Problemset - Codeforces

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Problems

#	Name
1992E	Novice's Mistake brute force, constructive algorithms, implementation, math, strings	1700	x7695
1989C	Two Movies greedy, math	1400	x15740
1987D	World is Mine dp, games	1800	x6055
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x7581
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x13533
1985H1	Maximize the Largest Component (Easy Version) brute force, data structures, dfs and similar, dsu, graphs, implementation	1700	x4736
1985G	D-Function combinatorics, math, number theory	1600	x7955
1985F	Final Boss binary search, data structures	1500	x13121
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x6545
1983D	Swap Dilemma constructive algorithms, data structures, divide and conquer, greedy, math, sortings	1700	x7109
1983C	Have Your Cake and Eat It Too binary search, brute force, greedy, implementation	1400	x10941
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x6221
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x4624
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x9325
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x12953
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x5896
1978D	Elections data structures, greedy, implementation, math	1600	x9809
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x9285
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x5353
1974E	Money Buys Happiness dp	1800	x7122
1974D	Ingenuity-2 constructive algorithms, greedy, implementation	1400	x13548
1974C	Beautiful Triple Pairs combinatorics, data structures	1400	x14523
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x7600
1971G	XOUR data structures, dsu, sortings	1700	x8305
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x8934
1971E	Find the Car binary search, math, sortings	1500	x12754
1970E1	Trails (Easy) dp	1800	x1688
1970C2	Game on Tree (Medium) dfs and similar, dp, games, trees	1700	x2149
1970C1	Game on Tree (Easy) games	1400	x2797
1969C	Minimizing the Sum dp, implementation	1700	x7738
1968F	Equal XOR Segments binary search, data structures	1800	x4933
1968E	Cells Arrangement constructive algorithms	1600	x9553
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x12153
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x11387
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6084
1965A	Everything Nim games, greedy, math, sortings	1400	x12445
1958D	Staircase *special problem	1600	x439
1958C	Firewood *special problem	1500	x611
1958B	Clock in the Pool *special problem, math	1400	x772
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x8871
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x12070
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6585
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x8037
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x14384
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5603
1951C	Ticket Hoarding greedy, math, sortings	1400	x10880
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x8495
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x13412
1949I	Disks dfs and similar, geometry, graph matchings, graphs	1800	x1521
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x2647
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x8834
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x10029
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x7621
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5877
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5603
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x8991
1938H	Pho Restaurant	1600	x1963
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x7011
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7811
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7736
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6403
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x10586
1932E	Final Countdown implementation, math, number theory	1600	x7621
1932D	Card Game greedy, implementation	1400	x10823
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x14901
1931F	Chat Screenshots combinatorics, dfs and similar, graphs	1700	x7524
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x14634
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3918
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6752
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x14118
1928C	Physical Education Lesson brute force, math, number theory	1600	x8074
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x13303
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x11157
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x13183
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6359
1923C	Find B constructive algorithms, greedy	1400	x14225
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7383
1921E	Eat the Chip brute force, games, greedy, math	1600	x9375
1920C	Partitioning the Array brute force, math, number theory	1600	x12729
1919C	Grouping Increases data structures, dp, greedy	1400	x17912
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x13356
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9912
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8251
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x5907
1915F	Greetings data structures, divide and conquer, sortings	1500	x12693
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x11827
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x11717
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2245
1910D	Remove and Add *special problem, greedy	1800	x342
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x613
1910B	Security Guard *special problem, greedy	1600	x652
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10613
1907F	Shift and Reverse greedy, sortings	1800	x4643
1907E	Good Triples brute force, combinatorics, number theory	1600	x9590
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x13055
1906M	Triangle Construction greedy, math	1700	x2485
1905C	Largest Subsequence greedy, strings	1400	x11640
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4124
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6254
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x11833

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