Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
678A	Johny Likes Numbers implementation, math	800	x12504
1328D	Carousel constructive algorithms, dp, graphs, greedy, math	1800	x12482
1765M	Minimum LCM math, number theory	1000	x12477
1534C	Little Alawn's Puzzle combinatorics, dp, dsu, graphs, math	1300	x12468
1379B	Dubious Cyrpto binary search, brute force, math, number theory	1500	x12461
86D	Powerful array data structures, implementation, math, two pointers	2200	x12461
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x12382
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12377
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12367
1195A	Drinks Choosing greedy, math	1000	x12363
1140D	Minimum Triangulation dp, greedy, math	1200	x12355
1534B	Histogram Ugliness greedy, implementation, math	1100	x12345
1473C	No More Inversions constructive algorithms, math	1500	x12343
11A	Increasing Sequence constructive algorithms, implementation, math	900	x12333
9C	Hexadecimal's Numbers brute force, implementation, math	1200	x12333
271B	Prime Matrix binary search, brute force, math, number theory	1300	x12327
1133B	Preparation for International Women's Day math, number theory	1200	x12313
1499C	Minimum Grid Path brute force, data structures, greedy, math	1500	x12311
1746C	Permutation Operations constructive algorithms, greedy, implementation, math	1300	x12301
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x12282
633A	Ebony and Ivory brute force, math, number theory	1100	x12278
707C	Pythagorean Triples math, number theory	1500	x12261
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x12258
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12257
1836B	Astrophysicists greedy, math	1100	x12240
1159A	A pile of stones implementation, math	800	x12219
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12216
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12192
1249C2	Good Numbers (hard version) binary search, greedy, math, meet-in-the-middle	1500	x12191
1131A	Sea Battle math	800	x12180
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12098
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12073
460B	Little Dima and Equation brute force, implementation, math, number theory	1500	x12068
1076C	Meme Problem binary search, math	1300	x12045
534A	Exam constructive algorithms, implementation, math	1100	x12003
1753B	Factorial Divisibility math, number theory	1600	x11976
1007A	Reorder the Array combinatorics, data structures, math, sortings, two pointers	1300	x11971
1805C	Place for a Selfie binary search, data structures, geometry, math	1400	x11963
721B	Passwords implementation, math, sortings, strings	1100	x11963
841B	Godsend games, math	1100	x11939
1616C	Representative Edges brute force, geometry, implementation, math	1500	x11937
1209A	Paint the Numbers greedy, implementation, math	800	x11921
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x11900
1942B	Bessie and MEX constructive algorithms, math	1100	x11899
1081A	Definite Game constructive algorithms, math	800	x11875
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x11848
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x11844
1537D	Deleting Divisors games, math, number theory	1700	x11814
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11811
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x11801
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x11765
1299A	Anu Has a Function brute force, greedy, math	1500	x11737
1108C	Nice Garland brute force, greedy, math	1300	x11734
931A	Friends Meeting brute force, greedy, implementation, math	800	x11677
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x11676
1920C	Partitioning the Array brute force, math, number theory	1600	x11659
1673C	Palindrome Basis brute force, dp, math, number theory	1500	x11626
1569C	Jury Meeting combinatorics, math	1500	x11623
1823C	Strongly Composite greedy, math, number theory	1300	x11615
1884B	Haunted House binary search, greedy, math, two pointers	1100	x11580
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11570
701B	Cells Not Under Attack data structures, math	1200	x11564
1169A	Circle Metro implementation, math	900	x11520
1136B	Nastya Is Playing Computer Games constructive algorithms, math	1000	x11520
1307C	Cow and Message brute force, dp, math, strings	1500	x11513
1774B	Coloring constructive algorithms, greedy, math	1500	x11504
712A	Memory and Crow implementation, math	800	x11503
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11489
1811E	Living Sequence binary search, dp, math, number theory	1500	x11480
1080B	Margarite and the best present math	900	x11468
322B	Ciel and Flowers combinatorics, math	1600	x11467
1804C	Pull Your Luck brute force, greedy, math, number theory	1500	x11454
1857E	Power of Points math, sortings	1500	x11418
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x11372
1799A	Recent Actions data structures, greedy, implementation, math	800	x11334
1220B	Multiplication Table math, number theory	1300	x11325
987B	High School: Become Human math	1100	x11319
1153A	Serval and Bus brute force, math	1000	x11303
1294D	MEX maximizing data structures, greedy, implementation, math	1600	x11290
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11285
702B	Powers of Two brute force, data structures, implementation, math	1500	x11285
1228B	Filling the Grid implementation, math	1400	x11284
1178C	Tiles combinatorics, greedy, math	1300	x11266
1215A	Yellow Cards greedy, implementation, math	1000	x11244
1141C	Polycarp Restores Permutation math	1500	x11210
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11184
546D	Soldier and Number Game constructive algorithms, dp, math, number theory	1700	x11182
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11120
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11112
952A	Quirky Quantifiers math	800	x11100
1271B	Blocks greedy, math	1300	x11086
1068B	LCM math, number theory	1200	x11040
312B	Archer math, probabilities	1300	x11031
787A	The Monster brute force, math, number theory	1200	x11023
1213D2	Equalizing by Division (hard version) brute force, math, sortings	1600	x11016
1581B	Diameter of Graph constructive algorithms, graphs, greedy, math	1200	x11009
1099B	Squares and Segments binary search, constructive algorithms, math	1100	x10973
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x10965
1558A	Charmed by the Game brute force, math	1300	x10911
246B	Increase and Decrease greedy, math	1300	x10899