Problemset - Codeforces

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Before contest
Codeforces Round 975 (Div. 1)
3 days

Before contest
Codeforces Round 975 (Div. 2)
3 days

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Difficulty: —

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Problems

#	Name
1921B	Arranging Cats greedy, implementation	800	x33485
1921A	Square greedy, math	800	x42562
1920A	Satisfying Constraints brute force, greedy, math	800	x27545
1919B	Plus-Minus Split greedy	800	x29622
1919A	Wallet Exchange games, math	800	x33154
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x23527
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x30001
1917A	Least Product constructive algorithms, math	800	x25263
1916A	2023 constructive algorithms, implementation, math, number theory	800	x25646
1915D	Unnatural Language Processing greedy, implementation, strings	900	x29953
1915C	Can I Square? binary search, implementation	800	x41722
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x41700
1915A	Odd One Out bitmasks, implementation	800	x56167
1914B	Preparing for the Contest constructive algorithms, math	800	x30147
1914A	Problemsolving Log implementation, strings	800	x31627
1913A	Rating Increase implementation	800	x23517
1912L	LOL Lovers strings	800	x6915
1909A	Distinct Buttons implementation, math	800	x16447
1907A	Rook implementation	800	x36451
1905A	Constructive Problems constructive algorithms, math	800	x22846
1904A	Forked! brute force, implementation	900	x19522
1903A	Halloumi Boxes brute force, greedy, sortings	800	x31445
1902A	Binary Imbalance constructive algorithms	800	x20963
1901A	Line Trip greedy, math	800	x31489
1900B	Laura and Operations dp, math	900	x17332
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x27279
1899A	Game with Integers games, math, number theory	800	x45278
1898A	Milica and String brute force, implementation, strings	800	x15951
1896B	AB Flipping greedy, strings, two pointers	900	x14665
1896A	Jagged Swaps sortings	800	x23556
1895B	Points and Minimum Distance greedy, math, sortings	800	x20424
1895A	Treasure Chest math	800	x24343
1894A	Secret Sport implementation, strings	800	x18887
1891A	Sorting with Twos constructive algorithms, sortings	800	x19178
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x17467
1890A	Doremy's Paint 3 constructive algorithms	800	x26293
1886A	Sum of Three brute force, constructive algorithms, math	800	x25750
1884A	Simple Design brute force, greedy, math	800	x17376
1883B	Chemistry strings	900	x31739
1883A	Morning math	800	x25558
1882A	Increasing Sequence greedy	800	x25266
1881B	Three Threadlets math	900	x25282
1881A	Don't Try to Count brute force, strings	800	x31581
1879B	Chips on the Board constructive algorithms, greedy	900	x22354
1879A	Rigged! greedy	800	x23073
1878C	Vasilije in Cacak math	900	x32591
1878B	Aleksa and Stack constructive algorithms, math	800	x31331
1878A	How Much Does Daytona Cost? greedy	800	x43966
1877A	Goals of Victory math	800	x23005
1875A	Jellyfish and Undertale brute force, greedy	900	x25137
1873D	1D Eraser greedy, implementation, two pointers	800	x34858
1873C	Target Practice implementation, math	800	x40180
1873B	Good Kid brute force, greedy, math	800	x48188
1873A	Short Sort brute force, implementation	800	x53498
1872B	The Corridor or There and Back Again greedy, implementation	900	x27798
1872A	Two Vessels brute force, greedy, math	800	x39010
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18984
1869A	Make It Zero constructive algorithms	900	x21451
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x19875
1866A	Ambitious Kid math	800	x21760
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20263
1863A	Channel greedy, implementation	800	x17898
1862B	Sequence Game constructive algorithms	800	x31974
1862A	Gift Carpet dp, greedy, implementation, strings	800	x32373
1861A	Prime Deletion constructive algorithms, math	800	x23823
1860A	Not a Substring constructive algorithms, strings	900	x21636
1859A	United We Stand constructive algorithms, math, number theory	800	x32261
1858A	Buttons games, greedy, math	800	x38152
1857A	Array Coloring greedy, math	800	x47912
1856B	Good Arrays implementation, math	900	x24209
1856A	Tales of a Sort implementation	800	x26437
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x26484
1855A	Dalton the Teacher greedy, math	800	x27899
1853A	Desorting brute force, greedy, math	800	x31657
1851B	Parity Sort greedy, sortings, two pointers	800	x29186
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29462
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x36552
1850C	Word on the Paper implementation, strings	800	x43946
1850B	Ten Words of Wisdom implementation, sortings	800	x42692
1850A	To My Critics implementation, sortings	800	x55603
1849A	Morning Sandwich implementation, math	800	x27855
1848A	Vika and Her Friends games, math	900	x16782
1847A	The Man who became a God greedy, sortings	800	x21980
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26835
1846A	Rudolph and Cut the Rope implementation, math	800	x32437
1845B	Come Together geometry, implementation, math	900	x21562
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x27200
1844A	Subtraction Game constructive algorithms, games	800	x24500
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x32921
1843B	Long Long greedy, math, two pointers	800	x28920
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x34121
1842A	Tenzing and Tsondu games, math	800	x19750
1841A	Game with Board constructive algorithms, games	800	x24663
1840A	Cipher Shifer implementation, strings, two pointers	800	x33919
1839A	The Good Array greedy, implementation, math	800	x17446
1838A	Blackboard List constructive algorithms, math	800	x21479
1837B	Comparison String greedy	900	x29452
1837A	Grasshopper on a Line constructive algorithms, math	800	x32209
1836A	Destroyer implementation, sortings	800	x20270
1834A	Unit Array greedy, math	800	x24230