Problemset - Codeforces

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Codeforces Round (Div. 2)
46:08:11
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Difficulty: —

constructive algorithms

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Problems

#	Name
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x25684
1859A	United We Stand constructive algorithms, math, number theory	800	x30756
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22554
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x390
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6838
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13744
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x162
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x434
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4302
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29155
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8168
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2999
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18898
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x18489
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x25888
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x684
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x380
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x753
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1822
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12031
1844B	Permutations & Primes constructive algorithms, math	1000	x17825
1844A	Subtraction Game constructive algorithms, games	800	x24255
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4007
1841A	Game with Board constructive algorithms, games	800	x24487
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x920
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2280
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1190
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x11677
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x308
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13962
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x16108
1838A	Blackboard List constructive algorithms, math	800	x21307
1837D	Bracket Coloring constructive algorithms, greedy	1400	x14102
1837C	Best Binary String constructive algorithms, greedy	1000	x21572
1837A	Grasshopper on a Line constructive algorithms, math	800	x30717
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x956
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5174
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x7059
1833D	Flipper brute force, constructive algorithms, greedy	1400	x13047
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1846
1831B	Array merging constructive algorithms, greedy	1000	x19606
1831A	Twin Permutations constructive algorithms	800	x25454
1828A	Divisible Array constructive algorithms, math	800	x23376
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x114
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x372
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x3747
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x15970
1822D	Super-Permutation constructive algorithms, math	1200	x16332
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1434
1818B	Indivisible constructive algorithms	900	x14525
1817D	Toy Machine constructive algorithms, games, implementation	2700	x722
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x4003
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x15007
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17129
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x218
1815C	Between constructive algorithms, dfs and similar, graphs, greedy	2200	x1926
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x2958
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10532
1812J	Unmysterious Language *special problem, constructive algorithms, strings		x5847
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x3975
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4363
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7262
1811C	Restore the Array constructive algorithms, greedy	1100	x19342
1810B	Candies constructive algorithms, math, number theory	800	x17322
1809D	Binary String Sorting constructive algorithms, greedy	1800	x6121
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x12374
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7431
1806B	Mex Master constructive algorithms, greedy	900	x17394
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8369
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12422
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12474
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1174
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x11061
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x9501
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7433
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x15323
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17188
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1085
1794B	Not Dividing constructive algorithms, greedy, math	900	x20929
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x19177
1793B	Fedya and Array constructive algorithms, math	1100	x15558
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x1092
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14663
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1631
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x813
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x16817
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x19657
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x647
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2260
1787A	Exponential Equation constructive algorithms, math	800	x18956
1784B	Letter Exchange constructive algorithms	1900	x3272
1783B	Matrix of Differences constructive algorithms, math	1100	x17532
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x28648
1781G	Diverse Coloring constructive algorithms, trees	3200	x219
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7363
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4787
1780A	Hayato and School constructive algorithms, greedy	800	x21296
1779G	The Game of the Century constructive algorithms, graphs, shortest paths	3000	x309
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1237
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1718