Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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brute force

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Problems

#	Name
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2513
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2508
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2504
171D	Broken checker *special problem, brute force	1300	x2504
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2482
1029F	Multicolored Markers binary search, brute force, math, number theory	2000	x2465
815C	Karen and Supermarket brute force, dp, trees	2400	x2452
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x2452
846B	Math Show brute force, greedy	1800	x2450
1732C2	Sheikh (Hard Version) binary search, bitmasks, brute force, greedy, implementation, two pointers	2100	x2449
1185E	Polycarp and Snakes brute force, implementation	2000	x2437
1658D2	388535 (Hard Version) bitmasks, brute force, data structures, math	2300	x2430
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x2424
1411D	Grime Zoo brute force, greedy, implementation, strings	2100	x2421
637C	Promocodes with Mistakes *special problem, brute force, constructive algorithms, implementation	1400	x2409
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2408
940F	Machine Learning brute force, data structures	2600	x2406
538D	Weird Chess brute force, constructive algorithms, implementation	1800	x2406
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2391
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2386
1616E	Lexicographically Small Enough brute force, data structures, greedy, strings	2200	x2379
336C	Vasily the Bear and Sequence brute force, greedy, implementation, number theory	1800	x2362
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x2350
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2346
1526D	Kill Anton brute force, constructive algorithms, data structures, math, strings	2200	x2345
175A	Robot Bicorn Attack brute force, implementation	1400	x2334
547A	Mike and Frog brute force, greedy, implementation, math	2200	x2310
1641C	Anonymity Is Important binary search, brute force, data structures, dsu, greedy, sortings	2200	x2308
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2200	x2296
135B	Rectangle and Square brute force, geometry, math	1600	x2294
1646E	Power Board brute force, dp, math, number theory	2200	x2289
1248D1	The World Is Just a Programming Task (Easy Version) brute force, dp, greedy, implementation	2000	x2285
1822G2	Magic Triples (Hard Version) brute force, data structures, math, number theory	2200	x2282
778B	Bitwise Formula bitmasks, brute force, dfs and similar, expression parsing, implementation	1800	x2253
982D	Shark brute force, data structures, dsu, trees	1900	x2241
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2230
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x2228
526C	Om Nom and Candies brute force, greedy, math	2000	x2218
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2211
769D	k-Interesting Pairs Of Integers *special problem, bitmasks, brute force, meet-in-the-middle	1700	x2206
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2188
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2170
1808D	Petya, Petya, Petr, and Palindromes binary search, brute force, data structures, two pointers	2100	x2134
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2131
254B	Jury Size brute force, implementation	1500	x2126
1311E	Construct the Binary Tree brute force, constructive algorithms, trees	2200	x2115
767B	The Queue brute force, greedy	2100	x2104
442A	Borya and Hanabi bitmasks, brute force, implementation	1700	x2092
386B	Fly, freebies, fly! binary search, brute force, implementation	1400	x2082
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2078
38C	Blinds brute force	1400	x2078
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2076
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2075
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x2071
348C	Subset Sums brute force, data structures	2500	x2070
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2069
1461E	Water Level brute force, graphs, greedy, implementation, math	2200	x2059
18B	Platforms brute force, math	1700	x2055
1832E	Combinatorics Problem brute force, combinatorics, dp	2200	x2048
528D	Fuzzy Search bitmasks, brute force, fft	2500	x2044
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x2043
1491E	Fib-tree brute force, dfs and similar, divide and conquer, number theory, trees	2400	x2041
1712E1	LCM Sum (easy version) binary search, brute force, combinatorics, math, number theory, two pointers	2300	x2033
305B	Continued Fractions brute force, implementation, math	1700	x2032
177D1	Encrypting Messages brute force	1200	x2027
506D	Mr. Kitayuta's Colorful Graph brute force, dfs and similar, dsu, graphs	2400	x2021
340B	Maximal Area Quadrilateral brute force, geometry	2100	x2017
1783E	Game of the Year brute force, data structures, math, number theory	2300	x2014
1619F	Let's Play the Hat? brute force, constructive algorithms, greedy, math	2000	x1999
1166D	Cute Sequences binary search, brute force, greedy, math	2200	x1997
1654E	Arithmetic Operations brute force, data structures, graphs, math	2300	x1986
1500B	Two chandeliers binary search, brute force, chinese remainder theorem, math, number theory	2200	x1983
952B	A Map of the Cat brute force, interactive	1900	x1978
1705E	Mark and Professor Koro binary search, bitmasks, brute force, combinatorics, data structures, greedy	2300	x1977
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x1976
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x1975
990E	Post Lamps brute force, greedy	2100	x1973
452B	4-point polyline brute force, constructive algorithms, geometry, trees	1800	x1973
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x1969
1056E	Check Transcription brute force, data structures, hashing, strings	2100	x1961
58C	Trees brute force	1800	x1959
364D	Ghd brute force, math, probabilities	2900	x1949
1662I	Ice Cream Shop brute force, implementation, sortings		x1947
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x1940
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x1937
993B	Open Communication bitmasks, brute force	1900	x1928
1257F	Make Them Similar bitmasks, brute force, hashing, meet-in-the-middle	2400	x1926
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x1906
85D	Sum of Medians binary search, brute force, data structures, implementation	2300	x1905
1102F	Elongated Matrix binary search, bitmasks, brute force, dp, graphs	2000	x1897
120D	Three Sons brute force	1400	x1892
1607F	Robot on the Board 2 brute force, dfs and similar, graphs, implementation	2300	x1881
784E	Twisted Circuit *special problem, brute force, implementation	2000	x1869
1469E	A Bit Similar bitmasks, brute force, hashing, string suffix structures, strings, two pointers	2400	x1848
333D	Characteristics of Rectangles binary search, bitmasks, brute force, implementation, sortings	2100	x1843
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1833
49D	Game brute force, dp, implementation	1800	x1830
1622E	Math Test bitmasks, brute force, greedy	2200	x1829
1737D	Ela and the Wiring Wizard brute force, dp, graphs, greedy, implementation, shortest paths	2200	x1805
6D	Lizards and Basements 2 brute force, dp	2600	x1805