Problemset - Codeforces

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Codeforces Round #794 (Div. 1)
34:52:18
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Before contest
Codeforces Round #794 (Div. 2)
34:52:18
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Difficulty: —

number theory

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Problems

#	Name
472A	Design Tutorial: Learn from Math math, number theory	800	x41248
1370A	Maximum GCD greedy, implementation, math, number theory	800	x34502
749A	Bachgold Problem greedy, implementation, math, number theory	800	x33986
630A	Again Twenty Five! number theory	800	x33293
1520B	Ordinary Numbers brute force, math, number theory	800	x31297
1325A	EhAb AnD gCd constructive algorithms, greedy, number theory	800	x29300
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x28570
1549A	Gregor and Cryptography math, number theory	800	x24821
822A	I'm bored with life implementation, math, number theory	800	x23775
1553A	Digits Sum math, number theory	800	x23502
1455A	Strange Functions math, number theory	800	x22892
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x22787
1525A	Potion-making math, number theory	800	x22238
1312A	Two Regular Polygons geometry, greedy, math, number theory	800	x22184
1514A	Perfectly Imperfect Array math, number theory	800	x21152
1629B	GCD Arrays greedy, math, number theory	800	x19955
1605A	A.M. Deviation math, number theory	800	x17835
1658B	Marin and Anti-coprime Permutation combinatorics, math, number theory	800	x15579
755A	PolandBall and Hypothesis brute force, graphs, math, number theory	800	x14600
664A	Complicated GCD math, number theory	800	x13281
1583A	Windblume Ode math, number theory	800	x12318
1581A	CQXYM Count Permutations combinatorics, math, number theory	800	x11646
313A	Ilya and Bank Account implementation, number theory	900	x37624
1475A	Odd Divisor math, number theory	900	x35294
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x23111
1324A	Yet Another Tetris Problem implementation, number theory	900	x22279
1543A	Exciting Bets greedy, math, number theory	900	x20839
1471A	Strange Partition greedy, math, number theory	900	x20481
1238A	Prime Subtraction math, number theory	900	x19006
199A	Hexadecimal's theorem brute force, constructive algorithms, implementation, number theory	900	x17771
26A	Almost Prime number theory	900	x17768
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x16036
1609A	Divide and Multiply greedy, implementation, math, number theory	900	x12918
1679A	AvtoBus brute force, greedy, math, number theory	900	x12782
84A	Toy Army math, number theory	900	x11630
267A	Subtractions math, number theory	900	x5087
122A	Lucky Division brute force, number theory	1000	x81192
577A	Multiplication Table implementation, number theory	1000	x28744
742A	Arpa’s hard exam and Mehrdad’s naive cheat implementation, math, number theory	1000	x26924
1521A	Nastia and Nearly Good Numbers constructive algorithms, math, number theory	1000	x25203
1326A	Bad Ugly Numbers constructive algorithms, number theory	1000	x23677
1473B	String LCM brute force, math, number theory, strings	1000	x22867
766B	Mahmoud and a Triangle constructive algorithms, geometry, greedy, math, number theory, sortings	1000	x21715
1474B	Different Divisors binary search, constructive algorithms, greedy, math, number theory	1000	x20127
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x19065
1485A	Add and Divide brute force, greedy, math, number theory	1000	x17128
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x16493
1411B	Fair Numbers brute force, number theory	1000	x14585
1051B	Relatively Prime Pairs greedy, math, number theory	1000	x13724
1245A	Good ol' Numbers Coloring math, number theory	1000	x12634
1107B	Digital root math, number theory	1000	x12071
17A	Noldbach problem brute force, math, number theory	1000	x10211
299A	Ksusha and Array brute force, number theory, sortings	1000	x6077
177B1	Rectangular Game number theory	1000	x3301
919B	Perfect Number binary search, brute force, dp, implementation, number theory	1100	x20575
1370B	GCD Compression constructive algorithms, math, number theory	1100	x20354
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x18195
1511B	GCD Length constructive algorithms, math, number theory	1100	x17840
483A	Counterexample brute force, implementation, math, number theory	1100	x16992
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x15382
1593D1	All are Same math, number theory	1100	x14940
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x10255
633A	Ebony and Ivory brute force, math, number theory	1100	x9647
946B	Weird Subtraction Process math, number theory	1100	x9619
758B	Blown Garland brute force, implementation, number theory	1100	x8909
797A	k-Factorization implementation, math, number theory	1100	x8885
630J	Divisibility math, number theory	1100	x8484
898B	Proper Nutrition brute force, implementation, number theory	1100	x8193
735B	Urbanization greedy, number theory, sortings	1100	x7518
1033B	Square Difference math, number theory	1100	x7444
858A	k-rounding brute force, math, number theory	1100	x6818
68A	Irrational problem implementation, number theory	1100	x3995
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x20824
1409C	Yet Another Array Restoration brute force, math, number theory	1200	x19513
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x18791
1487B	Cat Cycle math, number theory	1200	x15148
776B	Sherlock and his girlfriend constructive algorithms, number theory	1200	x13593
456B	Fedya and Maths math, number theory	1200	x12804
1656C	Make Equal With Mod constructive algorithms, math, number theory, sortings	1200	x12684
1149A	Prefix Sum Primes constructive algorithms, greedy, math, number theory	1200	x12310
1277B	Make Them Odd greedy, number theory	1200	x11464
1076B	Divisor Subtraction implementation, math, number theory	1200	x10699
1133B	Preparation for International Women's Day math, number theory	1200	x10269
787A	The Monster brute force, math, number theory	1200	x9445
1068B	LCM math, number theory	1200	x9085
1143B	Nirvana brute force, math, number theory	1200	x8414
361B	Levko and Permutation constructive algorithms, math, number theory	1200	x6748
660A	Co-prime Array greedy, implementation, math, number theory	1200	x6588
59B	Fortune Telling implementation, number theory	1200	x5356
817A	Treasure Hunt implementation, math, number theory	1200	x5250
1184A1	Heidi Learns Hashing (Easy) brute force, math, number theory	1200	x5008
177B2	Rectangular Game number theory	1200	x2370
172B	Pseudorandom Sequence Period *special problem, implementation, number theory	1200	x2309
230B	T-primes binary search, implementation, math, number theory	1300	x46583
1360D	Buying Shovels math, number theory	1300	x23005
1294C	Product of Three Numbers greedy, math, number theory	1300	x22950
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x20975
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x19113
519C	A and B and Team Training greedy, implementation, math, number theory	1300	x16734
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x16232

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