Problemset - Codeforces

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Codeforces Round (Div. 1 + Div. 2)
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Problems

#	Name
1974G	Money Buys Less Happiness Now data structures, greedy, sortings		x2250
1974A	Phone Desktop greedy, math		x24360
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x5728
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x10134
1972A	Contest Proposal brute force, greedy, two pointers	800	x18659
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x19824
1969F	Card Pairing dp, greedy, hashing, implementation	3000	x123
1969E	Unique Array binary search, data structures, divide and conquer, dp, greedy	2400	x979
1969D	Shop Game data structures, greedy, math, sortings	1900	x3438
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x14796
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x12012
1968B	Prefiquence greedy, two pointers	800	x23741
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x9624
1966A	Card Exchange constructive algorithms, games, greedy	800	x15028
1965C	Folding Strip constructive algorithms, greedy, strings	2300	x1466
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x5240
1965A	Everything Nim games, greedy, math, sortings	1400	x10677
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x15367
1957A	Stickogon constructive algorithms, greedy	800	x20419
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x689
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3309
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x10938
1956B	Nene and the Card Game games, greedy	800	x19142
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x19310
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6023
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x7333
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x18261
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1837
1954C	Long Multiplication greedy, math, number theory	1200	x16158
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x20853
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x46
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x202
1951F	Inversion Composition constructive algorithms, data structures, greedy	2500	x660
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3071
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4755
1951C	Ticket Hoarding greedy, math, sortings	1400	x9808
1951B	Battle Cows binary search, data structures, greedy	1200	x12307
1951A	Dual Trigger constructive algorithms, greedy, math	900	x16752
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7764
1949H	Division Avoidance greedy, math	3100	x75
1949G	Scooter graphs, greedy	2300	x656
1949F	Dating greedy, sortings, trees	2200	x783
1949C	Annual Ants' Gathering dfs and similar, dp, greedy, trees	1900	x1264
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x1995
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2651
1948B	Array Fix brute force, dp, greedy, implementation	1100	x20677
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4104
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x9280
1946B	Maximum Sum dp, greedy, math	1100	x18177
1946A	Median of an Array greedy, implementation, sortings	800	x23809
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x7058
1945D	Seraphim the Owl dp, greedy	1300	x12378
1945A	Setting up Camp greedy, math	800	x25017
1944A	Destroying Bridges graphs, greedy, math	800	x21460
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x243
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x371
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x1828
1943A	MEX Game 1 games, greedy	1300	x15564
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2460
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5535
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9675
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5263
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x30023
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x26717
1937B	Binary Path dp, greedy, implementation	1300	x13261
1936D	Bitwise Paradox binary search, bitmasks, data structures, greedy, two pointers	3100	x422
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1117
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6640
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x399
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1179
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7219
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1211
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3107
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6107
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16882
1934A	Too Min Too Max greedy, math	800	x23585
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x18014
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x35729
1932D	Card Game greedy, implementation	1400	x10051
1932A	Thorns and Coins dp, greedy, implementation	800	x27037
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13525
1931C	Make Equal Again brute force, greedy, math	1000	x26326
1931B	Make Equal greedy	800	x30216
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2383
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3717
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6460
1930A	Maximise The Score greedy, sortings	800	x17277
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1524
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13407
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23909
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x29132
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1560
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3786
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x15460
1927G	Paint Charges data structures, dp, greedy, math	2300	x1504
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3845
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18504
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25768
1927B	Following the String constructive algorithms, greedy, strings	900	x30624
1927A	Make it White greedy, strings	800	x39990

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