46 arc116_c C. Multiple Sequences 1468 3020
47 keyence2021_c C. Robot on Grid 1468 2368
48 abc122_d D. We Like AGC 1533 4548
49 abc129_e E. Sum Equals Xor 1547 4790
50 abc220_e E. Distance on Large Perfect Binary Tree 1593 3573
51 abc234_f F. Reordering 1596 3473
52 abc113_d D. Number of Amidakuji 1597 3547
53 abc036_d D. 塗り絵 1602 2594
54 arc071_b D. ### 1641 4255
55 abc162_e E. Sum of gcd of Tuples (Hard) 1662 5525
56 abc041_d D. 徒競走 1670 2325
57 keyence2019_d D. Double Landscape 1670 1894
58 abc130_e E. Common Subsequence 1676 4222
59 abc246_f F. typewriter 1677 3144
60 dwacon6th_prelims_b B. Fusing Slimes 1685 1822
61 abc201_e E. Xor Distances 1694 3598
62 abc110_d D. Factorization 1695 4694
63 abc169_f F. Knapsack for All Subsets 1698 3943
64 abc021_d D. 多重ループ 1704 3430
65 agc054_b B. Greedy Division 1710 1668
66 arc077_b D. 11 1715 4165
67 arc116_d D. I Wanna Win The Game 1718 2351
68 arc044_b B. 最短路問題 1744 1346
69 abc206_e E. Divide Both 1745 2884
70 abc023_c C. 収集王 1752 2443
71 abc154_f F. Many Many Paths 1775 3310
72 jsc2019_qual_c C. Cell Inversion 1790 1906
73 abc171_f F. Strivore 1795 3785
74 hhkb2020_d D. Squares 1804 1871
75 abc207_e E. Mod i 1820 3010
76 abc150_e E. Change a Little Bit 1851 2594
77 agc054_c C. Roughly Sorted 1863 1249
78 abc159_f F. Knapsack for All Segments 1876 3417
79 abc172_e E. NEQ 1880 3217
80 abc173_f F. Intervals on Tree 1892 3274
81 mujin_pc_2017_a A. Robot Racing 1900 1176
82 abc152_f F. Tree and Constraints 1965 2504
83 codefestival_2015_qualB_d D. Squares, Pieces and Coloring 1965 523
84 arc108_d D. AB 1987 1756
85 tenka1_2013_qualA_c C. 天下一二三パズル 1988 327
86 arc009_3 C. 高橋君、24歳 2015 937
87 abc003_4 D. AtCoder社の冬 2033 1524
88 abc266_g G. Yet Another RGB Sequence 2045 2067
89 abc217_g G. Groups 2047 1941
90 arc114_c C. Sequence Scores 2056 1609
91 code_festival_morning_med_d D. ぽよぽよ 2073 376
92 tenka1_2015_qualB_c C. 擬二等辺三角形 2087 340
93 arc107_d D. Number of Multisets 2099 2727
94 agc046_c C. Shift 2130 1100
95 arc036_c C. 偶然ジェネレータ 2139 576
96 soundhound2018_summer_qual_e E. + Graph 2164 890
97 arc067_c E. Grouping 2190 1653
98 arc137_d D. Prefix XORs 2191 1285
99 agc037_b B. RGB Balls 2202 1239
100 yahoo_procon2019_qual_f F. Pass 2253 906
101 arc037_d D. Chaotic Polygons 2258 353
102 discovery_2016_final_c C. 特別講演「括弧列と塗り分け」 2266 230
103 abc209_f F. Deforestation 2307 1383
104 exawizards2019_e E. Black or White 2309 798
105 arc115_d D. Odd Degree 2325 1024
106 agc036_c C. GP 2 2357 1022
107 arc115_e E. LEQ and NEQ 2363 1444
108 arc048_c C. 足の多い高橋君 2390 435
109 diverta2019_e E. XOR Partitioning 2423 878
110 agc009_c C. Division into Two 2437 1607
111 abc240_g G. Teleporting Takahashi 2462 1058
112 arc102_c E. Stop. Otherwise... 2484 1488
113 agc050_c C. Block Game 2528 507
114 codefestival_2016_final_f F. Road of the King 2539 854
115 diverta2019_2_e E. Balanced Piles 2543 496
116 abl_f F. Heights and Pairs 2545 480
117 arc093_c E. Bichrome Spanning Tree 2551 1093
118 abc200_f F. Minflip Summation 2556 759
119 agc049_d D. Convex Sequence 2602 710
120 dwacon6th_prelims_c C. Cookie Distribution 2618 846
121 arc121_e E. Directed Tree 2645 1093
122 arc108_f F. Paint Tree 2646 1040
123 arc065_d F. Shuffling 2652 1045
124 arc062_c E. Building Cubes with AtCoDeer 2655 780
125 arc112_e E. Cigar Box 2659 868
126 agc030_d D. Inversion Sum 2712 1689
127 caddi2018_d F. Square 2723 291
128 arc082_c E. ConvexScore 2729 915
129 aising2020_f F. Two Snuke 2742 472
130 arc106_f F. Figures 2755 960
131 tokiomarine2020_e E. O(rand) 2756 700
132 agc045_c C. Range Set 2758 689
133 agc012_d D. Colorful Balls 2760 1282
134 nomura2020_d D. Urban Planning 2810 508
135 arc046_d D. うさぎとマス目 2852 145
136 arc025_4 D. コンセント 2863 76
137 arc090_d F. Number of Digits 2891 511
138 tenka1_2019_f F. Banned X 2891 446
139 abc214_g G. Three Permutations 2893 696
140 abc202_f F. Integer Convex Hull 2905 351
141 agc046_d D. Secret Passage 2911 603
142 cf17_final_g G. Mancala 2931 346
143 agc052_c C. Nondivisible Prefix Sums 2936 531
144 code_festival_2017_qualb_e E. Popping Balls 2937 337
145 arc121_f F. Logical Operations on Tree 2940 635
146 agc005_d D. ~K Perm Counting 2943 1987
147 arc064_d F. Rotated Palindromes 2949 840
148 keyence2019_f F. Paper Cutting 2957 309
149 arc110_e E. Shorten ABC 2973 579
150 agc024_e E. Sequence Growing Hard 3001 1104
151 dwacon6th_prelims_e E. Span Covering 3012 369
152 arc057_d D. 全域木 3019 169
153 arc068_d F. Solitaire 3042 964
154 agc013_d D. Piling Up 3089 1519
155 arc020_4 D. お菓子の国の旅行 3133 100
156 arc061_d F. Card Game for Three 3154 886
157 arc087_d F. Squirrel Migration 3252 674
158 arc084_d F. XorShift 3397 390
159 keyence2020_f F. Monochromization 3402 96
160 agc009_d D. Uninity 3404 1032
161 code_festival_2017_quala_e E. Modern Painting 3415 177
162 agc005_f F. Many Easy Problems 3440 1065
163 tenka1_2018_f F. Circular 3493 133
164 agc015_e E. Mr.Aoki Incubator 3571 825
165 hitachi2020_f F. Preserve Diameter 3694 181
166 arc089_d F. ColoringBalls 3782 405
167 agc021_e E. Ball Eat Chameleons 3944 848
168 agc018_e E. Sightseeing Plan 3953 533
169 typical90_ap 042. Multiple of 9（★4） null 4656
170 agc001_e E. BBQ Hard null 2662
171 typical90_ch 086. Snuke's Favorite Arrays（★5） null 2089
172 typical90_cb 080. Let's Share Bit（★6） null 1379
173 ddcc2018_qual_c C. チップ・ストーリー　～白銀編～ null 964
174 joi2016ho_b B. スタンプラリー 2 (Collecting Stamps 2) null 902
175 cf16_exhibition_final_a A. 1D Matching null 859
176 joisc2007_anagra anagram. アナグラム (Anagram) null 761
177 chokudai_S001_k K. 辞書順で何番目？ null 734
178 typical90_bm 065. RGB Balls 2（★7） null 700
179 past202010_k K. 転倒数 null 576
180 joisc2011_banner banner. 横断幕 (Banner) null 555
181 tkppc4_2_d D. 新入生歓迎数列 2 null 302
182 arc086_d F. Shift and Decrement null 238
183 wtf19_b B. Multiple of Nine null 226
184 kupc2014_d D. ハミング null 205
185 cf16_exhibition_final_j J. 123 Pairs null 191
186 typical90_cl 090. Tenkei90's Last Problem（★7） null 178
187 pakencamp_2019_day4_e E. IOI のために null 143
188 k2pc001_h2 B. 虫歯(Cavity) null 131
189 donuts_live2014_4 D. サバゲー null 130
190 ttpc2019_g G. Palindromic Love Letter null 104
191 dwacon6th_final_b B. Harvest Festival null 92
192 kupc2019_k K. One or All null 92
193 wupc2019_j J. Color Ball null 77
194 tenka1_2012_final_b B. よんてん null 58
195 qupc2018_i I. Buffalo null 47