Problemset - Codeforces

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Codeforces Round 952 (Div. 4)
05:21:28
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Problems

#	Name
1119A	Ilya and a Colorful Walk greedy, implementation	1100	x10499
1118F2	Tree Cutting (Hard Version) combinatorics, dfs and similar, dp, trees	2700	x519
1118F1	Tree Cutting (Easy Version) dfs and similar, trees	1800	x5738
1118E	Yet Another Ball Problem constructive algorithms, implementation	1700	x4064
1118D2	Coffee and Coursework (Hard Version) binary search, greedy	1700	x6092
1118D1	Coffee and Coursework (Easy version) brute force, greedy	1700	x5557
1118C	Palindromic Matrix constructive algorithms, implementation	1700	x5679
1118B	Tanya and Candies implementation	1200	x11873
1118A	Water Buying math	800	x19784
1117G	Recursive Queries data structures	2500	x657
1117F	Crisp String bitmasks, dp	2500	x518
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1458
1117D	Magic Gems dp, math, matrices	2100	x4046
1117C	Magic Ship binary search	1900	x6493
1117B	Emotes greedy, math, sortings	1000	x13917
1117A	Best Subsegment implementation, math	1100	x10938
1116D6	Hessenberg matrix		x75
1116D5	Creeper		x145
1116D4	TIE fighter		x165
1116D3	X-wing fighter		x199
1116D2	Pattern of increasing blocks		x229
1116D1	Block diagonal matrix		x272
1116C3	``Is the number of ones divisible by 3?'' oracle		x180
1116C2	``Is the bit string periodic?'' oracle		x182
1116C1	Alternating bits oracle		x261
1116B2	Not A, not B or not C?		x55
1116B1	Distinguish three-qubit states		x129
1116A2	Generate equal superposition of four basis states		x176
1116A1	Generate state \|00⟩ + \|01⟩ + \|10⟩		x320
1115U3	Block unitary *special problem	1700	x197
1115U2	Chessboard unitary *special problem	1600	x231
1115U1	Anti-diagonal unitary *special problem	1500	x253
1115G3	Palindrome checker oracle *special problem	1600	x228
1115G2	OR oracle *special problem	1600	x309
1115G1	AND oracle *special problem	1100	x384
1114F	Please, another Queries on Array? bitmasks, data structures, divide and conquer, math, number theory	2400	x1832
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2780
1114D	Flood Fill dp	1900	x6572
1114C	Trailing Loves (or L'oeufs?) brute force, implementation, math, number theory	1700	x7274
1114B	Yet Another Array Partitioning Task constructive algorithms, greedy, sortings	1500	x8866
1114A	Got Any Grapes? brute force, greedy, implementation	800	x18270
1113B	Sasha and Magnetic Machines greedy, number theory	1300	x7686
1113A	Sasha and His Trip dp, greedy, math	900	x17049
1111E	Tree data structures, dfs and similar, dp, graphs, trees	2500	x858
1111D	Destroy the Colony combinatorics, dp, math	2600	x928
1111C	Creative Snap binary search, brute force, divide and conquer, math	1700	x6128
1111B	Average Superhero Gang Power brute force, implementation, math	1700	x6196
1111A	Superhero Transformation implementation, strings	1000	x16632
1110H	Modest Substrings dp, strings	3500	x277
1110G	Tree-Tac-Toe constructive algorithms, games, trees	3100	x610
1110F	Nearest Leaf data structures, trees	2600	x1684
1110E	Magic Stones constructive algorithms, math, sortings	2200	x3819
1110D	Jongmah dp	2200	x3280
1110C	Meaningless Operations constructive algorithms, math, number theory	1500	x8998
1110B	Tape greedy, sortings	1400	x10809
1110A	Parity math	900	x14631
1109F	Sasha and Algorithm of Silence's Sounds data structures, trees	3200	x288
1109E	Sasha and a Very Easy Test data structures, number theory	2700	x496
1109D	Sasha and Interesting Fact from Graph Theory brute force, combinatorics, dp, math, trees	2400	x1273
1109C	Sasha and a Patient Friend binary search, data structures, implementation	2800	x249
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4277
1109A	Sasha and a Bit of Relax dp, implementation	1600	x8390
1108F	MST Unification binary search, dsu, graphs, greedy	2100	x2627
1108E2	Array and Segments (Hard version) data structures, implementation	2100	x2132
1108E1	Array and Segments (Easy version) brute force, greedy, implementation	1800	x4431
1108D	Diverse Garland constructive algorithms, dp, greedy	1400	x14766
1108C	Nice Garland brute force, greedy, math	1300	x11802
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x22572
1108A	Two distinct points implementation	800	x21248
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x992
1107F	Vasya and Endless Credits dp, flows, graph matchings, graphs, sortings	2600	x734
1107E	Vasya and Binary String dp	2400	x2189
1107D	Compression dp, implementation, math, number theory	1800	x3686
1107C	Brutality greedy, sortings, two pointers	1300	x9671
1107B	Digital root math, number theory	1000	x15168
1107A	Digits Sequence Dividing greedy, strings	900	x11918
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x955
1106E	Lunar New Year and Red Envelopes data structures, dp	2100	x2358
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x14062
1106C	Lunar New Year and Number Division greedy, implementation, math, sortings	900	x14331
1106B	Lunar New Year and Food Ordering data structures, implementation	1500	x6696
1106A	Lunar New Year and Cross Counting implementation	800	x12290
1105E	Helping Hiasat bitmasks, brute force, dp, meet-in-the-middle	2200	x1598
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x4004
1105C	Ayoub and Lost Array combinatorics, dp, math	1500	x10184
1105B	Zuhair and Strings brute force, implementation, strings	1100	x9818
1105A	Salem and Sticks brute force, implementation	1100	x10814
1104B	Game with string data structures, implementation, math	1200	x14565
1104A	Splitting into digits constructive algorithms, implementation, math	800	x15184
1103E	Radix sum fft, math, number theory	3400	x222
1103D	Professional layer bitmasks, dp	3100	x402
1103C	Johnny Solving constructive algorithms, dfs and similar, graphs, math	2700	x783
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3180
1103A	Grid game constructive algorithms, implementation	1400	x9629
1102F	Elongated Matrix binary search, bitmasks, brute force, dp, graphs	2000	x1926
1102E	Monotonic Renumeration combinatorics, sortings	1700	x5718
1102D	Balanced Ternary String greedy, strings	1500	x7855
1102C	Doors Breaking and Repairing games	1200	x12829
1102B	Array K-Coloring greedy, sortings	1400	x10193
1102A	Integer Sequence Dividing math	800	x23602