Problemset - Codeforces

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Problems

#	Name
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x16189
1931C	Make Equal Again brute force, greedy, math	1000	x29409
1931B	Make Equal greedy	800	x32413
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2659
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x4166
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x7176
1930A	Maximise The Score greedy, sortings	800	x18708
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1722
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x15097
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x25426
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x31756
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1743
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x4330
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x17722
1927G	Paint Charges data structures, dp, greedy, math	2300	x1707
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x4459
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x21889
1927C	Choose the Different Ones! brute force, greedy, math	1000	x28211
1927B	Following the String constructive algorithms, greedy, strings	900	x33525
1927A	Make it White greedy, strings	800	x43953
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3651
1926D	Vlad and Division bitmasks, greedy	1300	x15731
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x20280
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x29013
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x14122
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x378
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6902
1923C	Find B constructive algorithms, greedy	1400	x15323
1923B	Monsters Attack! dp, greedy, implementation	1100	x17836
1923A	Moving Chips greedy, implementation	800	x24815
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7810
1922C	Closest Cities greedy, implementation, math	1300	x18711
1921E	Eat the Chip brute force, games, greedy, math	1600	x9914
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x21828
1921C	Sending Messages greedy, math	900	x29607
1921B	Arranging Cats greedy, implementation	800	x33983
1921A	Square greedy, math	800	x43785
1920B	Summation Game games, greedy, math, sortings	1100	x21103
1920A	Satisfying Constraints brute force, greedy, math	800	x27980
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x870
1919F1	Wine Factory (Easy Version) data structures, greedy	2300	x2210
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3922
1919C	Grouping Increases data structures, dp, greedy	1400	x19398
1919B	Plus-Minus Split greedy	800	x29849
1918F	Caterpillar on a Tree dfs and similar, graphs, greedy, implementation, sortings, trees	2500	x895
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x14209
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x24049
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x30404
1917C	Watering an Array brute force, greedy, implementation, math	1600	x10608
1916F	Group Division constructive algorithms, dfs and similar, graphs, greedy	2900	x499
1916E	Happy Life in University data structures, dfs and similar, greedy, trees	2300	x2285
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x18008
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x6542
1915E	Romantic Glasses data structures, greedy, math	1300	x22281
1915D	Unnatural Language Processing greedy, implementation, strings	900	x30601
1914F	Programming Competition dfs and similar, dp, graph matchings, greedy, trees	1900	x4186
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x12620
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x12400
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x22371
1914C	Quests greedy, math	1100	x24706
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x15208
1910G	Pool Records *special problem, greedy	2700	x59
1910F	Build Railway Stations *special problem, greedy, trees	2000	x178
1910D	Remove and Add *special problem, greedy	1800	x358
1910B	Security Guard *special problem, greedy	1600	x681
1909D	Split Plus K greedy, math, number theory	1900	x4497
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x11343
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1978
1907F	Shift and Reverse greedy, sortings	1800	x4972
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x20440
1906M	Triangle Construction greedy, math	1700	x2791
1905C	Largest Subsequence greedy, strings	1400	x12462
1905B	Begginer's Zelda greedy, trees	1100	x16600
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4514
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6889
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x15858
1903E	Geo Game greedy, interactive, math	2000	x2069
1903D2	Maximum And Queries (hard version) bitmasks, divide and conquer, dp, greedy	2500	x793
1903D1	Maximum And Queries (easy version) binary search, bitmasks, brute force, greedy	1700	x5826
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x12118
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12958
1903A	Halloumi Boxes brute force, greedy, sortings	800	x33942
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13987
1902B	Getting Points binary search, brute force, greedy	1100	x14622
1901E	Compressed Tree dfs and similar, dp, graphs, greedy, sortings, trees	2200	x1577
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x7128
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x12148
1901B	Chip and Ribbon greedy, math	1100	x15126
1901A	Line Trip greedy, math	800	x33828
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x29231
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7798
1899E	Queue Sort greedy, implementation, sortings	1300	x15754
1899C	Yarik and Array dp, greedy, two pointers	1100	x21694
1898E	Sofia and Strings data structures, greedy, sortings, strings, two pointers	2200	x2330
1898D	Absolute Beauty greedy, math	1900	x5330
1898B	Milena and Admirer greedy, math	1500	x12130
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x733
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9779
1896B	AB Flipping greedy, strings, two pointers	900	x15072
1895G	Two Characters, Two Colors binary search, data structures, dp, flows, greedy	3100	x195