Problemset - Codeforces

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Pinely Round 4 (Div. 1 + Div. 2)
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Problems

#	Name
1931D	Divisible Pairs combinatorics, math, number theory	1300	x17439
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3918
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6754
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4474
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x14118
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x4016
1928C	Physical Education Lesson brute force, math, number theory	1600	x8075
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x4131
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x13303
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x19936
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3305
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x11159
1926D	Vlad and Division bitmasks, greedy	1300	x14700
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3435
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x13185
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6360
1923C	Find B constructive algorithms, greedy	1400	x14225
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7383
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5459
1922C	Closest Cities greedy, implementation, math	1300	x17751
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3651
1921E	Eat the Chip brute force, games, greedy, math	1600	x9377
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5345
1920C	Partitioning the Array brute force, math, number theory	1600	x12731
1919C	Grouping Increases data structures, dp, greedy	1400	x17912
1918D	Blocking Elements binary search, data structures, dp, implementation, two pointers	1900	x4531
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x13357
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9912
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8252
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x5908
1915F	Greetings data structures, divide and conquer, sortings	1500	x12694
1915E	Romantic Glasses data structures, greedy, math	1300	x20099
1914F	Programming Competition dfs and similar, dp, graph matchings, greedy, trees	1900	x3903
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x11827
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x11717
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x14380
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2246
1912D	Divisibility Test math	1900	x1391
1912A	Accumulator Apex data structures, implementation, sortings	1900	x1969
1910D	Remove and Add *special problem, greedy	1800	x342
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x613
1910B	Security Guard *special problem, greedy	1600	x652
1909I	Short Permutation Problem combinatorics, dp, fft, math	1900	x116
1909D	Split Plus K greedy, math, number theory	1900	x4219
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10620
1907F	Shift and Reverse greedy, sortings	1800	x4643
1907E	Good Triples brute force, combinatorics, number theory	1600	x9591
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x13056
1906M	Triangle Construction greedy, math	1700	x2485
1906E	Merge Not Sort constructive algorithms, dp	1900	x1416
1905C	Largest Subsequence greedy, strings	1400	x11640
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4125
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6255
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x11837
1903D1	Maximum And Queries (easy version) binary search, bitmasks, brute force, greedy	1700	x5397
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x11253
1902E	Collapsing Strings data structures, strings, trees	1900	x4099
1902D	Robot Queries binary search, data structures, dp, implementation	1900	x3906
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13051
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6557
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x11405
1900C	Anji's Binary Tree dfs and similar, dp, trees	1300	x11037
1899G	Unusual Entertainment data structures, dfs and similar, dsu, shortest paths, sortings, trees, two pointers	1900	x3056
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7170
1899E	Queue Sort greedy, implementation, sortings	1300	x14804
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x12985
1898D	Absolute Beauty greedy, math	1900	x5006
1898C	Colorful Grid constructive algorithms	1700	x5218
1898B	Milena and Admirer greedy, math	1500	x11237
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5480
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9191
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5816
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x10606
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8527
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x11853
1891D	Suspicious logarithms binary search, brute force, math	1900	x3847
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x12379
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7081
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x12644
1887B	Time Travel binary search, graphs, shortest paths	1900	x2837
1886C	Decreasing String implementation, strings	1600	x10949
1884C	Medium Design brute force, data structures, dp, greedy, sortings	1700	x5836
1883G2	Dances (Hard Version) binary search, greedy, sortings, two pointers	1900	x5161
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x10140
1883F	You Are So Beautiful data structures	1400	x8988
1883E	Look Back bitmasks, greedy	1700	x7680
1883D	In Love data structures, greedy	1500	x10889
1882D	Tree XOR bitmasks, dfs and similar, dp, greedy, trees	1900	x5214
1882C	Card Game brute force, greedy	1500	x11886
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15010
1881F	Minimum Maximum Distance dfs and similar, dp, graphs, shortest paths, trees	1700	x6485
1881E	Block Sequence dp	1500	x12961
1881D	Divide and Equalize math, number theory	1300	x16008
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x7050
1879C	Make it Alternating combinatorics, dp, greedy	1300	x16035
1878F	Vasilije Loves Number Theory brute force, math, number theory	1900	x3974
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x12008
1878D	Reverse Madness data structures, greedy	1600	x8000
1876B	Effects of Anti Pimples combinatorics, number theory, sortings	1500	x7959
1875D	Jellyfish and Mex dp	1600	x8199