Problemset - Codeforces

Problems

#	Name
630J	Divisibility math, number theory	1100	x10704
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11261
633A	Ebony and Ivory brute force, math, number theory	1100	x12354
1787B	Number Factorization greedy, math, number theory	1100	x12744
797A	k-Factorization implementation, math, number theory	1100	x14116
1826B	Lunatic Never Content math, number theory	1100	x15882
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x16213
1780B	GCD Partition brute force, greedy, math, number theory	1100	x16657
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x18222
1932B	Chaya Calendar number theory	1100	x18558
1593D1	All are Same math, number theory	1100	x19615
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x20559
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20579
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20664
1742D	Coprime brute force, greedy, number theory	1100	x21833
1511B	GCD Length constructive algorithms, math, number theory	1100	x22004
1872C	Non-coprime Split math, number theory	1100	x22124
483A	Counterexample brute force, implementation, math, number theory	1100	x22275
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x22468
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23116
919B	Perfect Number binary search, brute force, dp, implementation, number theory	1100	x26964
177B1	Rectangular Game number theory	1000	x3995
299A	Ksusha and Array brute force, number theory, sortings	1000	x7764
1765M	Minimum LCM math, number theory	1000	x12817
1245A	Good ol' Numbers Coloring math, number theory	1000	x13900
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14451
1107B	Digital root math, number theory	1000	x14854
17A	Noldbach problem brute force, math, number theory	1000	x15157
1051B	Relatively Prime Pairs greedy, math, number theory	1000	x16610
1411B	Fair Numbers brute force, number theory	1000	x17888
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x19194
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x19744
1485A	Add and Divide brute force, greedy, math, number theory	1000	x20919
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22021
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23771
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x24199
1474B	Different Divisors binary search, constructive algorithms, greedy, math, number theory	1000	x26571
1326A	Bad Ugly Numbers constructive algorithms, number theory	1000	x29497
1473B	String LCM brute force, math, number theory, strings	1000	x29778
766B	Mahmoud and a Triangle constructive algorithms, geometry, greedy, math, number theory, sortings	1000	x31237
1521A	Nastia and Nearly Good Numbers constructive algorithms, math, number theory	1000	x35473
577A	Multiplication Table implementation, number theory	1000	x38214
742A	Arpa’s hard exam and Mehrdad’s naive cheat implementation, math, number theory	1000	x40055
122A	Lucky Division brute force, number theory	1000	x116646
267A	Subtractions math, number theory	900	x7160
84A	Toy Army math, number theory	900	x14604
1764B	Doremy's Perfect Math Class math, number theory	900	x15296
1609A	Divide and Multiply greedy, implementation, math, number theory	900	x16699
1945B	Fireworks math, number theory	900	x19922
1828B	Permutation Swap math, number theory	900	x20788
1720A	Burenka Plays with Fractions math, number theory	900	x21797
1679A	AvtoBus brute force, greedy, math, number theory	900	x22026
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x22486
1238A	Prime Subtraction math, number theory	900	x23323
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x23965
1471A	Strange Partition greedy, math, number theory	900	x24626
199A	Hexadecimal's theorem brute force, constructive algorithms, implementation, number theory	900	x25191
1324A	Yet Another Tetris Problem implementation, number theory	900	x25332
1543A	Exciting Bets greedy, math, number theory	900	x26520
26A	Almost Prime number theory	900	x28757
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x29670
313A	Ilya and Bank Account implementation, number theory	900	x53776
1475A	Odd Divisor math, number theory	900	x55618
1581A	CQXYM Count Permutations combinatorics, math, number theory	800	x13270
1583A	Windblume Ode math, number theory	800	x13540
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x16952
1789A	Serval and Mocha's Array brute force, math, number theory	800	x17151
1810B	Candies constructive algorithms, math, number theory	800	x17171
664A	Complicated GCD math, number theory	800	x17465
755A	PolandBall and Hypothesis brute force, graphs, math, number theory	800	x17552
1658B	Marin and Anti-coprime Permutation combinatorics, math, number theory	800	x18381
1762A	Divide and Conquer greedy, math, number theory	800	x18591
1717A	Madoka and Strange Thoughts math, number theory	800	x19174
1740A	Factorise N+M constructive algorithms, number theory	800	x19636
1605A	A.M. Deviation math, number theory	800	x20353
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21277
1629B	GCD Arrays greedy, math, number theory	800	x23008
1514A	Perfectly Imperfect Array math, number theory	800	x23817
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x24560
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24615
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24733
1525A	Potion-making math, number theory	800	x25084
1312A	Two Regular Polygons geometry, greedy, math, number theory	800	x25351
1455A	Strange Functions math, number theory	800	x26051
1968A	Maximize? brute force, math, number theory	800	x27547
1768A	Greatest Convex greedy, math, number theory	800	x28062
1859A	United We Stand constructive algorithms, math, number theory	800	x29521
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x30121
1553A	Digits Sum math, number theory	800	x30203
1549A	Gregor and Cryptography math, number theory	800	x31432
822A	I'm bored with life implementation, math, number theory	800	x31757
1325A	EhAb AnD gCd constructive algorithms, greedy, number theory	800	x38321
1899A	Game with Integers games, math, number theory	800	x38369
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x38540
1520B	Ordinary Numbers brute force, math, number theory	800	x43030
749A	Bachgold Problem greedy, implementation, math, number theory	800	x46753
1370A	Maximum GCD greedy, implementation, math, number theory	800	x49055
472A	Design Tutorial: Learn from Math math, number theory	800	x57188
630A	Again Twenty Five! number theory	800	x62345

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Before contest
Codeforces Round 946 (Div. 3)
04:58:34
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