Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
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Problems

#	Name
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x480
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x2415
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x8694
1956B	Nene and the Card Game games, greedy	800	x16011
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x16189
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5064
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x6151
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x15514
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1378
1954C	Long Multiplication greedy, math, number theory	1200	x13361
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x17955
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x30
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x161
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x590
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2742
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4344
1951C	Ticket Hoarding greedy, math, sortings	1400	x8653
1951B	Battle Cows binary search, data structures, greedy	1200	x10970
1951A	Dual Trigger constructive algorithms, greedy, math	900	x15145
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x6914
1949H	Division Avoidance greedy, math		x63
1949G	Scooter graphs, greedy		x592
1949F	Dating greedy, sortings, trees		x675
1949C	Annual Ants' Gathering dfs and similar, dp, greedy, trees		x1051
1949B	Charming Meals binary search, brute force, greedy, sortings		x1500
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2466
1948B	Array Fix brute force, dp, greedy, implementation	1100	x19821
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x3791
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x8611
1946B	Maximum Sum dp, greedy, math	1100	x17171
1946A	Median of an Array greedy, implementation, sortings	800	x22712
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x6606
1945D	Seraphim the Owl dp, greedy	1300	x11507
1945A	Setting up Camp greedy, math	800	x23609
1944A	Destroying Bridges graphs, greedy, math	800	x20446
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x187
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x315
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1687
1943A	MEX Game 1 games, greedy	1300	x14622
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2290
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5231
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9038
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5009
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x28969
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x25718
1937B	Binary Path dp, greedy, implementation	1300	x12758
1936D	Bitwise Paradox binary search, bitmasks, data structures, greedy, two pointers	3100	x395
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1033
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6395
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x364
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1123
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x6942
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1149
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x2981
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x5902
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16222
1934A	Too Min Too Max greedy, math	800	x22948
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17361
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x34828
1932D	Card Game greedy, implementation	1400	x9615
1932A	Thorns and Coins dp, greedy, implementation	800	x26145
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13014
1931C	Make Equal Again brute force, greedy, math	1000	x25609
1931B	Make Equal greedy	800	x29601
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2321
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3621
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6284
1930A	Maximise The Score greedy, sortings	800	x16872
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1466
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x12996
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23519
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x28539
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1493
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3666
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x14954
1927G	Paint Charges data structures, dp, greedy, math	2300	x1461
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3662
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x17922
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25187
1927B	Following the String constructive algorithms, greedy, strings	900	x29896
1927A	Make it White greedy, strings	800	x39175
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x2860
1926D	Vlad and Division bitmasks, greedy	1300	x13208
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x17992
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x26927
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12109
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x314
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5725
1923C	Find B constructive algorithms, greedy	1400	x12795
1923B	Monsters Attack! dp, greedy, implementation	1100	x15892
1923A	Moving Chips greedy, implementation	800	x22952
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x6931
1922C	Closest Cities greedy, implementation, math	1300	x16633
1921E	Eat the Chip brute force, games, greedy, math	1600	x8763
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x19754
1921C	Sending Messages greedy, math	900	x26969
1921B	Arranging Cats greedy, implementation	800	x31716
1921A	Square greedy, math	800	x39471
1920B	Summation Game games, greedy, math, sortings	1100	x19058
1920A	Satisfying Constraints brute force, greedy, math	800	x26283

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