Problemset - Codeforces

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Codeforces Round 943 (Div. 3)
15:47:53
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number theory

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Problems

#	Name
1005D	Polycarp and Div 3 dp, greedy, number theory	1500	x9807
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9855
1366D	Two Divisors constructive algorithms, math, number theory	2000	x9893
1877C	Joyboard math, number theory	1200	x10015
1143B	Nirvana brute force, math, number theory	1200	x10025
758B	Blown Garland brute force, implementation, number theory	1100	x10035
1744E1	Divisible Numbers (easy version) brute force, math, number theory	1500	x10184
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x10599
946B	Weird Subtraction Process math, number theory	1100	x10657
630J	Divisibility math, number theory	1100	x10670
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10750
371B	Fox Dividing Cheese math, number theory	1300	x10894
1133D	Zero Quantity Maximization hashing, math, number theory	1500	x10913
787A	The Monster brute force, math, number theory	1200	x11028
1068B	LCM math, number theory	1200	x11077
546D	Soldier and Number Game constructive algorithms, dp, math, number theory	1700	x11201
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11245
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11311
1220B	Multiplication Table math, number theory	1300	x11332
1804C	Pull Your Luck brute force, greedy, math, number theory	1500	x11489
1811E	Living Sequence binary search, dp, math, number theory	1500	x11518
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x11522
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11543
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11593
1823C	Strongly Composite greedy, math, number theory	1300	x11641
1673C	Palindrome Basis brute force, dp, math, number theory	1500	x11657
1920C	Partitioning the Array brute force, math, number theory	1600	x11737
1174C	Ehab and a Special Coloring Problem constructive algorithms, number theory	1300	x11788
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x11819
1537D	Deleting Divisors games, math, number theory	1700	x11830
75C	Modified GCD binary search, number theory	1600	x11970
1753B	Factorial Divisibility math, number theory	1600	x12013
1759D	Make It Round brute force, number theory	1400	x12031
460B	Little Dima and Equation brute force, implementation, math, number theory	1500	x12080
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12139
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12178
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12269
707C	Pythagorean Triples math, number theory	1500	x12273
633A	Ebony and Ivory brute force, math, number theory	1100	x12292
1133B	Preparation for International Women's Day math, number theory	1200	x12329
271B	Prime Matrix binary search, brute force, math, number theory	1300	x12347
1379B	Dubious Cyrpto binary search, brute force, math, number theory	1500	x12467
1076B	Divisor Subtraction implementation, math, number theory	1200	x12528
1444A	Division brute force, math, number theory	1500	x12546
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12553
1765M	Minimum LCM math, number theory	1000	x12559
735D	Taxes math, number theory	1600	x12629
1787B	Number Factorization greedy, math, number theory	1100	x12672
1826C	Dreaming of Freedom greedy, math, number theory	1300	x12758
1758C	Almost All Multiples greedy, number theory	1400	x12875
1538D	Another Problem About Dividing Numbers constructive algorithms, math, number theory	1700	x13021
1603B	Moderate Modular Mode constructive algorithms, math, number theory	1600	x13055
576A	Vasya and Petya's Game math, number theory	1500	x13156
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13171
1581A	CQXYM Count Permutations combinatorics, math, number theory	800	x13240
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x13323
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13407
236B	Easy Number Challenge implementation, number theory	1300	x13446
1542C	Strange Function math, number theory	1600	x13498
1536C	Diluc and Kaeya data structures, dp, hashing, number theory	1500	x13525
1583A	Windblume Ode math, number theory	800	x13526
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x13559
1342C	Yet Another Counting Problem math, number theory	1600	x13587
1606C	Banknotes greedy, number theory	1400	x13719
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13753
1245A	Good ol' Numbers Coloring math, number theory	1000	x13886
797A	k-Factorization implementation, math, number theory	1100	x13929
1627C	Not Assigning constructive algorithms, dfs and similar, number theory, trees	1400	x14018
1514C	Product 1 Modulo N greedy, number theory	1600	x14259
1881D	Divide and Equalize math, number theory	1300	x14280
1397B	Power Sequence brute force, math, number theory, sortings	1500	x14344
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14399
84A	Toy Army math, number theory	900	x14549
1277B	Make Them Odd greedy, number theory	1200	x14610
1149A	Prefix Sum Primes constructive algorithms, greedy, math, number theory	1200	x14665
1107B	Digital root math, number theory	1000	x14809
1954C	Long Multiplication greedy, math, number theory	1200	x14893
1396A	Multiples of Length constructive algorithms, greedy, number theory	1600	x14948
17A	Noldbach problem brute force, math, number theory	1000	x15015
1165D	Almost All Divisors math, number theory	1600	x15133
1344A	Hilbert's Hotel math, number theory, sortings	1600	x15175
1714E	Add Modulo 10 brute force, math, number theory	1400	x15208
1764B	Doremy's Perfect Math Class math, number theory	900	x15241
1826B	Lunatic Never Content math, number theory	1100	x15657
1931D	Divisible Pairs combinatorics, math, number theory	1300	x15685
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15812
1349A	Orac and LCM data structures, math, number theory	1600	x15873
1458A	Row GCD math, number theory	1600	x15932
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x15933
456B	Fedya and Maths math, number theory	1200	x15977
1603A	Di-visible Confusion constructive algorithms, math, number theory	1300	x16092
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x16168
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x16204
573A	Bear and Poker implementation, math, number theory	1300	x16282
1051B	Relatively Prime Pairs greedy, math, number theory	1000	x16477
1780B	GCD Partition brute force, greedy, math, number theory	1100	x16511
1609A	Divide and Multiply greedy, implementation, math, number theory	900	x16656
1407B	Big Vova brute force, greedy, math, number theory	1300	x16672
235A	LCM Challenge number theory	1600	x16788
1789A	Serval and Mocha's Array brute force, math, number theory	800	x16894