Problemset - Codeforces

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constructive algorithms

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Problems

#	Name
2036E	Reverse the Rivers binary search, constructive algorithms, data structures, greedy	1600	x6326
2035C	Alya and Permutation bitmasks, constructive algorithms, math	1400	x7898
2031C	Penchick and BBQ Buns constructive algorithms, math, number theory	1300	x8870
2026C	Action Figures binary search, brute force, constructive algorithms, data structures, greedy, implementation	1500	x8525
2026B	Black Cells binary search, brute force, constructive algorithms, greedy	1300	x11627
2023A	Concatenation of Arrays constructive algorithms, greedy, math, sortings	1300	x11891
2021C1	Adjust The Presentation (Easy Version) constructive algorithms, greedy	1300	x11374
2013C	Password Cracking constructive algorithms, interactive, strings	1400	x11596
2003C	Turtle and Good Pairs constructive algorithms, greedy, sortings, strings	1200	x18106
1991C	Absolute Zero constructive algorithms, greedy, math	1300	x14608
1990B	Array Craft constructive algorithms, greedy	1200	x16543
1988C	Increasing Sequence with Fixed OR bitmasks, constructive algorithms, greedy	1300	x16615
1983B	Corner Twist constructive algorithms, greedy, implementation, math	1200	x16140
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x10561
1980C	Sofia and the Lost Operations constructive algorithms, greedy	1300	x18654
1979C	Earning on Bets binary search, combinatorics, constructive algorithms, number theory	1200	x18832
1978C	Manhattan Permutations constructive algorithms, data structures, greedy, implementation, math	1300	x15003
1974D	Ingenuity-2 constructive algorithms, greedy, implementation	1400	x14868
1968E	Cells Arrangement constructive algorithms	1600	x10483
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x12979
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x17023
1935B	Informatics in MAC constructive algorithms	1200	x18690
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x20459
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x15096
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x14200
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x14120
1923C	Find B constructive algorithms, greedy	1400	x15322
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x20836
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x18006
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x11341
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x17461
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x14587
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x20440
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6888
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x12115
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12955
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13986
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x12147
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7798
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9776
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x13602
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x13365
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15610
1873G	ABBC or BACB constructive algorithms, greedy	1500	x13586
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x12135
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x11380
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13645
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9597
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x10889
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x17422
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x14283
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x19657
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19310
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12405
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x12096
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x14707
1837D	Bracket Coloring constructive algorithms, greedy	1400	x15137
1833D	Flipper brute force, constructive algorithms, greedy	1400	x13464
1822D	Super-Permutation constructive algorithms, math	1200	x16934
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10970
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7603
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x12969
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7700
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8672
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x13017
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12999
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x11452
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x10192
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7767
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x21011
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x15334
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x17458
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7735
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x14151
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7979
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x12117
1774B	Coloring constructive algorithms, greedy, math	1500	x12403
1772D	Absolute Sorting constructive algorithms, math	1400	x16135
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x14711
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x14311
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x10017
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9656
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x10479
1753A1	Make Nonzero Sum (easy version) constructive algorithms, dp, greedy	1300	x15094
1750C	Complementary XOR constructive algorithms, implementation	1400	x9617
1746C	Permutation Operations constructive algorithms, greedy, implementation, math	1300	x12893
1742F	Smaller constructive algorithms, greedy, strings	1500	x11888
1740D	Knowledge Cards constructive algorithms, data structures	1500	x8171
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x11122
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x9164
1738B	Prefix Sum Addicts constructive algorithms, greedy, math, sortings	1200	x15836
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5800
1733D1	Zero-One (Easy Version) constructive algorithms, greedy, math	1400	x13609
1733C	Parity Shuffle Sorting constructive algorithms, sortings	1300	x15790
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x11493
1713C	Build Permutation constructive algorithms, dp, math	1200	x17490
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10971
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x13735
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x9450
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x14470

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