Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
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math

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Problems

#	Name
1578G	Game of Chance math, probabilities	3500	x31
1666H	Heroes of Might math	3500	x59
1776N	Count Permutations math	3500	x63
1654H	Three Minimums combinatorics, constructive algorithms, divide and conquer, dp, fft, math	3500	x68
1704H2	Game of AI (hard version) combinatorics, fft, math	3500	x72
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x75
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x75
1687F	Koishi's Unconscious Permutation fft, math	3500	x76
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x78
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x83
1677F	Tokitsukaze and Gems dp, math	3500	x85
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x95
1540E	Tasty Dishes math, matrices	3500	x97
1718E	Impressionism constructive algorithms, graphs, implementation, math	3500	x101
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x107
1477F	Nezzar and Chocolate Bars combinatorics, fft, math, probabilities	3500	x120
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x141
1586I	Omkar and Mosaic combinatorics, constructive algorithms, math	3500	x154
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x170
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x179
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x210
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x211
1086F	Forest Fires math	3500	x222
1830E	Bully Sort data structures, math	3500	x223
1270I	Xor on Figures constructive algorithms, fft, math	3500	x225
1336E2	Chiori and Doll Picking (hard version) bitmasks, brute force, combinatorics, math	3500	x280
1637H	Minimize Inversions Number data structures, greedy, math, sortings	3500	x299
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x326
1158F	Density of subarrays dp, math	3500	x391
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x55
1310F	Bad Cryptography math, number theory	3400	x66
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x76
756F	Long number expression parsing, math, number theory	3400	x88
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x90
1045F	Shady Lady geometry, math	3400	x91
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x98
1552I	Organizing a Music Festival dfs and similar, math	3400	x120
1205F	Beauty of a Permutation constructive algorithms, math	3400	x120
913H	Don't Exceed math, probabilities	3400	x122
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x126
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x146
1158E	Strange device binary search, interactive, math, trees	3400	x146
1299E	So Mean interactive, math	3400	x147
1601F	Two Sorts binary search, dfs and similar, math, meet-in-the-middle	3400	x166
1242D	Number Discovery math	3400	x174
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x184
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x194
848E	Days of Floral Colours combinatorics, divide and conquer, dp, fft, math	3400	x198
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x208
1103E	Radix sum fft, math, number theory	3400	x212
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x234
794G	Replace All combinatorics, dp, math	3400	x318
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x333
715E	Complete the Permutations combinatorics, fft, graphs, math	3400	x340
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x53
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x66
737F	Dirty plates constructive algorithms, math	3300	x68
901E	Cyclic Cipher fft, math	3300	x83
1381E	Origami geometry, math, sortings	3300	x99
1737F	Ela and Prime GCD constructive algorithms, math, number theory	3300	x116
868G	El Toll Caves math	3300	x118
1580F	Problems for Codeforces combinatorics, fft, math	3300	x129
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x129
1209H	Moving Walkways data structures, greedy, math	3300	x133
1361F	Johnny and New Toy data structures, implementation, math	3300	x140
1718F	Burenka, an Array and Queries data structures, math, number theory	3300	x143
1450H2	Multithreading (Hard Version) combinatorics, implementation, math	3300	x161
1641E	Special Positions combinatorics, divide and conquer, fft, math	3300	x200
1392I	Kevin and Grid fft, graphs, math	3300	x201
618G	Combining Slimes dp, math, matrices, probabilities	3300	x215
1750G	Doping combinatorics, dp, math	3300	x222
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x236
1054G	New Road Network constructive algorithms, greedy, math	3300	x250
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x255
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x263
1528F	AmShZ Farm combinatorics, fft, math	3300	x271
1718D	Permutation for Burenka data structures, graph matchings, greedy, math, trees	3300	x284
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x311
1556H	DIY Tree graphs, greedy, math, probabilities	3300	x318
623E	Transforming Sequence combinatorics, dp, fft, math	3300	x525
986F	Oppa Funcan Style Remastered graphs, math, number theory, shortest paths	3300	x563
582D	Number of Binominal Coefficients dp, math, number theory	3300	x602
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x42
1776K	Uniform Chemistry dp, math	3200	x63
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x79
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x108
756E	Byteland coins combinatorics, dp, math	3200	x149
1408I	Bitwise Magic dp, math	3200	x163
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x168
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x188
913G	Power Substring math, number theory	3200	x191
1223G	Wooden Raft binary search, math, number theory	3200	x225
1819E	Roads in E City interactive, math, probabilities, trees	3200	x239
571E	Geometric Progressions math	3200	x248
1864H	Asterism Stream dp, math, matrices	3200	x265
1656G	Cycle Palindrome constructive algorithms, graphs, math	3200	x266
1284F	New Year and Social Network data structures, graph matchings, graphs, math, trees	3200	x305
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x311
1598G	The Sum of Good Numbers hashing, math, string suffix structures, strings	3200	x321
1081G	Mergesort Strikes Back math, probabilities	3200	x336

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