Problemset - Codeforces

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Codeforces Round (Div. 2)
39:15:51
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Problems

#	Name
1992E	Novice's Mistake brute force, constructive algorithms, implementation, math, strings	1700	x7282
1989C	Two Movies greedy, math	1400	x15199
1987D	World is Mine dp, games	1800	x5866
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x7349
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x13202
1985H1	Maximize the Largest Component (Easy Version) brute force, data structures, dfs and similar, dsu, graphs, implementation	1700	x4629
1985G	D-Function combinatorics, math, number theory	1600	x7803
1985F	Final Boss binary search, data structures	1500	x12842
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x6453
1983D	Swap Dilemma constructive algorithms, data structures, divide and conquer, greedy, math, sortings	1700	x6902
1983C	Have Your Cake and Eat It Too binary search, brute force, greedy, implementation	1400	x10658
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x6092
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x4554
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x9181
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x12768
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x5823
1978D	Elections data structures, greedy, implementation, math	1600	x9648
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x9176
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x5283
1974E	Money Buys Happiness dp	1800	x7008
1974D	Ingenuity-2 constructive algorithms, greedy, implementation	1400	x13394
1974C	Beautiful Triple Pairs combinatorics, data structures	1400	x14376
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x7536
1971G	XOUR data structures, dsu, sortings	1700	x8244
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x8856
1971E	Find the Car binary search, math, sortings	1500	x12636
1970E1	Trails (Easy) dp	1800	x1650
1970C2	Game on Tree (Medium) dfs and similar, dp, games, trees	1700	x2097
1970C1	Game on Tree (Easy) games	1400	x2743
1969C	Minimizing the Sum dp, implementation	1700	x7668
1968F	Equal XOR Segments binary search, data structures	1800	x4894
1968E	Cells Arrangement constructive algorithms	1600	x9446
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x12056
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x11287
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6030
1965A	Everything Nim games, greedy, math, sortings	1400	x12322
1958D	Staircase *special problem	1600	x435
1958C	Firewood *special problem	1500	x599
1958B	Clock in the Pool *special problem, math	1400	x770
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x8810
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x12022
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6552
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x7974
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x14260
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5554
1951C	Ticket Hoarding greedy, math, sortings	1400	x10816
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x8442
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x13337
1949I	Disks dfs and similar, geometry, graph matchings, graphs	1800	x1481
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x2609
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x8782
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x9974
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x7585
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5858
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5573
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x8922
1938H	Pho Restaurant	1600	x1958
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6981
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7764
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7638
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6389
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x10502
1932E	Final Countdown implementation, math, number theory	1600	x7564
1932D	Card Game greedy, implementation	1400	x10767
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x14818
1931F	Chat Screenshots combinatorics, dfs and similar, graphs	1700	x7482
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x14535
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3898
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6729
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x14057
1928C	Physical Education Lesson brute force, math, number theory	1600	x8038
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x13222
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x11094
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x13112
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6333
1923C	Find B constructive algorithms, greedy	1400	x14154
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7351
1921E	Eat the Chip brute force, games, greedy, math	1600	x9336
1920C	Partitioning the Array brute force, math, number theory	1600	x12612
1919C	Grouping Increases data structures, dp, greedy	1400	x17815
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x13306
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9876
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8209
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x5875
1915F	Greetings data structures, divide and conquer, sortings	1500	x12631
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x11768
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x11663
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2229
1910D	Remove and Add *special problem, greedy	1800	x339
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x613
1910B	Security Guard *special problem, greedy	1600	x650
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10551
1907F	Shift and Reverse greedy, sortings	1800	x4622
1907E	Good Triples brute force, combinatorics, number theory	1600	x9534
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x12952
1906M	Triangle Construction greedy, math	1700	x2471
1905C	Largest Subsequence greedy, strings	1400	x11601
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4103
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6213
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x11734

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