作問一覧

自分が原案を担当した問題をまとめた。(注：ABC は原案担当と準備担当が分かれているため、自分が準備者でない問題も存在する。)

観賞用ヒント：表の 1 行目を押すと各列の昇順にソートできます。

最終更新日：2024 年 12 月 31 日

Contest	Index	Name	Difficulty
ABC208	ABC-A	Rolling Dice	28
ABC208	ABC-B	Factorial Yen Coin	51
ABC208	ABC-C	Fair Candy Distribution	142
ABC208	ABC-E	Digit Products	2024
ABC208	ABC-F	Cumulative Sum	2772
ABC212	ABC-D	Querying Multiset	775
ABC212	ABC-H	Nim Counting	2741
ABC213	ABC-A	Bitwise Exclusive Or	33
ABC213	ABC-B	Booby Prize	26
ABC213	ABC-C	Reorder Cards	481
ABC213	ABC-D	Takahashi Tour	710
ABC213	ABC-F	Common Prefixes	2215
ABC213	ABC-G	Connectivity 2	2663
ABC213	ABC-H	Stroll	2806
ABC215	ABC-H	Cabbage Master	3101
ABC217	ABC-A	Lexicographic Order	21
ABC217	ABC-C	Inverse of Permutation	49
ABC217	ABC-D	Cutting Woods	802
ABC217	ABC-E	Sorting Queries	986
ABC217	ABC-G	Groups	2047
ABC217	ABC-H	Snuketoon	3112
ABC219	ABC-C	Neo-lexicographic Ordering	260
ABC220	ABC-H	Security Camera	3047
ABC221	ABC-D	Online games	832
ABC222	ABC-B	Failing Grade	9
ABC222	ABC-D	Between Two Arrays	865
ABC222	ABC-E	Red and Blue Tree	1491
ABC222	ABC-F	Expensive Expense	1934
ABC222	ABC-H	Beautiful Binary Tree	3477
ABC224	ABC-D	8 Puzzle on Graph	1376
ABC225	ABC-D	Play Train	778
ABC226	ABC-B	Counting Arrays	192
ABC226	ABC-D	Teleportation	706
ABC226	ABC-F	Score of Permutations	2086
ABC226	ABC-H	Random Kth Max	2813
ABC228	ABC-D	Linear Probing	1035
ABC230	ABC-D	Destroyer Takahashi	963
ABC230	ABC-H	Bullion	3528
ABC232	ABC-H	King's Tour	2780
ABC235	ABC-C	The Kth Time Query	249
ABC235	ABC-D	Multiply and Rotate	862
ABC235	ABC-E	MST + 1	1304
ABC235	ABC-G	Gardens	2462
ABC236	ABC-C	Route Map	80
ABC239	ABC-B	Integer Division	57
ABC239	ABC-F	Construct Highway	1959
ABC239	ABC-G	Builder Takahashi	2215
ABC239	ABC-H	Dice Product 2	2686
ABC241	ABC-H	Card Deck Score	2881
ABC243	ABC-H	Builder Takahashi (Enhanced version)	3884
ABC244	ABC-B	Go Straight and Turn Right	30
ABC244	ABC-E	King Bombee	1125
ABC247	ABC-C	1 2 1 3 1 2 1	149
ABC247	ABC-H	Rearranging Problem	2664
ABC251	ABC-B	At Most 3 (Judge ver.)	181
ABC251	ABC-C	Poem Online Judge	246
ABC251	ABC-D	At Most 3 (Contestant ver.)	1463
ABC251	ABC-H	Fill Triangle	3108
ABC252	ABC-E	Road Reduction	1294
ABC252	ABC-H	K-th beautiful Necklace	3015
ABC256	ABC-C	Filling 3x3 array	541
ABC256	ABC-H	I like Query Problem	2531
ABC260	ABC-C	Changing Jewels	413
ABC260	ABC-E	At Least One	1692
ABC260	ABC-F	Find 4-cycle	1995
ABC260	ABC-G	Scalene Triangle Area	2339
ABC260	ABC-H	Colorfulness	3339
ABC264	ABC-D	"redocta".swap(i,i+1)	414
ABC265	ABC-C	Belt Conveyor	212
ABC265	ABC-H	No-capture Lance Game	3319
ABC269	ABC-E	Last Rook	1030
ABC269	ABC-G	Reversible Cards 2	2440
ABC269	ABC-H	Antichain	3178
ABC270	ABC-H	add 1	3159
ABC272	ABC-D	Root M Leaper	804
ABC272	ABC-G	Yet Another mod M	2187
ABC273	ABC-H	Inv(0,1)ving Insert(1,0)n	3598
ABC274	ABC-A	Batting Average	23
ABC274	ABC-H	XOR Sum of Arrays	3191
ABC277	ABC-C	Ladder Takahashi	540
ABC278	ABC-G	Generalized Subtraction Game	2533
ABC278	ABC-H	make 1	3768
ABC280	ABC-H	Substring Sort	3307
ABC281	ABC-H	Alchemy	3180
ABC284	ABC-B	Multi Test Cases	14
ABC284	ABC-C	Count Connected Components	193
ABC284	ABC-H	Count Unlabeled Graphs	3125
ABC289	ABC-H	Trio	3246
ABC291	ABC-A	camel Case	8
ABC291	ABC-B	Trimmed Mean	32
ABC291	ABC-H	Balanced Tree	2097
ABC294	ABC-B	ASCII Art	25
ABC294	ABC-D	Bank	385
ABC294	ABC-F	Sugar Water 2	1891
ABC296	ABC-F	Simultaneous Swap	1811
ABC297	ABC-C	PC on the Table	96
ABC297	ABC-D	Count Subtractions	273
ABC298	ABC-D	Writing a Numeral	882
ABC298	ABC-E	Unfair Sugoroku	1300
ABC299	ABC-G	Minimum Permutation	2066
ABC300	ABC-A	N-choice question	8
ABC300	ABC-B	Same Map in the RPG World	353
ABC300	ABC-C	Cross	534
ABC300	ABC-D	AABCC	908
ABC300	ABC-E	Dice Product 3	1354
ABC300	ABC-G	P-smooth number	2343
ABC300	ABC-H	Fibonacci: Revisited	3209
ABC301	ABC-D	Bitmask	885
ABC301	ABC-E	Pac-Takahashi	1673
ABC301	ABC-G	Worst Picture	3262
ABC302	ABC-A	Attack	24
ABC302	ABC-B	Find snuke	352
ABC302	ABC-C	Almost Equal	469
ABC302	ABC-H	Ball Collector	2407
ABC305	ABC-B	ABCDEFG	23
ABC305	ABC-C	Snuke the Cookie Picker	159
ABC305	ABC-D	Sleep Log	671
ABC305	ABC-E	Art Gallery on Graph	1158
ABC305	ABC-F	Dungeon Explore	1420
ABC305	ABC-H	Shojin	3344
ABC306	ABC-B	Base 2	0
ABC307	ABC-H	Marquee	2754
ABC308	ABC-D	Snuke Maze	619
ABC311	ABC-E	Defect-free Squares	1293
ABC311	ABC-H	Many Illumination Plans	3605
ABC312	ABC-H	snukesnuke	2477
ABC315	ABC-H	Typical Convolution Problem	2807
ABC317	ABC-G	Rearranging	2649
ABC317	ABC-H	Walk	3426
ABC318	ABC-G	Typical Path Problem	2260
ABC319	ABC-A	Legendary Players	10
ABC319	ABC-F	Fighter Takahashi	2480
ABC322	ABC-A	First ABC 2	12
ABC322	ABC-B	Prefix and Suffix	54
ABC322	ABC-D	Polyomino	1310
ABC322	ABC-F	Vacation Query	1806
ABC327	ABC-D	Good Tuple Problem	709
ABC327	ABC-G	Many Good Tuple Problems	2968
ABC331	ABC-E	Set Meal	1018
ABC331	ABC-F	Palindrome Query	1666
ABC336	ABC-B	CTZ	27
ABC336	ABC-C	Even Digits	343
ABC336	ABC-E	Digit Sum Divisible	1538
ABC336	ABC-G	16 Integers	3138
ABC340	ABC-C	Divide and Divide	528
ABC340	ABC-F	S = 1	1516
ABC340	ABC-G	Leaf Color	2401
ABC342	ABC-A	Yay!	31
ABC342	ABC-C	Many Replacement	505
ABC345	ABC-B	Integer Division Returns	91
ABC345	ABC-F	Many Lamps	2157
ABC345	ABC-G	Sugoroku 5	3343
ABC347	ABC-G	Grid Coloring 2	2876
ABC351	ABC-A	The bottom of the ninth	11
ABC351	ABC-B	Spot the Difference	34
ABC351	ABC-G	Hash on Tree	2920
ABC357	ABC-B	Uppercase and Lowercase	26
ABC357	ABC-E	Reachability in Functional Graph	1295
ABC357	ABC-G	Stair-like Grid	3159
ABC363	ABC-D	Palindromic Number	975
ABC363	ABC-F	Palindromic Expression	1913
ABC363	ABC-G	Dynamic Scheduling	3358
ABC370	ABC-E	Avoid K Partition	1453
ABC370	ABC-G	Divisible by 3	3428
ABC376	ABC-G	Treasure Hunting	2858
AGC070	AGC-A	Multiples in the String	2006
AGC070	AGC-B	Odd Namori	3217
AGC070	AGC-C	No Streak	2983
AGC070	AGC-D	2D Solitaire	4211
AGC070	AGC-E	Remove 2K+1 Edges	9999
ARC139	ARC-A	Trailing Zeros	599
ARC139	ARC-E	Wazir	3222
ARC148	ARC-A	mod M	656
ARC148	ARC-B	dp	975
ARC148	ARC-C	Lights Out on Tree	1488
ARC148	ARC-D	mod M Game	2009
ARC148	ARC-E	≥ K	2785
ARC148	ARC-F	998244353 → 1000000007	3621
ARC160	ARC-A	Reverse and Count	1275
ARC160	ARC-E	Make Biconnected	3284
ARC160	ARC-F	Count Sorted Arrays	3202
ARC171	ARC-A	No Attacking	614
ARC171	ARC-B	Chmax	1374
ARC171	ARC-C	Swap on Tree	2244
ARC171	ARC-D	Rolling Hash	2377
ARC171	ARC-E	Rookhopper's Tour	3034
ARC171	ARC-F	Both Reversible	3730
ARC185	ARC-A	mod M Game 2	1042
ARC185	ARC-B	+1 and -1	1332
ARC185	ARC-C	Sum of Three Integers	2242
ARC185	ARC-D	Random Walk on Tree	2649
ARC185	ARC-E	Adjacent GCD	2185
yuki	yuki	T-block Tiling	400
yuki	yuki	Almost Palindrome	2000
yuki	yuki	Rider's Triangle	2000
yuki	yuki	Silver Tour	2800
yuki	yuki	🐙🐄🌲	3600
yuki	yuki	Remix Sum	0
yuki	yuki	Paint and Fill	0
yuki	yuki	Differential Equation (Enhanced version)	0
yuki	yuki	Optimal Run Length Encoding	0