Problemset - Codeforces

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number theory

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Problems

#	Name
337B	Routine Problem greedy, math, number theory	1400	x9085
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9349
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9473
1200C	Round Corridor math, number theory	1400	x9587
1091C	New Year and the Sphere Transmission math, number theory	1400	x9781
757B	Bash's Big Day greedy, math, number theory	1400	x9810
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10752
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11594
1759D	Make It Round brute force, number theory	1400	x12033
1758C	Almost All Multiples greedy, number theory	1400	x12875
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x13325
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13408
1606C	Banknotes greedy, number theory	1400	x13720
1627C	Not Assigning constructive algorithms, dfs and similar, number theory, trees	1400	x14019
1714E	Add Modulo 10 brute force, math, number theory	1400	x15214
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15814
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x15935
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x16205
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x17020
762A	k-th divisor math, number theory	1400	x17913
1350B	Orac and Models dp, math, number theory	1400	x20544
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x20788
1285C	Fadi and LCM brute force, math, number theory	1400	x21915
1370C	Number Game games, math, number theory	1400	x23504
1526B	I Hate 1111 dp, math, number theory	1400	x28613
123A	Prime Permutation implementation, number theory, strings	1300	x3513
158D	Ice Sculptures *special problem, brute force, number theory	1300	x6170
633B	A Trivial Problem brute force, constructive algorithms, math, number theory	1300	x6538
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6953
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x7357
900B	Position in Fraction math, number theory	1300	x7622
1113B	Sasha and Magnetic Machines greedy, number theory	1300	x7660
1209B	Koala and Lights implementation, math, number theory	1300	x7937
876B	Divisiblity of Differences implementation, math, number theory	1300	x8679
870C	Maximum splitting dp, greedy, math, number theory	1300	x8952
1155C	Alarm Clocks Everywhere math, number theory	1300	x9059
371B	Fox Dividing Cheese math, number theory	1300	x10896
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11311
1220B	Multiplication Table math, number theory	1300	x11334
1823C	Strongly Composite greedy, math, number theory	1300	x11644
1174C	Ehab and a Special Coloring Problem constructive algorithms, number theory	1300	x11788
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12144
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12181
271B	Prime Matrix binary search, brute force, math, number theory	1300	x12350
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12556
1826C	Dreaming of Freedom greedy, math, number theory	1300	x12760
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13177
236B	Easy Number Challenge implementation, number theory	1300	x13452
1881D	Divide and Equalize math, number theory	1300	x14294
1931D	Divisible Pairs combinatorics, math, number theory	1300	x15699
1603A	Di-visible Confusion constructive algorithms, math, number theory	1300	x16093
573A	Bear and Poker implementation, math, number theory	1300	x16283
1407B	Big Vova brute force, greedy, math, number theory	1300	x16672
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x17044
519C	A and B and Team Training greedy, implementation, math, number theory	1300	x19321
1454D	Number into Sequence constructive algorithms, math, number theory	1300	x19711
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x20731
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23409
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x26106
1360D	Buying Shovels math, number theory	1300	x30718
1294C	Product of Three Numbers greedy, math, number theory	1300	x32229
230B	T-primes binary search, implementation, math, number theory	1300	x69735
172B	Pseudorandom Sequence Period *special problem, implementation, number theory	1200	x2686
177B2	Rectangular Game number theory	1200	x2826
1184A1	Heidi Learns Hashing (Easy) brute force, math, number theory	1200	x5830
817A	Treasure Hunt implementation, math, number theory	1200	x6058
59B	Fortune Telling implementation, number theory	1200	x6641
361B	Levko and Permutation constructive algorithms, math, number theory	1200	x7878
660A	Co-prime Array greedy, implementation, math, number theory	1200	x8521
1877C	Joyboard math, number theory	1200	x10016
1143B	Nirvana brute force, math, number theory	1200	x10033
787A	The Monster brute force, math, number theory	1200	x11029
1068B	LCM math, number theory	1200	x11077
1133B	Preparation for International Women's Day math, number theory	1200	x12329
1076B	Divisor Subtraction implementation, math, number theory	1200	x12528
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13765
1277B	Make Them Odd greedy, number theory	1200	x14611
1149A	Prefix Sum Primes constructive algorithms, greedy, math, number theory	1200	x14666
1954C	Long Multiplication greedy, math, number theory	1200	x14959
456B	Fedya and Maths math, number theory	1200	x15981
1736B	Playing with GCD math, number theory	1200	x17232
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17610
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18128
1656C	Make Equal With Mod constructive algorithms, math, number theory, sortings	1200	x18459
776B	Sherlock and his girlfriend constructive algorithms, number theory	1200	x19256
1487B	Cat Cycle math, number theory	1200	x19609
1409C	Yet Another Array Restoration brute force, math, number theory	1200	x22724
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x26418
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x26762
68A	Irrational problem implementation, number theory	1100	x4802
858A	k-rounding brute force, math, number theory	1100	x7844
735B	Urbanization greedy, number theory, sortings	1100	x8300
1033B	Square Difference math, number theory	1100	x9144
898B	Proper Nutrition brute force, implementation, number theory	1100	x9256
758B	Blown Garland brute force, implementation, number theory	1100	x10035
946B	Weird Subtraction Process math, number theory	1100	x10657
630J	Divisibility math, number theory	1100	x10670
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11249
633A	Ebony and Ivory brute force, math, number theory	1100	x12294
1787B	Number Factorization greedy, math, number theory	1100	x12673