Problemset - Codeforces

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Codeforces Round 964 (Div. 4)
01:58:56
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constructive algorithms

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Problems

#	Name
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x15145
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20104
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x75
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9316
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x10353
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x16762
1862B	Sequence Game constructive algorithms	800	x30765
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x20969
1861A	Prime Deletion constructive algorithms, math	800	x23638
1860A	Not a Substring constructive algorithms, strings	900	x21391
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x25994
1859A	United We Stand constructive algorithms, math, number theory	800	x31112
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22671
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x393
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6866
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13816
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x162
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x438
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4335
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29250
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8246
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3023
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18993
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x18580
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x26205
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x693
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x393
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x767
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1829
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12094
1844B	Permutations & Primes constructive algorithms, math	1000	x17900
1844A	Subtraction Game constructive algorithms, games	800	x24341
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4025
1841A	Game with Board constructive algorithms, games	800	x24535
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x930
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2308
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1200
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x11735
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x309
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x14112
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x16175
1838A	Blackboard List constructive algorithms, math	800	x21348
1837D	Bracket Coloring constructive algorithms, greedy	1400	x14252
1837C	Best Binary String constructive algorithms, greedy	1000	x21676
1837A	Grasshopper on a Line constructive algorithms, math	800	x31102
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x967
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5229
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x7114
1833D	Flipper brute force, constructive algorithms, greedy	1400	x13120
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1866
1831B	Array merging constructive algorithms, greedy	1000	x19855
1831A	Twin Permutations constructive algorithms	800	x25780
1828A	Divisible Array constructive algorithms, math	800	x23423
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x115
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x373
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x3763
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x16011
1822D	Super-Permutation constructive algorithms, math	1200	x16410
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1438
1818B	Indivisible constructive algorithms	900	x14620
1817D	Toy Machine constructive algorithms, games, implementation	2700	x738
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x4031
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x15065
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17426
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x218
1815C	Between constructive algorithms, dfs and similar, graphs, greedy	2200	x1930
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x2976
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10589
1812J	Unmysterious Language *special problem, constructive algorithms, strings		x5856
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x3981
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4629
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7320
1811C	Restore the Array constructive algorithms, greedy	1100	x19441
1810B	Candies constructive algorithms, math, number theory	800	x17354
1809D	Binary String Sorting constructive algorithms, greedy	1800	x6166
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x12475
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7453
1806B	Mex Master constructive algorithms, greedy	900	x17471
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8404
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12520
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12566
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1180
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x11137
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x9572
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7461
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x15483
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17234
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1090
1794B	Not Dividing constructive algorithms, greedy, math	900	x21205
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x19405
1793B	Fedya and Array constructive algorithms, math	1100	x15617
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x1098
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14809
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1637
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x822
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x16913
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x19723
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x666
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2287
1787A	Exponential Equation constructive algorithms, math	800	x18999