Problemset - Codeforces

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brute force

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Problems

#	Name
725C	Hidden Word brute force, constructive algorithms, implementation, strings	1600	x2603
142A	Help Farmer brute force, math	1600	x2577
633D	Fibonacci-ish brute force, dp, hashing, implementation, math	2000	x2567
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2565
203B	Game on Paper brute force, implementation	1300	x2555
1559D2	Mocha and Diana (Hard Version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers	2500	x2537
599D	Spongebob and Squares brute force, math	1900	x2531
372B	Counting Rectangles is Fun brute force, divide and conquer, dp	1900	x2523
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2521
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2519
171D	Broken checker *special problem, brute force	1300	x2518
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2495
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x2477
1029F	Multicolored Markers binary search, brute force, math, number theory	2000	x2476
815C	Karen and Supermarket brute force, dp, trees	2400	x2470
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x2465
1732C2	Sheikh (Hard Version) binary search, bitmasks, brute force, greedy, implementation, two pointers	2100	x2463
846B	Math Show brute force, greedy	1800	x2454
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2450
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x2448
1658D2	388535 (Hard Version) bitmasks, brute force, data structures, math	2300	x2447
1185E	Polycarp and Snakes brute force, implementation	2000	x2443
940F	Machine Learning brute force, data structures	2600	x2443
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2200	x2436
1411D	Grime Zoo brute force, greedy, implementation, strings	2100	x2429
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2419
637C	Promocodes with Mistakes *special problem, brute force, constructive algorithms, implementation	1400	x2409
538D	Weird Chess brute force, constructive algorithms, implementation	1800	x2406
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2391
1616E	Lexicographically Small Enough brute force, data structures, greedy, strings	2200	x2389
336C	Vasily the Bear and Sequence brute force, greedy, implementation, number theory	1800	x2373
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2358
1526D	Kill Anton brute force, constructive algorithms, data structures, math, strings	2200	x2358
175A	Robot Bicorn Attack brute force, implementation	1400	x2345
1641C	Anonymity Is Important binary search, brute force, data structures, dsu, greedy, sortings	2200	x2333
1822G2	Magic Triples (Hard Version) brute force, data structures, math, number theory	2200	x2319
547A	Mike and Frog brute force, greedy, implementation, math	2200	x2314
1646E	Power Board brute force, dp, math, number theory	2200	x2302
135B	Rectangle and Square brute force, geometry, math	1600	x2298
1248D1	The World Is Just a Programming Task (Easy Version) brute force, dp, greedy, implementation	2000	x2290
526C	Om Nom and Candies brute force, greedy, math	2000	x2266
778B	Bitwise Formula bitmasks, brute force, dfs and similar, expression parsing, implementation	1800	x2261
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x2254
982D	Shark brute force, data structures, dsu, trees	1900	x2247
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2243
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2228
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2216
769D	k-Interesting Pairs Of Integers *special problem, bitmasks, brute force, meet-in-the-middle	1700	x2214
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2173
1808D	Petya, Petya, Petr, and Palindromes binary search, brute force, data structures, two pointers	2100	x2172
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2148
1311E	Construct the Binary Tree brute force, constructive algorithms, trees	2200	x2143
254B	Jury Size brute force, implementation	1500	x2134
1166D	Cute Sequences binary search, brute force, greedy, math	2200	x2127
767B	The Queue brute force, greedy	2100	x2109
348C	Subset Sums brute force, data structures	2500	x2099
386B	Fly, freebies, fly! binary search, brute force, implementation	1400	x2098
442A	Borya and Hanabi bitmasks, brute force, implementation	1700	x2094
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2093
38C	Blinds brute force	1400	x2089
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2085
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2080
1034B	Little C Loves 3 II brute force, constructive algorithms, flows, graph matchings	2200	x2075
528D	Fuzzy Search bitmasks, brute force, fft	2500	x2071
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2070
18B	Platforms brute force, math	1700	x2065
1832E	Combinatorics Problem brute force, combinatorics, dp	2200	x2062
1461E	Water Level brute force, graphs, greedy, implementation, math	2200	x2061
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x2056
177D1	Encrypting Messages brute force	1200	x2047
1712E1	LCM Sum (easy version) binary search, brute force, combinatorics, math, number theory, two pointers	2300	x2046
1491E	Fib-tree brute force, dfs and similar, divide and conquer, number theory, trees	2400	x2044
1783E	Game of the Year brute force, data structures, math, number theory	2300	x2034
506D	Mr. Kitayuta's Colorful Graph brute force, dfs and similar, dsu, graphs	2400	x2032
305B	Continued Fractions brute force, implementation, math	1700	x2032
340B	Maximal Area Quadrilateral brute force, geometry	2100	x2026
1619F	Let's Play the Hat? brute force, constructive algorithms, greedy, math	2000	x2020
952B	A Map of the Cat brute force, interactive	1900	x2003
1654E	Arithmetic Operations brute force, data structures, graphs, math	2300	x1996
1056E	Check Transcription brute force, data structures, hashing, strings	2100	x1989
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x1989
1500B	Two chandeliers binary search, brute force, chinese remainder theorem, math, number theory	2200	x1988
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x1985
1705E	Mark and Professor Koro binary search, bitmasks, brute force, combinatorics, data structures, greedy	2300	x1981
452B	4-point polyline brute force, constructive algorithms, geometry, trees	1800	x1980
1662I	Ice Cream Shop brute force, implementation, sortings		x1978
990E	Post Lamps brute force, greedy	2100	x1975
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x1971
364D	Ghd brute force, math, probabilities	2900	x1970
58C	Trees brute force	1800	x1965
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x1959
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x1958
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x1946
1257F	Make Them Similar bitmasks, brute force, hashing, meet-in-the-middle	2400	x1944
993B	Open Communication bitmasks, brute force	1900	x1930
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x1921
1102F	Elongated Matrix binary search, bitmasks, brute force, dp, graphs	2000	x1916
85D	Sum of Medians binary search, brute force, data structures, implementation	2300	x1913
1202E	You Are Given Some Strings... brute force, string suffix structures, strings	2400	x1910
120D	Three Sons brute force	1400	x1898