Problemset - Codeforces

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Problems

#	Name
1971E	Find the Car binary search, math, sortings	1500	x14767
1970E1	Trails (Easy) dp	1800	x2351
1970C2	Game on Tree (Medium) dfs and similar, dp, games, trees	1700	x2939
1970C1	Game on Tree (Easy) games	1400	x3648
1969C	Minimizing the Sum dp, implementation	1700	x9067
1968F	Equal XOR Segments binary search, data structures	1800	x5651
1968E	Cells Arrangement constructive algorithms	1600	x10674
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x13609
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x12786
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6900
1965A	Everything Nim games, greedy, math, sortings	1400	x14048
1958D	Staircase *special problem	1600	x547
1958C	Firewood *special problem	1500	x755
1958B	Clock in the Pool *special problem, math	1400	x927
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x9917
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x13205
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x7285
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x8835
1955D	Inaccurate Subsequence Search data structures, two pointers	1400	x15780
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x6378
1951C	Ticket Hoarding greedy, math, sortings	1400	x11975
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x9441
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x14883
1949I	Disks dfs and similar, geometry, graph matchings, graphs	1800	x1944
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x3517
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x9682
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x11261
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x8427
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x6273
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x6227
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x10006
1938H	Pho Restaurant	1600	x2219
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x7630
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x8443
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x8393
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x7011
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x11608
1932E	Final Countdown implementation, math, number theory	1600	x8491
1932D	Card Game greedy, implementation	1400	x11756
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x16179
1931F	Chat Screenshots combinatorics, dfs and similar, graphs	1700	x8294
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x16615
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x4231
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x7263
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x15308
1928C	Physical Education Lesson brute force, math, number theory	1600	x8803
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x14417
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x12391
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x14314
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x7038
1923C	Find B constructive algorithms, greedy	1400	x15618
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7897
1921E	Eat the Chip brute force, games, greedy, math	1600	x10041
1920C	Partitioning the Array brute force, math, number theory	1600	x14227
1919C	Grouping Increases data structures, dp, greedy	1400	x19792
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x14403
1917C	Watering an Array brute force, greedy, implementation, math	1600	x10750
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x8792
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x6720
1915F	Greetings data structures, divide and conquer, sortings	1500	x14535
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x12830
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x12599
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2671
1910D	Remove and Add *special problem, greedy	1800	x365
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x656
1910B	Security Guard *special problem, greedy	1600	x691
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x11512
1907F	Shift and Reverse greedy, sortings	1800	x5062
1907E	Good Triples brute force, combinatorics, number theory	1600	x10797
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x15115
1906M	Triangle Construction greedy, math	1700	x2841
1905C	Largest Subsequence greedy, strings	1400	x12626
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4592
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x7040
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x14104
1903D1	Maximum And Queries (easy version) binary search, bitmasks, brute force, greedy	1700	x5939
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x12378
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x7225
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x12329
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7960
1898C	Colorful Grid constructive algorithms	1700	x5687
1898B	Milena and Admirer greedy, math	1500	x12303
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5949
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9938
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x11512
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x9121
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x12686
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x13976
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7566
1886C	Decreasing String implementation, strings	1600	x11980
1884C	Medium Design brute force, data structures, dp, greedy, sortings	1700	x6282
1883G1	Dances (Easy version) binary search, greedy, two pointers	1400	x11753
1883F	You Are So Beautiful data structures	1400	x9875
1883E	Look Back bitmasks, greedy	1700	x8399
1883D	In Love data structures, greedy	1500	x12068
1882C	Card Game brute force, greedy	1500	x12682
1881F	Minimum Maximum Distance dfs and similar, dp, graphs, shortest paths, trees	1700	x7237
1881E	Block Sequence dp	1500	x15255
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x7694
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x13519