Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
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Problems

#	Name
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x9752
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x12998
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x7172
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x8709
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x15568
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x6254
1951C	Ticket Hoarding greedy, math, sortings	1400	x11751
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x9255
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x14584
1949I	Disks dfs and similar, geometry, graph matchings, graphs	1800	x1893
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x3373
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x9546
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x11067
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x8280
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x6215
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x6116
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x9826
1938H	Pho Restaurant	1600	x2180
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x7541
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x8333
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x8274
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6875
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x11371
1932E	Final Countdown implementation, math, number theory	1600	x8337
1932D	Card Game greedy, implementation	1400	x11605
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x15952
1931F	Chat Screenshots combinatorics, dfs and similar, graphs	1700	x8186
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x16234
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x4170
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x7180
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x15121
1928C	Physical Education Lesson brute force, math, number theory	1600	x8696
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x14228
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x12113
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x14133
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6920
1923C	Find B constructive algorithms, greedy	1400	x15355
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7821
1921E	Eat the Chip brute force, games, greedy, math	1600	x9923
1920C	Partitioning the Array brute force, math, number theory	1600	x13936
1919C	Grouping Increases data structures, dp, greedy	1400	x19428
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x14230
1917C	Watering an Array brute force, greedy, implementation, math	1600	x10620
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8606
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x6556
1915F	Greetings data structures, divide and conquer, sortings	1500	x14109
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x12629
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x12405
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2587
1910D	Remove and Add *special problem, greedy	1800	x360
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x641
1910B	Security Guard *special problem, greedy	1600	x682
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x11357
1907F	Shift and Reverse greedy, sortings	1800	x4982
1907E	Good Triples brute force, combinatorics, number theory	1600	x10529
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x14619
1906M	Triangle Construction greedy, math	1700	x2801
1905C	Largest Subsequence greedy, strings	1400	x12482
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4528
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6907
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x13642
1903D1	Maximum And Queries (easy version) binary search, bitmasks, brute force, greedy	1700	x5839
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x12137
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x7134
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x12162
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7811
1898C	Colorful Grid constructive algorithms	1700	x5631
1898B	Milena and Admirer greedy, math	1500	x12142
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5871
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9794
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x11387
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x9032
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x12562
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x13634
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7485
1886C	Decreasing String implementation, strings	1600	x11759
1884C	Medium Design brute force, data structures, dp, greedy, sortings	1700	x6205
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x11384
1883F	You Are So Beautiful data structures	1400	x9710
1883E	Look Back bitmasks, greedy	1700	x8253
1883D	In Love data structures, greedy	1500	x11735
1882C	Card Game brute force, greedy	1500	x12546
1881F	Minimum Maximum Distance dfs and similar, dp, graphs, shortest paths, trees	1700	x7129
1881E	Block Sequence dp	1500	x14711
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x7582
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x13202
1878D	Reverse Madness data structures, greedy	1600	x8517
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x8457
1875D	Jellyfish and Mex dp	1600	x8918
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11923
1873H	Mad City dfs and similar, dsu, games, graphs, shortest paths, trees	1700	x7573
1873G	ABBC or BACB constructive algorithms, greedy	1500	x13625
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x6459
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x14010
1870D	Prefix Purchase greedy, implementation, sortings	1800	x7098
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x7098
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5881
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7850
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6861
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9607