Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x56
1912F	Fugitive Frenzy math, probabilities	3100	x109
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x837
1912D	Divisibility Test math	1900	x1387
1912B	Blueprint for Seating combinatorics, divide and conquer, math	2100	x972
1909I	Short Permutation Problem combinatorics, dp, fft, math	1900	x115
1909F2	Small Permutation Problem (Hard Version) combinatorics, dp, math	2500	x873
1909F1	Small Permutation Problem (Easy Version) brute force, combinatorics, dp, math	2200	x1706
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1308
1909D	Split Plus K greedy, math, number theory	1900	x4186
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10548
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x15402
1909A	Distinct Buttons implementation, math	800	x16075
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x19291
1906M	Triangle Construction greedy, math	1700	x2470
1906K	Deck-Building Game divide and conquer, math	2500	x274
1905E	One-X combinatorics, dfs and similar, dp, math, trees	2400	x901
1905D	Cyclic MEX data structures, implementation, math, two pointers	2000	x3654
1905A	Constructive Problems constructive algorithms, math	800	x22416
1903E	Geo Game greedy, interactive, math	2000	x1905
1902F	Trees and XOR Queries Again data structures, dfs and similar, divide and conquer, graphs, implementation, math, trees	2400	x947
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13010
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6527
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x11275
1901B	Chip and Ribbon greedy, math	1100	x14491
1901A	Line Trip greedy, math	800	x28031
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x3943
1900B	Laura and Operations dp, math	900	x16774
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12925
1899A	Game with Integers games, math, number theory	800	x41402
1898D	Absolute Beauty greedy, math	1900	x4991
1898B	Milena and Admirer greedy, math	1500	x11145
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x98
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x87
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x693
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5464
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x692
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5798
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x10576
1895B	Points and Minimum Distance greedy, math, sortings	800	x20087
1895A	Treasure Chest math	800	x23947
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x798
1891D	Suspicious logarithms binary search, brute force, math	1900	x3838
1891B	Deja Vu brute force, math, sortings	1100	x16880
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7039
1887D	Split binary search, data structures, divide and conquer, dsu, math, trees, two pointers	2700	x846
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1390
1886D	Monocarp and the Set combinatorics, data structures, math	2100	x3448
1886B	Fear of the Dark binary search, geometry, math	1200	x15696
1886A	Sum of Three brute force, constructive algorithms, math	800	x25245
1884E	Hard Design greedy, implementation, math	2800	x271
1884D	Counting Rhyme dp, math, number theory	2100	x3031
1884B	Haunted House binary search, greedy, math, two pointers	1100	x12289
1884A	Simple Design brute force, greedy, math	800	x17079
1883C	Raspberries dp, math	1000	x24969
1883A	Morning math	800	x24913
1881D	Divide and Equalize math, number theory	1300	x15911
1881B	Three Threadlets math	900	x24666
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x7019
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3962
1878C	Vasilije in Cacak math	900	x30581
1878B	Aleksa and Stack constructive algorithms, math	800	x30781
1877C	Joyboard math, number theory	1200	x10568
1877A	Goals of Victory math	800	x20950
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11262
1874E	Jellyfish and Hack dp, math	3000	x294
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x680
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1558
1873F	Money Trees binary search, greedy, math, two pointers	1300	x14744
1873C	Target Practice implementation, math	800	x37856
1873B	Good Kid brute force, greedy, math	800	x46614
1872G	Replace With Product brute force, greedy, math	2000	x4115
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x6059
1872D	Plus Minus Permutation math	1200	x22422
1872C	Non-coprime Split math, number theory	1100	x22763
1872A	Two Vessels brute force, greedy, math	800	x38298
1870F	Lazy Numbers binary search, math	2900	x470
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x11152
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13844
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18822
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x15330
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1114
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2341
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6747
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3640
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x709
1866L	Lihmuf Balling binary search, brute force, math	2400	x665
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7457
1866A	Ambitious Kid math	800	x19853
1864H	Asterism Stream dp, math, matrices	3200	x277
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2520
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6543
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13079
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20069
1863G	Swaps combinatorics, dp, graphs, math	2800	x588
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1070
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2673
1863C	MEX Repetition implementation, math	1100	x13707
1863B	Split Sort greedy, math, sortings	1100	x14895
1862G	The Great Equalizer binary search, data structures, math, sortings	2000	x2761