Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
16:07:37
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Before contest
Codeforces Round 941 (Div. 2)
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constructive algorithms

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Problems

#	Name
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x8546
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5529
1894B	Two Out of Three constructive algorithms	1000	x14638
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x811
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8023
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x11170
1891A	Sorting with Twos constructive algorithms, sortings	800	x18306
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x16594
1890A	Doremy's Paint 3 constructive algorithms	800	x21136
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x6693
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x11940
1887F	Minimum Segments constructive algorithms	3400	x112
1887E	Good Colorings binary search, constructive algorithms, graphs, interactive	3100	x329
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1560
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1320
1886A	Sum of Three brute force, constructive algorithms, math	800	x24432
1882E2	Two Permutations (Hard Version) constructive algorithms	3100	x280
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x950
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14200
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1179
1879B	Chips on the Board constructive algorithms, greedy	900	x21052
1878B	Aleksa and Stack constructive algorithms, math	800	x29712
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x215
1876C	Autosynthesis constructive algorithms, dfs and similar, graphs, greedy, sortings	2100	x2124
1873G	ABBC or BACB constructive algorithms, greedy	1500	x11579
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18440
1869A	Make It Zero constructive algorithms	900	x18384
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x72
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x244
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2262
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6405
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11107
1867F	Most Different Tree brute force, constructive algorithms, dfs and similar, greedy, hashing	2700	x399
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x2965
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3495
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5305
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x10499
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x15744
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x19146
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x252
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6307
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12540
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x14718
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19728
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x69
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x8895
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x9514
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x15931
1862B	Sequence Game constructive algorithms	800	x28421
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x19986
1861A	Prime Deletion constructive algorithms, math	800	x23029
1860A	Not a Substring constructive algorithms, strings	900	x20726
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x24117
1859A	United We Stand constructive algorithms, math, number theory	800	x29073
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x21863
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x379
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6649
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x13294
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x157
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x425
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4126
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x28545
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x7707
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2861
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18251
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x17874
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24413
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x637
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x367
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x736
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1680
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11577
1844B	Permutations & Primes constructive algorithms, math	1000	x17399
1844A	Subtraction Game constructive algorithms, games	800	x23799
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x3905
1841A	Game with Board constructive algorithms, games	800	x24169
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x893
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2212
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1141
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x11336
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x291
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x13381
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x15783
1838A	Blackboard List constructive algorithms, math	800	x21016
1837D	Bracket Coloring constructive algorithms, greedy	1400	x13252
1837C	Best Binary String constructive algorithms, greedy	1000	x21056
1837A	Grasshopper on a Line constructive algorithms, math	800	x28939
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x933
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4910
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6621
1833D	Flipper brute force, constructive algorithms, greedy	1400	x12638
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1784
1831B	Array merging constructive algorithms, greedy	1000	x18366
1831A	Twin Permutations constructive algorithms	800	x24039
1828A	Divisible Array constructive algorithms, math	800	x22855
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x106
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x356
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x3636
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x15774
1822D	Super-Permutation constructive algorithms, math	1200	x15851