Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
13:56:20
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Problems

#	Name
1991H	Prime Split Game bitmasks, dp, fft, games, math, number theory	3300	x256
1988F	Heartbeat combinatorics, dp, fft, math	3000	x180
1975G	Zimpha Fan Club fft, greedy, math, strings	3000	x216
1967E1	Again Counting Arrays (Easy Version) combinatorics, dp, fft, math	3100	x209
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x111
1909I	Short Permutation Problem combinatorics, dp, fft, math	1900	x118
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x101
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x87
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1372
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x370
1821F	Timber combinatorics, dp, fft, math	2600	x740
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x388
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x359
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x158
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x685
1726E	Almost Perfect combinatorics, fft, math	2400	x1412
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x548
1704H2	Game of AI (hard version) combinatorics, fft, math	3500	x84
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x179
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x112
1687F	Koishi's Unconscious Permutation fft, math	3500	x84
1671F	Permutation Counting brute force, combinatorics, dp, fft, math	2700	x332
1667E	Centroid Probabilities combinatorics, dp, fft, math	3000	x646
1654H	Three Minimums combinatorics, constructive algorithms, divide and conquer, dp, fft, math	3500	x76
1644F	Basis combinatorics, fft, math, number theory	2900	x321
1641E	Special Positions combinatorics, divide and conquer, fft, math	3300	x207
1613F	Tree Coloring combinatorics, divide and conquer, fft	2600	x684
1608D	Dominoes combinatorics, fft, graphs, math, number theory	2400	x1383
1580F	Problems for Codeforces combinatorics, fft, math	3300	x133
1575C	Cyclic Sum data structures, fft, number theory	3000	x163
1574F	Occurrences combinatorics, dfs and similar, dp, dsu, fft, graphs	2700	x620
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2296
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x203
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x1822
1542E2	Abnormal Permutation Pairs (hard version) combinatorics, dp, fft, math	2700	x846
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1231
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x948
1528F	AmShZ Farm combinatorics, fft, math	3300	x287
1488J	Flower Shop *special problem, data structures, fft, math	3100	x35
1487G	String Counting combinatorics, dp, fft, math	2700	x595
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x206
1477F	Nezzar and Chocolate Bars combinatorics, fft, math, probabilities	3500	x131
1473G	Tiles combinatorics, dp, fft, math	2800	x391
1450H1	Multithreading (Easy Version) combinatorics, fft, math	2900	x433
1439D	INOI Final Contests combinatorics, dp, fft	3100	x368
1438C	Engineer Artem 2-sat, chinese remainder theorem, constructive algorithms, fft, flows	2000	x10428
1408G	Clusterization Counting combinatorics, dp, dsu, fft, graphs, trees	2700	x1032
1398G	Running Competition bitmasks, fft, math, number theory	2600	x1082
1392I	Kevin and Grid fft, graphs, math	3300	x204
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x112
1349F1	Slime and Sequences (Easy Version) dp, fft, math	3100	x412
1342E	Placing Rooks combinatorics, fft, math	2300	x3072
1334G	Substring Search bitmasks, brute force, fft	2900	x363
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x243
1270I	Xor on Figures constructive algorithms, fft, math	3500	x236
1257G	Divisor Set divide and conquer, fft, greedy, math, number theory	2600	x607
1251F	Red-White Fence combinatorics, fft	2500	x819
1218E	Product Tuples divide and conquer, fft	2500	x377
1218D	Xor Spanning Tree divide and conquer, fft, graphs	2400	x498
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x139
1119H	Triple fft, math	3200	x558
1119E	Pavel and Triangles brute force, dp, fft, greedy, ternary search	1900	x4987
1103E	Radix sum fft, math, number theory	3400	x232
1096G	Lucky Tickets divide and conquer, dp, fft	2400	x1455
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x177
1036E	Covered Points fft, geometry, number theory	2400	x1633
1033F	Boolean Computer bitmasks, brute force, fft, math	2800	x371
1010F	Tree fft, graphs, trees	3400	x218
993E	Nikita and Order Statistics chinese remainder theorem, fft, math	2300	x1411
986D	Perfect Encoding fft, math	3100	x327
981H	K Paths combinatorics, data structures, dp, fft, math	3100	x270
960G	Bandit Blues combinatorics, dp, fft, math	2900	x1065
958F3	Lightsabers (hard) fft	2600	x692
954I	Yet Another String Matching Problem fft, math	2200	x1015
923E	Perpetual Subtraction fft, math, matrices	3100	x452
914G	Sum the Fibonacci bitmasks, divide and conquer, dp, fft, math	2600	x924
901E	Cyclic Cipher fft, math	3300	x86
850E	Random Elections bitmasks, brute force, divide and conquer, fft, math	2800	x386
848E	Days of Floral Colours combinatorics, divide and conquer, dp, fft, math	3400	x207
827E	Rusty String fft, math, strings	2700	x960
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x188
755G	PolandBall and Many Other Balls combinatorics, divide and conquer, dp, fft, math, number theory	3200	x908
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x496
715E	Complete the Permutations combinatorics, fft, graphs, math	3400	x356
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x2007
632E	Thief in a Shop divide and conquer, dp, fft, math	2400	x2741
623E	Transforming Sequence combinatorics, dp, fft, math	3300	x548
553E	Kyoya and Train dp, fft, graphs, math, probabilities	3200	x553
528D	Fuzzy Search bitmasks, brute force, fft	2500	x2131
472G	Design Tutorial: Increase the Constraints bitmasks, data structures, fft	2800	x401
438E	The Child and Binary Tree combinatorics, divide and conquer, fft, number theory	3100	x1878
300D	Painting Square dp, fft	2300	x752
286E	Ladies' Shop constructive algorithms, fft, math	2800	x832