Problemset - Codeforces

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Codeforces Round 1101 (Div. 2)
01:22:55
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constructive algorithms

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Problems

#	Name
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4765
1841A	Game with Board constructive algorithms, games	800	x26021
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x1192
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2809
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1548
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x13474
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x384
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x17411
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x17828
1838A	Blackboard List constructive algorithms, math	800	x22703
1837D	Bracket Coloring constructive algorithms, greedy	1400	x22310
1837C	Best Binary String constructive algorithms, greedy	1000	x24652
1837A	Grasshopper on a Line constructive algorithms, math	800	x55908
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x1174
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x6414
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x10259
1833D	Flipper brute force, constructive algorithms, greedy	1400	x15139
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x2360
1831B	Array merging constructive algorithms, greedy	1000	x35752
1831A	Twin Permutations constructive algorithms	800	x47247
1828A	Divisible Array constructive algorithms, math	800	x25396
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x135
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x560
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x4324
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x17202
1822D	Super-Permutation constructive algorithms, math	1200	x19065
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1742
1818B	Indivisible constructive algorithms	900	x17125
1817D	Toy Machine constructive algorithms, games, implementation	2700	x1038
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x5141
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x16728
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x18893
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x316
1815C	Between constructive algorithms, dfs and similar, graphs, greedy	2200	x2365
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x3619
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x12502
1812J	Unmysterious Language *special problem, constructive algorithms, strings		x6293
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x4306
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4904
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x8677
1811C	Restore the Array constructive algorithms, greedy	1100	x22287
1810B	Candies constructive algorithms, math, number theory	800	x18969
1809D	Binary String Sorting constructive algorithms, greedy	1800	x7309
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x15250
1806C	Sequence Master brute force, constructive algorithms, math	1600	x8681
1806B	Mex Master constructive algorithms, greedy	900	x19824
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x9796
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x15332
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x15663
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1407
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x12798
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x14287
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x8964
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x25053
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x19541
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1380
1794B	Not Dividing constructive algorithms, greedy, math	900	x40734
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x33716
1793B	Fedya and Array constructive algorithms, math	1100	x17137
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x1319
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x17375
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1938
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x1175
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x19519
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x22412
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x805
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2742
1787A	Exponential Equation constructive algorithms, math	800	x20409
1784B	Letter Exchange constructive algorithms	1900	x3679
1783B	Matrix of Differences constructive algorithms, math	1100	x19365
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x49939
1781G	Diverse Coloring constructive algorithms, trees	3200	x273
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x10620
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x5848
1780A	Hayato and School constructive algorithms, greedy	800	x22719
1779G	The Game of the Century constructive algorithms, graphs, shortest paths	3000	x388
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1416
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x2047
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x9084
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x25097
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x24090
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x2386
1776F	Train Splitting constructive algorithms, graphs, greedy	1700	x4179
1776D	Teamwork constructive algorithms, greedy, math	2800	x462
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x876
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x21045
1775A2	Gardener and the Capybaras (hard version) constructive algorithms, greedy	900	x19970
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x20431
1774H	Maximum Permutation constructive algorithms	3500	x158
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x609
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x9284
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x13296
1774B	Coloring constructive algorithms, greedy, math	1500	x14029
1774A	Add Plus Minus Sign constructive algorithms, math	800	x23562
1773K	King's Puzzle constructive algorithms	1900	x1683
1773J	Jumbled Trees constructive algorithms, math	2900	x145
1773F	Football constructive algorithms	800	x4797
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1922
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2824
1772D	Absolute Sorting constructive algorithms, math	1400	x18597

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