Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
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Problems

#	Name
1118C	Palindromic Matrix constructive algorithms, implementation	1700	x5799
1118B	Tanya and Candies implementation	1200	x12262
1118A	Water Buying math	800	x20226
1117G	Recursive Queries data structures	2500	x709
1117F	Crisp String bitmasks, dp	2500	x588
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1534
1117D	Magic Gems dp, math, matrices	2100	x4371
1117C	Magic Ship binary search	1900	x7180
1117B	Emotes greedy, math, sortings	1000	x14501
1117A	Best Subsegment implementation, math	1100	x11049
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	x2010
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2890
1114D	Flood Fill dp	1900	x6861
1114C	Trailing Loves (or L'oeufs?) brute force, implementation, math, number theory	1700	x7435
1114B	Yet Another Array Partitioning Task constructive algorithms, greedy, sortings	1500	x9005
1114A	Got Any Grapes? brute force, greedy, implementation	800	x18821
1113B	Sasha and Magnetic Machines greedy, number theory	1300	x7750
1113A	Sasha and His Trip dp, greedy, math	900	x17394
1111E	Tree data structures, dfs and similar, dp, graphs, trees	2500	x946
1111D	Destroy the Colony combinatorics, dp, math	2600	x973
1111C	Creative Snap binary search, brute force, divide and conquer, math	1700	x6293
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	x1766
1110E	Magic Stones constructive algorithms, math, sortings	2200	x4195
1110D	Jongmah dp	2200	x3590
1110C	Meaningless Operations constructive algorithms, math, number theory	1500	x9431
1110B	Tape greedy, sortings	1400	x11772
1110A	Parity math	900	x15128
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	x554
1109D	Sasha and Interesting Fact from Graph Theory brute force, combinatorics, dp, math, trees	2400	x1348
1109C	Sasha and a Patient Friend binary search, data structures, implementation	2800	x257
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4372
1109A	Sasha and a Bit of Relax dp, implementation	1600	x8536
1108F	MST Unification binary search, dsu, graphs, greedy	2100	x2973
1108E2	Array and Segments (Hard version) data structures, implementation	2100	x2219
1108E1	Array and Segments (Easy version) brute force, greedy, implementation	1800	x4565
1108D	Diverse Garland constructive algorithms, dp, greedy	1400	x15332
1108C	Nice Garland brute force, greedy, math	1300	x12016
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x23342
1108A	Two distinct points implementation	800	x21976
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	x809
1107E	Vasya and Binary String dp	2400	x2337
1107D	Compression dp, implementation, math, number theory	1800	x3739
1107C	Brutality greedy, sortings, two pointers	1300	x10024
1107B	Digital root math, number theory	1000	x16092
1107A	Digits Sequence Dividing greedy, strings	900	x12083
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	x2592
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x14959
1106C	Lunar New Year and Number Division greedy, implementation, math, sortings	900	x14744
1106B	Lunar New Year and Food Ordering data structures, implementation	1500	x6768
1106A	Lunar New Year and Cross Counting implementation	800	x12374
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	x4154
1105C	Ayoub and Lost Array combinatorics, dp, math	1500	x10452
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	x15036
1104A	Splitting into digits constructive algorithms, implementation, math	800	x15447
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	x858
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3298
1103A	Grid game constructive algorithms, implementation	1400	x9825
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	x8013
1102C	Doors Breaking and Repairing games	1200	x13154
1102B	Array K-Coloring greedy, sortings	1400	x10455
1102A	Integer Sequence Dividing math	800	x24562
1101G	(Zero XOR Subset)-less math, matrices	2300	x1748
1101F	Trucks and Cities binary search, dp	2400	x1373
1101E	Polycarp's New Job implementation	1500	x7954
1101D	GCD Counting data structures, dfs and similar, dp, number theory, trees	2000	x4745
1101C	Division and Union sortings	1500	x8221
1101B	Accordion greedy, implementation	1300	x10640