Mathematics:数え上げ

# ID Name Difficulty Solver
1 abc222_b C. Failing Grade -1117 15643
2 nikkei2019_2_qual_a A. Sum of Two Integers -669 6340
3 diverta2019_a A. Consecutive Integers -551 6970
4 aising2019_a A. Bulletin Board -431 5440
5 arc112_a A. B = C -125 6981
6 abc177_c C. Sum of product of pairs 386 16263
7 abc245_c E. Choose Elements 403 12086
8 abc150_c C. Count Order 422 19782
9 agc029_a A. Irreversible operation 423 10168
10 code_festival_2017_qualc_b B. Similar Arrays 424 6040
11 abc159_d D. Banned K 496 14873
12 arc107_b B. Quadruple 633 5521
13 code_festival_qualA_c C. 2月29日 639 2435
14 abc178_c C. Ubiquity 653 13941
15 agc015_b B. Evilator 665 5888
16 jsc2021_d D. Nowhere P 743 3969
17 abc211_d D. Number of Shortest paths 755 9492
18 arc122_a A. Many Formulae 783 3653
19 abc250_d G. 250-like Number 797 8065
20 jsc2019_qual_b B. Kleene Inversion 801 6927
21 agc017_a A. Biscuits 815 6415
22 arc116_b B. Products of Min-Max 816 4737
23 dwango2015_prelims_2 B. ニコニコ文字列 831 2175
24 nikkei2019_2_qual_b B. Counting of Trees 841 5626
25 abc178_d D. Redistribution 875 10670
26 arc035_b B. アットコーダー王国のコンテスト事情 949 2453
27 agc031_a A. Colorful Subsequence 953 6039
28 abc172_d D. Sum of Divisors 963 12205
29 abc249_d G. Index Trio 983 7152
30 abc152_d D. Handstand 2 1045 8944
31 sumitb2019_e E. Colorful Hats 2 1176 4711
32 abc247_e H. Max Min 1256 5557
33 abc248_e H. K-colinear Line 1292 4537
34 abc214_d G. Sum of Maximum Weights 1341 7330
35 abc151_e E. Max-Min Sums 1344 5886
36 agc019_b B. Reverse and Compare 1357 3981
37 abc242_e H. (∀x∀) 1365 4596
38 abc037_d D. 経路 1377 2986
39 arc039_b B. 高橋幼稚園 1383 1798
40 arc113_d D. Sky Reflector 1389 2855
41 abc358_e H. Alphabet Tiles 1397 4910
42 hhkb2020_e E. Lamps 1399 2847
43 arc098_b D. Xor Sum 2 1404 7250
44 abc167_e E. Colorful Blocks 1442 5607
45 indeednow_2015_qualb_4 D. 高橋くんと数列 1445 1144
46 arc116_c C. Multiple Sequences 1468 3090
47 keyence2021_c C. Robot on Grid 1468 2381
48 abc122_d D. We Like AGC 1533 4627
49 abc129_e E. Sum Equals Xor 1547 4869
50 abc220_e H. Distance on Large Perfect Binary Tree 1593 3653
51 abc234_f I. Reordering 1596 3599
52 abc113_d D. Number of Amidakuji 1597 3583
53 abc036_d D. 塗り絵 1602 2654
54 arc071_b D. ### 1641 4319
55 abc162_e E. Sum of gcd of Tuples (Hard) 1662 5658
56 abc041_d D. 徒競走 1670 2407
57 keyence2019_d D. Double Landscape 1670 1901
58 abc130_e E. Common Subsequence 1676 4338
59 abc246_f I. typewriter 1677 3271
60 dwacon6th_prelims_b B. Fusing Slimes 1685 1830
61 abc201_e E. Xor Distances 1694 3687
62 abc110_d D. Factorization 1695 4834
63 abc169_f F. Knapsack for All Subsets 1698 4032
64 abc021_d D. 多重ループ 1704 3472
65 agc054_b B. Greedy Division 1710 1720
66 arc077_b D. 11 1715 4233
67 arc116_d D. I Wanna Win The Game 1718 2389
68 arc044_b B. 最短路問題 1744 1358
69 abc206_e E. Divide Both 1745 2955
70 abc023_c C. 収集王 1752 2470
71 abc154_f F. Many Many Paths 1775 3387
72 jsc2019_qual_c C. Cell Inversion 1790 1915
73 abc171_f F. Strivore 1795 3922
74 hhkb2020_d D. Squares 1804 1883
75 abc207_e E. Mod i 1820 3088
76 abc150_e E. Change a Little Bit 1851 2642
77 agc054_c C. Roughly Sorted 1863 1268
78 abc159_f F. Knapsack for All Segments 1876 3567
79 abc172_e E. NEQ 1880 3319
80 abc173_f F. Intervals on Tree 1892 3349
81 mujin_pc_2017_a A. Robot Racing 1900 1181
82 abc152_f F. Tree and Constraints 1965 2590
83 codefestival_2015_qualB_d D. Squares, Pieces and Coloring 1965 532
84 arc108_d D. AB 1987 1791
85 tenka1_2013_qualA_c C. 天下一二三パズル 1988 330
86 arc009_3 C. 高橋君、24歳 2015 947
87 abc003_4 D. AtCoder社の冬 2033 1556
88 abc266_g G. Yet Another RGB Sequence 2045 2147
89 abc217_g G. Groups 2047 1985
90 arc114_c C. Sequence Scores 2056 1633
91 code_festival_morning_med_d D. ぽよぽよ 2073 378
92 tenka1_2015_qualB_c C. 擬二等辺三角形 2087 343
93 arc107_d D. Number of Multisets 2099 2807
94 agc046_c C. Shift 2130 1123
95 arc036_c C. 偶然ジェネレータ 2139 585
96 soundhound2018_summer_qual_e E. + Graph 2164 900
97 arc067_c E. Grouping 2190 1671
98 arc137_d D. Prefix XORs 2191 1332
99 agc037_b B. RGB Balls 2202 1248
100 yahoo_procon2019_qual_f F. Pass 2253 913
101 arc037_d D. Chaotic Polygons 2258 360
102 discovery_2016_final_c C. 特別講演「括弧列と塗り分け」 2266 232
103 abc209_f F. Deforestation 2307 1428
104 exawizards2019_e E. Black or White 2309 804
105 arc115_d D. Odd Degree 2325 1058
106 agc036_c C. GP 2 2357 1035
107 arc115_e E. LEQ and NEQ 2363 1496
108 arc048_c C. 足の多い高橋君 2390 439
109 diverta2019_e E. XOR Partitioning 2423 886
110 agc009_c C. Division into Two 2437 1651
111 abc240_g G. Teleporting Takahashi 2462 1085
112 arc102_c E. Stop. Otherwise... 2484 1520
113 agc050_c C. Block Game 2528 524
114 codefestival_2016_final_f F. Road of the King 2539 879
115 diverta2019_2_e E. Balanced Piles 2543 511
116 abl_f F. Heights and Pairs 2545 487
117 arc093_c E. Bichrome Spanning Tree 2551 1112
118 abc200_f F. Minflip Summation 2556 783
119 agc049_d D. Convex Sequence 2602 739
120 dwacon6th_prelims_c C. Cookie Distribution 2618 884
121 arc121_e E. Directed Tree 2645 1121
122 arc108_f F. Paint Tree 2646 1062
123 arc065_d F. Shuffling 2652 1063
124 arc062_c E. Building Cubes with AtCoDeer 2655 787
125 arc112_e E. Cigar Box 2659 890
126 agc030_d D. Inversion Sum 2712 1745
127 caddi2018_d F. Square 2723 292
128 arc082_c E. ConvexScore 2729 943
129 aising2020_f F. Two Snuke 2742 476
130 arc106_f F. Figures 2755 987
131 tokiomarine2020_e E. O(rand) 2756 727
132 agc045_c C. Range Set 2758 715
133 agc012_d D. Colorful Balls 2760 1309
134 nomura2020_d D. Urban Planning 2810 512
135 arc046_d D. うさぎとマス目 2852 146
136 arc025_4 D. コンセント 2863 80
137 arc090_d F. Number of Digits 2891 513
138 tenka1_2019_f F. Banned X 2891 458
139 abc214_g G. Three Permutations 2893 745
140 abc202_f F. Integer Convex Hull 2905 361
141 agc046_d D. Secret Passage 2911 623
142 cf17_final_g G. Mancala 2931 358
143 agc052_c C. Nondivisible Prefix Sums 2936 547
144 code_festival_2017_qualb_e E. Popping Balls 2937 340
145 arc121_f F. Logical Operations on Tree 2940 664
146 agc005_d D. ~K Perm Counting 2943 2061
147 arc064_d F. Rotated Palindromes 2949 889
148 keyence2019_f F. Paper Cutting 2957 316
149 arc110_e E. Shorten ABC 2973 595
150 agc024_e E. Sequence Growing Hard 3001 1157
151 dwacon6th_prelims_e E. Span Covering 3012 387
152 arc057_d D. 全域木 3019 178
153 arc068_d F. Solitaire 3042 992
154 agc013_d D. Piling Up 3089 1628
155 arc020_4 D. お菓子の国の旅行 3133 100
156 arc061_d F. Card Game for Three 3154 901
157 arc087_d F. Squirrel Migration 3252 690
158 arc084_d F. XorShift 3397 392
159 keyence2020_f F. Monochromization 3402 96
160 agc009_d D. Uninity 3404 1059
161 code_festival_2017_quala_e E. Modern Painting 3415 181
162 agc005_f F. Many Easy Problems 3440 1103
163 tenka1_2018_f F. Circular 3493 133
164 agc015_e E. Mr.Aoki Incubator 3571 848
165 hitachi2020_f F. Preserve Diameter 3694 183
166 arc089_d F. ColoringBalls 3782 409
167 agc021_e E. Ball Eat Chameleons 3944 860
168 agc018_e E. Sightseeing Plan 3953 624
169 typical90_ap 042. Multiple of 9（★4） null 4793
170 agc001_e E. BBQ Hard null 2749
171 typical90_ch 086. Snuke's Favorite Arrays（★5） null 2150
172 typical90_cb 080. Let's Share Bit（★6） null 1420
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 918
175 cf16_exhibition_final_a A. 1D Matching null 864
176 joisc2007_anagra anagram. アナグラム (Anagram) null 777
177 chokudai_S001_k K. 辞書順で何番目？ null 738
178 typical90_bm 065. RGB Balls 2（★7） null 727
179 past202010_k K. 転倒数 null 587
180 joisc2011_banner banner. 横断幕 (Banner) null 565
181 tkppc4_2_d D. 新入生歓迎数列 2 null 302
182 arc086_d F. Shift and Decrement null 243
183 wtf19_b B. Multiple of Nine null 227
184 kupc2014_d D. ハミング null 205
185 typical90_cl 090. Tenkei90's Last Problem（★7） null 191
186 cf16_exhibition_final_j J. 123 Pairs null 191
187 pakencamp_2019_day4_e E. IOI のために null 143
188 donuts_live2014_4 D. サバゲー null 132
189 k2pc001_h2 B. 虫歯(Cavity) null 131
190 wupc2019_j J. Color Ball null 105
191 ttpc2019_g G. Palindromic Love Letter null 104
192 kupc2019_k K. One or All null 95
193 dwacon6th_final_b B. Harvest Festival null 92
194 tenka1_2012_final_b B. よんてん null 58
195 qupc2018_i I. Buffalo null 48