Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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Problems

#	Name
1118C	Palindromic Matrix constructive algorithms, implementation	1700	x5796
1118B	Tanya and Candies implementation	1200	x12260
1118A	Water Buying math	800	x20221
1117G	Recursive Queries data structures	2500	x706
1117F	Crisp String bitmasks, dp	2500	x587
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1534
1117D	Magic Gems dp, math, matrices	2100	x4362
1117C	Magic Ship binary search	1900	x7172
1117B	Emotes greedy, math, sortings	1000	x14494
1117A	Best Subsegment implementation, math	1100	x11046
1116D6	Hessenberg matrix		x79
1116D5	Creeper		x149
1116D4	TIE fighter		x169
1116D3	X-wing fighter		x203
1116D2	Pattern of increasing blocks		x233
1116D1	Block diagonal matrix		x275
1116C3	``Is the number of ones divisible by 3?'' oracle		x184
1116C2	``Is the bit string periodic?'' oracle		x186
1116C1	Alternating bits oracle		x264
1116B2	Not A, not B or not C?		x59
1116B1	Distinguish three-qubit states		x133
1116A2	Generate equal superposition of four basis states		x180
1116A1	Generate state \|00⟩ + \|01⟩ + \|10⟩		x323
1115U3	Block unitary *special problem	1700	x197
1115U2	Chessboard unitary *special problem	1600	x234
1115U1	Anti-diagonal unitary *special problem	1500	x256
1115G3	Palindrome checker oracle *special problem	1600	x231
1115G2	OR oracle *special problem	1600	x312
1115G1	AND oracle *special problem	1100	x389
1114F	Please, another Queries on Array? bitmasks, data structures, divide and conquer, math, number theory	2400	x2007
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2885
1114D	Flood Fill dp	1900	x6859
1114C	Trailing Loves (or L'oeufs?) brute force, implementation, math, number theory	1700	x7433
1114B	Yet Another Array Partitioning Task constructive algorithms, greedy, sortings	1500	x9002
1114A	Got Any Grapes? brute force, greedy, implementation	800	x18816
1113B	Sasha and Magnetic Machines greedy, number theory	1300	x7748
1113A	Sasha and His Trip dp, greedy, math	900	x17384
1111E	Tree data structures, dfs and similar, dp, graphs, trees	2500	x945
1111D	Destroy the Colony combinatorics, dp, math	2600	x973
1111C	Creative Snap binary search, brute force, divide and conquer, math	1700	x6292
1111B	Average Superhero Gang Power brute force, implementation, math	1700	x6304
1111A	Superhero Transformation implementation, strings	1000	x16917
1110H	Modest Substrings dp, strings	3500	x283
1110G	Tree-Tac-Toe constructive algorithms, games, trees	3100	x630
1110F	Nearest Leaf data structures, trees	2600	x1762
1110E	Magic Stones constructive algorithms, math, sortings	2200	x4193
1110D	Jongmah dp	2200	x3589
1110C	Meaningless Operations constructive algorithms, math, number theory	1500	x9429
1110B	Tape greedy, sortings	1400	x11761
1110A	Parity math	900	x15126
1109F	Sasha and Algorithm of Silence's Sounds data structures, trees	3200	x293
1109E	Sasha and a Very Easy Test data structures, number theory	2700	x552
1109D	Sasha and Interesting Fact from Graph Theory brute force, combinatorics, dp, math, trees	2400	x1346
1109C	Sasha and a Patient Friend binary search, data structures, implementation	2800	x256
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4366
1109A	Sasha and a Bit of Relax dp, implementation	1600	x8531
1108F	MST Unification binary search, dsu, graphs, greedy	2100	x2971
1108E2	Array and Segments (Hard version) data structures, implementation	2100	x2216
1108E1	Array and Segments (Easy version) brute force, greedy, implementation	1800	x4559
1108D	Diverse Garland constructive algorithms, dp, greedy	1400	x15322
1108C	Nice Garland brute force, greedy, math	1300	x12012
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x23335
1108A	Two distinct points implementation	800	x21939
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x1073
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x808
1107E	Vasya and Binary String dp	2400	x2337
1107D	Compression dp, implementation, math, number theory	1800	x3739
1107C	Brutality greedy, sortings, two pointers	1300	x10023
1107B	Digital root math, number theory	1000	x16083
1107A	Digits Sequence Dividing greedy, strings	900	x12082
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x990
1106E	Lunar New Year and Red Envelopes data structures, dp	2100	x2587
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x14945
1106C	Lunar New Year and Number Division greedy, implementation, math, sortings	900	x14741
1106B	Lunar New Year and Food Ordering data structures, implementation	1500	x6767
1106A	Lunar New Year and Cross Counting implementation	800	x12373
1105E	Helping Hiasat bitmasks, brute force, dp, meet-in-the-middle	2200	x1659
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x4153
1105C	Ayoub and Lost Array combinatorics, dp, math	1500	x10449
1105B	Zuhair and Strings brute force, implementation, strings	1100	x9929
1105A	Salem and Sticks brute force, implementation	1100	x10998
1104B	Game with string data structures, implementation, math	1200	x15034
1104A	Splitting into digits constructive algorithms, implementation, math	800	x15445
1103E	Radix sum fft, math, number theory	3400	x234
1103D	Professional layer bitmasks, dp	3100	x414
1103C	Johnny Solving constructive algorithms, dfs and similar, graphs, math	2700	x855
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3297
1103A	Grid game constructive algorithms, implementation	1400	x9822
1102F	Elongated Matrix binary search, bitmasks, brute force, dp, graphs	2000	x2031
1102E	Monotonic Renumeration combinatorics, sortings	1700	x6060
1102D	Balanced Ternary String greedy, strings	1500	x8012
1102C	Doors Breaking and Repairing games	1200	x13152
1102B	Array K-Coloring greedy, sortings	1400	x10454
1102A	Integer Sequence Dividing math	800	x24540
1101G	(Zero XOR Subset)-less math, matrices	2300	x1745
1101F	Trucks and Cities binary search, dp	2400	x1371
1101E	Polycarp's New Job implementation	1500	x7954
1101D	GCD Counting data structures, dfs and similar, dp, number theory, trees	2000	x4744
1101C	Division and Union sortings	1500	x8215
1101B	Accordion greedy, implementation	1300	x10633