Problemset - Codeforces

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Problems

#	Name
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7010
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5194
1922C	Closest Cities greedy, implementation, math	1300	x16787
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x18947
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3420
1921E	Eat the Chip brute force, games, greedy, math	1600	x8865
1921C	Sending Messages greedy, math	900	x27193
1921A	Square greedy, math	800	x39783
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2345
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5077
1920C	Partitioning the Array brute force, math, number theory	1600	x11756
1920B	Summation Game games, greedy, math, sortings	1100	x19184
1920A	Satisfying Constraints brute force, greedy, math	800	x26417
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x771
1919A	Wallet Exchange games, math	800	x31654
1918G	Permutation of Given constructive algorithms, math	2700	x419
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12466
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x28664
1917E	Construct Matrix constructive algorithms, math	2500	x1262
1917D	Yet Another Inversions Problem combinatorics, data structures, dp, implementation, math, number theory	2300	x1651
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9347
1917A	Least Product constructive algorithms, math	800	x24136
1916H2	Matrix Rank (Hard Version) combinatorics, dp, math, matrices, string suffix structures	2700	x502
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x584
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x7868
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x16605
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23539
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24475
1915E	Romantic Glasses data structures, greedy, math	1300	x18321
1914G1	Light Bulbs (Easy Version) brute force, combinatorics, dfs and similar, dp, dsu, graphs, math, trees	2100	x1661
1914C	Quests greedy, math	1100	x20628
1914B	Preparing for the Contest constructive algorithms, math	800	x28478
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x54
1912F	Fugitive Frenzy math, probabilities	3100	x104
1912E	Evaluate It and Back Again constructive algorithms, implementation, math	2200	x769
1912D	Divisibility Test math	1900	x1301
1912B	Blueprint for Seating combinatorics, divide and conquer, math	2100	x918
1909I	Short Permutation Problem combinatorics, dp, fft, math	1900	x73
1909F2	Small Permutation Problem (Hard Version) combinatorics, dp, math	2500	x825
1909F1	Small Permutation Problem (Easy Version) brute force, combinatorics, dp, math	2200	x1630
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1242
1909D	Split Plus K greedy, math, number theory	1900	x3964
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x9907
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13777
1909A	Distinct Buttons implementation, math	800	x15687
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x18306
1906M	Triangle Construction greedy, math	1700	x2305
1906K	Deck-Building Game divide and conquer, math	2500	x263
1905E	One-X combinatorics, dfs and similar, dp, math, trees	2400	x844
1905D	Cyclic MEX data structures, implementation, math, two pointers	2000	x3472
1905A	Constructive Problems constructive algorithms, math	800	x21737
1903E	Geo Game greedy, interactive, math	2000	x1789
1902F	Trees and XOR Queries Again data structures, dfs and similar, divide and conquer, graphs, implementation, math, trees	2400	x891
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12183
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6120
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x10633
1901B	Chip and Ribbon greedy, math	1100	x13964
1901A	Line Trip greedy, math	800	x24995
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x3676
1900B	Laura and Operations dp, math	900	x15924
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12150
1899A	Game with Integers games, math, number theory	800	x37575
1898D	Absolute Beauty greedy, math	1900	x4702
1898B	Milena and Admirer greedy, math	1500	x10431
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x87
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x78
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x648
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5159
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x624
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5552
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x10069
1895B	Points and Minimum Distance greedy, math, sortings	800	x19619
1895A	Treasure Chest math	800	x23374
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x770
1891D	Suspicious logarithms binary search, brute force, math	1900	x3695
1891B	Deja Vu brute force, math, sortings	1100	x15666
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x6722
1887D	Split binary search, data structures, divide and conquer, dsu, math, trees, two pointers	2700	x809
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1328
1886D	Monocarp and the Set combinatorics, data structures, math	2100	x3313
1886B	Fear of the Dark binary search, geometry, math	1200	x15108
1886A	Sum of Three brute force, constructive algorithms, math	800	x24478
1884E	Hard Design greedy, implementation, math	2800	x262
1884D	Counting Rhyme dp, math, number theory	2100	x2794
1884B	Haunted House binary search, greedy, math, two pointers	1100	x11646
1884A	Simple Design brute force, greedy, math	800	x16419
1883C	Raspberries dp, math	1000	x22516
1883A	Morning math	800	x23805
1881D	Divide and Equalize math, number theory	1300	x14297
1881B	Three Threadlets math	900	x23554
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6557
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3698
1878C	Vasilije in Cacak math	900	x28288
1878B	Aleksa and Stack constructive algorithms, math	800	x29787
1877C	Joyboard math, number theory	1200	x10020
1877A	Goals of Victory math	800	x18618
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10752
1874E	Jellyfish and Hack dp, math	3000	x266
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x646
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1501