Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
28:26:59
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Before contest
Codeforces Round 941 (Div. 2)
28:26:59
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Difficulty: —

number theory

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Problems

#	Name
630A	Again Twenty Five! number theory	800	x61617
472A	Design Tutorial: Learn from Math math, number theory	800	x56826
1370A	Maximum GCD greedy, implementation, math, number theory	800	x48555
749A	Bachgold Problem greedy, implementation, math, number theory	800	x46294
1520B	Ordinary Numbers brute force, math, number theory	800	x42681
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x38221
1325A	EhAb AnD gCd constructive algorithms, greedy, number theory	800	x37996
1899A	Game with Integers games, math, number theory	800	x37244
822A	I'm bored with life implementation, math, number theory	800	x31607
1549A	Gregor and Cryptography math, number theory	800	x31256
1553A	Digits Sum math, number theory	800	x30054
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x29548
1859A	United We Stand constructive algorithms, math, number theory	800	x29064
1768A	Greatest Convex greedy, math, number theory	800	x27914
1455A	Strange Functions math, number theory	800	x25982
1312A	Two Regular Polygons geometry, greedy, math, number theory	800	x25271
1525A	Potion-making math, number theory	800	x25039
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x24526
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24434
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24407
1514A	Perfectly Imperfect Array math, number theory	800	x23766
1629B	GCD Arrays greedy, math, number theory	800	x22944
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21209
1605A	A.M. Deviation math, number theory	800	x20314
1740A	Factorise N+M constructive algorithms, number theory	800	x19562
1717A	Madoka and Strange Thoughts math, number theory	800	x19102
1762A	Divide and Conquer greedy, math, number theory	800	x18504
1658B	Marin and Anti-coprime Permutation combinatorics, math, number theory	800	x18345
755A	PolandBall and Hypothesis brute force, graphs, math, number theory	800	x17497
664A	Complicated GCD math, number theory	800	x17364
1810B	Candies constructive algorithms, math, number theory	800	x17114
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x16909
1789A	Serval and Mocha's Array brute force, math, number theory	800	x16847
1583A	Windblume Ode math, number theory	800	x13526
1581A	CQXYM Count Permutations combinatorics, math, number theory	800	x13237
1475A	Odd Divisor math, number theory	900	x54836
313A	Ilya and Bank Account implementation, number theory	900	x53405
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x29519
26A	Almost Prime number theory	900	x28412
1543A	Exciting Bets greedy, math, number theory	900	x26278
1324A	Yet Another Tetris Problem implementation, number theory	900	x25226
199A	Hexadecimal's theorem brute force, constructive algorithms, implementation, number theory	900	x24997
1471A	Strange Partition greedy, math, number theory	900	x24408
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x23570
1238A	Prime Subtraction math, number theory	900	x23219
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x22346
1679A	AvtoBus brute force, greedy, math, number theory	900	x21726
1720A	Burenka Plays with Fractions math, number theory	900	x21691
1828B	Permutation Swap math, number theory	900	x20503
1945B	Fireworks math, number theory	900	x19076
1609A	Divide and Multiply greedy, implementation, math, number theory	900	x16641
1764B	Doremy's Perfect Math Class math, number theory	900	x15223
84A	Toy Army math, number theory	900	x14535
267A	Subtractions math, number theory	900	x7119
122A	Lucky Division brute force, number theory	1000	x115571
742A	Arpa’s hard exam and Mehrdad’s naive cheat implementation, math, number theory	1000	x39710
577A	Multiplication Table implementation, number theory	1000	x37947
1521A	Nastia and Nearly Good Numbers constructive algorithms, math, number theory	1000	x35221
766B	Mahmoud and a Triangle constructive algorithms, geometry, greedy, math, number theory, sortings	1000	x30989
1473B	String LCM brute force, math, number theory, strings	1000	x29590
1326A	Bad Ugly Numbers constructive algorithms, number theory	1000	x29332
1474B	Different Divisors binary search, constructive algorithms, greedy, math, number theory	1000	x26221
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x24081
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23462
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x21854
1485A	Add and Divide brute force, greedy, math, number theory	1000	x20735
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x19150
1411B	Fair Numbers brute force, number theory	1000	x17706
1051B	Relatively Prime Pairs greedy, math, number theory	1000	x16459
17A	Noldbach problem brute force, math, number theory	1000	x14996
1107B	Digital root math, number theory	1000	x14799
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14382
1245A	Good ol' Numbers Coloring math, number theory	1000	x13877
1765M	Minimum LCM math, number theory	1000	x12512
299A	Ksusha and Array brute force, number theory, sortings	1000	x7716
177B1	Rectangular Game number theory	1000	x3980
919B	Perfect Number binary search, brute force, dp, implementation, number theory	1100	x26703
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23048
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x22326
483A	Counterexample brute force, implementation, math, number theory	1100	x22125
1511B	GCD Length constructive algorithms, math, number theory	1100	x21922
1872C	Non-coprime Split math, number theory	1100	x21841
1742D	Coprime brute force, greedy, number theory	1100	x21452
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20405
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20197
1593D1	All are Same math, number theory	1100	x19536
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x19410
1932B	Chaya Calendar number theory	1100	x18122
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x17920
1780B	GCD Partition brute force, greedy, math, number theory	1100	x16476
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x16152
1826B	Lunatic Never Content math, number theory	1100	x15629
797A	k-Factorization implementation, math, number theory	1100	x13906
1787B	Number Factorization greedy, math, number theory	1100	x12653
633A	Ebony and Ivory brute force, math, number theory	1100	x12285
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11164
946B	Weird Subtraction Process math, number theory	1100	x10655
630J	Divisibility math, number theory	1100	x10654
758B	Blown Garland brute force, implementation, number theory	1100	x10032
898B	Proper Nutrition brute force, implementation, number theory	1100	x9250

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