Problemset - Codeforces

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number theory

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Problems

#	Name
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6381
937B	Vile Grasshoppers brute force, math, number theory	1400	x6797
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7253
150A	Win or Freeze games, math, number theory	1400	x7597
337B	Routine Problem greedy, math, number theory	1400	x9103
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9369
1609C	Complex Market Analysis binary search, dp, implementation, number theory, schedules, two pointers	1400	x9516
1200C	Round Corridor math, number theory	1400	x9718
1091C	New Year and the Sphere Transmission math, number theory	1400	x9820
757B	Bash's Big Day greedy, math, number theory	1400	x9898
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x10216
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10853
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11665
1759D	Make It Round brute force, number theory	1400	x12345
1758C	Almost All Multiples greedy, number theory	1400	x12966
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x13360
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13526
1606C	Banknotes greedy, number theory	1400	x13777
1627C	Not Assigning constructive algorithms, dfs and similar, number theory, trees	1400	x14078
1714E	Add Modulo 10 brute force, math, number theory	1400	x15392
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15915
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x16035
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x16273
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x17139
762A	k-th divisor math, number theory	1400	x18172
1350B	Orac and Models dp, math, number theory	1400	x20687
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x20949
1285C	Fadi and LCM brute force, math, number theory	1400	x22144
1370C	Number Game games, math, number theory	1400	x23603
1526B	I Hate 1111 dp, math, number theory	1400	x28876
123A	Prime Permutation implementation, number theory, strings	1300	x3518
158D	Ice Sculptures *special problem, brute force, number theory	1300	x6180
633B	A Trivial Problem brute force, constructive algorithms, math, number theory	1300	x6546
840A	Leha and Function combinatorics, greedy, math, number theory, sortings	1300	x6956
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x7367
900B	Position in Fraction math, number theory	1300	x7638
1113B	Sasha and Magnetic Machines greedy, number theory	1300	x7668
1209B	Koala and Lights implementation, math, number theory	1300	x7953
876B	Divisiblity of Differences implementation, math, number theory	1300	x8761
870C	Maximum splitting dp, greedy, math, number theory	1300	x8965
1155C	Alarm Clocks Everywhere math, number theory	1300	x9073
371B	Fox Dividing Cheese math, number theory	1300	x10933
1220B	Multiplication Table math, number theory	1300	x11348
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11412
1823C	Strongly Composite greedy, math, number theory	1300	x11714
1174C	Ehab and a Special Coloring Problem constructive algorithms, number theory	1300	x11815
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12325
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12368
271B	Prime Matrix binary search, brute force, math, number theory	1300	x12448
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12670
1826C	Dreaming of Freedom greedy, math, number theory	1300	x12855
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13327
236B	Easy Number Challenge implementation, number theory	1300	x13517
1881D	Divide and Equalize math, number theory	1300	x14684
1931D	Divisible Pairs combinatorics, math, number theory	1300	x16042
1603A	Di-visible Confusion constructive algorithms, math, number theory	1300	x16199
573A	Bear and Poker implementation, math, number theory	1300	x16314
1407B	Big Vova brute force, greedy, math, number theory	1300	x16697
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x17351
519C	A and B and Team Training greedy, implementation, math, number theory	1300	x19351
1454D	Number into Sequence constructive algorithms, math, number theory	1300	x19783
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x20806
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23482
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x26255
1360D	Buying Shovels math, number theory	1300	x30937
1294C	Product of Three Numbers greedy, math, number theory	1300	x32480
230B	T-primes binary search, implementation, math, number theory	1300	x70348
172B	Pseudorandom Sequence Period *special problem, implementation, number theory	1200	x2691
177B2	Rectangular Game number theory	1200	x2831
1184A1	Heidi Learns Hashing (Easy) brute force, math, number theory	1200	x5861
817A	Treasure Hunt implementation, math, number theory	1200	x6072
59B	Fortune Telling implementation, number theory	1200	x6695
361B	Levko and Permutation constructive algorithms, math, number theory	1200	x7896
660A	Co-prime Array greedy, implementation, math, number theory	1200	x8551
1143B	Nirvana brute force, math, number theory	1200	x10085
1877C	Joyboard math, number theory	1200	x10135
787A	The Monster brute force, math, number theory	1200	x11062
1068B	LCM math, number theory	1200	x11119
1133B	Preparation for International Women's Day math, number theory	1200	x12386
1076B	Divisor Subtraction implementation, math, number theory	1200	x12571
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x14100
1277B	Make Them Odd greedy, number theory	1200	x14665
1149A	Prefix Sum Primes constructive algorithms, greedy, math, number theory	1200	x14773
456B	Fedya and Maths math, number theory	1200	x16059
1954C	Long Multiplication greedy, math, number theory	1200	x16096
1736B	Playing with GCD math, number theory	1200	x17305
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17996
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18360
1656C	Make Equal With Mod constructive algorithms, math, number theory, sortings	1200	x18554
776B	Sherlock and his girlfriend constructive algorithms, number theory	1200	x19444
1487B	Cat Cycle math, number theory	1200	x19756
1409C	Yet Another Array Restoration brute force, math, number theory	1200	x22764
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x26636
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x26850
68A	Irrational problem implementation, number theory	1100	x4820
858A	k-rounding brute force, math, number theory	1100	x7865
735B	Urbanization greedy, number theory, sortings	1100	x8304
1033B	Square Difference math, number theory	1100	x9253
898B	Proper Nutrition brute force, implementation, number theory	1100	x9307
758B	Blown Garland brute force, implementation, number theory	1100	x10067