Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
2 days
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Problems

#	Name
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3744
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6501
1930A	Maximise The Score greedy, sortings	800	x17384
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1540
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13515
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x24040
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x29344
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1578
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3823
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15608
1927G	Paint Charges data structures, dp, greedy, math	2300	x1517
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3878
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18687
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25941
1927B	Following the String constructive algorithms, greedy, strings	900	x30789
1927A	Make it White greedy, strings	800	x40188
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3052
1926D	Vlad and Division bitmasks, greedy	1300	x13923
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18502
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x27420
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12569
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x338
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6052
1923C	Find B constructive algorithms, greedy	1400	x13475
1923B	Monsters Attack! dp, greedy, implementation	1100	x16443
1923A	Moving Chips greedy, implementation	800	x23492
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7158
1922C	Closest Cities greedy, implementation, math	1300	x17093
1921E	Eat the Chip brute force, games, greedy, math	1600	x9030
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x20239
1921C	Sending Messages greedy, math	900	x27606
1921B	Arranging Cats greedy, implementation	800	x32230
1921A	Square greedy, math	800	x40393
1920B	Summation Game games, greedy, math, sortings	1100	x19485
1920A	Satisfying Constraints brute force, greedy, math	800	x26680
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x750
1919F1	Wine Factory (Easy Version) data structures, greedy	2300	x2046
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3635
1919C	Grouping Increases data structures, dp, greedy	1400	x17079
1919B	Plus-Minus Split greedy	800	x28948
1918F	Caterpillar on a Tree dfs and similar, graphs, greedy, implementation, sortings, trees	2500	x793
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12771
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x22359
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x28959
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9527
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x411
1916E	Happy Life in University data structures, dfs and similar, greedy, trees	2300	x2116
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x16855
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x5523
1915E	Romantic Glasses data structures, greedy, math	1300	x18898
1915D	Unnatural Language Processing greedy, implementation, strings	900	x28063
1914F	Programming Competition dfs and similar, dp, graph matchings, greedy, trees	1900	x3744
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x11391
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x11283
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x18628
1914C	Quests greedy, math	1100	x21198
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13909
1910G	Pool Records *special problem, greedy	2700	x53
1910F	Build Railway Stations *special problem, greedy, trees	2000	x164
1910D	Remove and Add *special problem, greedy	1800	x318
1910B	Security Guard *special problem, greedy	1600	x611
1909D	Split Plus K greedy, math, number theory	1900	x4050
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10146
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1778
1907F	Shift and Reverse greedy, sortings	1800	x4465
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x18687
1906M	Triangle Construction greedy, math	1700	x2369
1905C	Largest Subsequence greedy, strings	1400	x11172
1905B	Begginer's Zelda greedy, trees	1100	x15427
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x3896
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x5845
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x13204
1903E	Geo Game greedy, interactive, math	2000	x1822
1903D2	Maximum And Queries (hard version) bitmasks, divide and conquer, dp, greedy	2500	x716
1903D1	Maximum And Queries (easy version) binary search, bitmasks, brute force, greedy	1700	x5183
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x10564
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11572
1903A	Halloumi Boxes brute force, greedy, sortings	800	x25304
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12489
1902B	Getting Points binary search, brute force, greedy	1100	x13475
1901E	Compressed Tree dfs and similar, dp, graphs, greedy, sortings, trees	2200	x1398
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6289
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x10853
1901B	Chip and Ribbon greedy, math	1100	x14165
1901A	Line Trip greedy, math	800	x26102
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x22648
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x6826
1899E	Queue Sort greedy, implementation, sortings	1300	x14135
1899C	Yarik and Array dp, greedy, two pointers	1100	x18520
1898E	Sofia and Strings data structures, greedy, sortings, strings, two pointers	2200	x2076
1898D	Absolute Beauty greedy, math	1900	x4816
1898B	Milena and Admirer greedy, math	1500	x10650
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x660
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x8779
1896B	AB Flipping greedy, strings, two pointers	900	x13633
1895G	Two Characters, Two Colors binary search, data structures, dp, flows, greedy	3100	x178
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1470
1895B	Points and Minimum Distance greedy, math, sortings	800	x19760
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x829
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2466