Problemset - Codeforces

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Educational Codeforces Round 167 (Rated for Div. 2)
24:14:28
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Problems

#	Name
1901A	Line Trip greedy, math	800	x27044
1900B	Laura and Operations dp, math	900	x16498
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x23516
1899A	Game with Integers games, math, number theory	800	x40216
1898A	Milica and String brute force, implementation, strings	800	x15375
1896B	AB Flipping greedy, strings, two pointers	900	x13876
1896A	Jagged Swaps sortings	800	x20177
1895B	Points and Minimum Distance greedy, math, sortings	800	x19936
1895A	Treasure Chest math	800	x23778
1894B	Two Out of Three constructive algorithms	1000	x15103
1894A	Secret Sport implementation, strings	800	x18397
1891A	Sorting with Twos constructive algorithms, sortings	800	x18694
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x16950
1890A	Doremy's Paint 3 constructive algorithms	800	x23244
1886A	Sum of Three brute force, constructive algorithms, math	800	x24962
1884A	Simple Design brute force, greedy, math	800	x16815
1883C	Raspberries dp, math	1000	x24203
1883B	Chemistry strings	900	x28578
1883A	Morning math	800	x24618
1882A	Increasing Sequence greedy	800	x24758
1881B	Three Threadlets math	900	x24309
1881A	Don't Try to Count brute force, strings	800	x28761
1879B	Chips on the Board constructive algorithms, greedy	900	x21639
1879A	Rigged! greedy	800	x22597
1878C	Vasilije in Cacak math	900	x29885
1878B	Aleksa and Stack constructive algorithms, math	800	x30507
1878A	How Much Does Daytona Cost? greedy	800	x40599
1877A	Goals of Victory math	800	x20245
1876A	Helmets in Night Light greedy, sortings	1000	x15716
1875A	Jellyfish and Undertale brute force, greedy	900	x22957
1873D	1D Eraser greedy, implementation, two pointers	800	x33611
1873C	Target Practice implementation, math	800	x37045
1873B	Good Kid brute force, greedy, math	800	x45950
1873A	Short Sort brute force, implementation	800	x50587
1872B	The Corridor or There and Back Again greedy, implementation	900	x27108
1872A	Two Vessels brute force, greedy, math	800	x37995
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18705
1869A	Make It Zero constructive algorithms	900	x19612
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x19547
1866A	Ambitious Kid math	800	x19313
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19957
1863A	Channel greedy, implementation	800	x17628
1862B	Sequence Game constructive algorithms	800	x29844
1862A	Gift Carpet dp, greedy, implementation, strings	800	x31423
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x20614
1861A	Prime Deletion constructive algorithms, math	800	x23413
1860A	Not a Substring constructive algorithms, strings	900	x21145
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x25179
1859A	United We Stand constructive algorithms, math, number theory	800	x30276
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x22348
1858A	Buttons games, greedy, math	800	x35608
1857A	Array Coloring greedy, math	800	x44996
1856B	Good Arrays implementation, math	900	x23503
1856A	Tales of a Sort implementation	800	x26037
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x24736
1855A	Dalton the Teacher greedy, math	800	x27458
1853A	Desorting brute force, greedy, math	800	x29467
1851C	Tiles Comeback greedy	1000	x22689
1851B	Parity Sort greedy, sortings, two pointers	800	x28582
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x28991
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x33797
1850C	Word on the Paper implementation, strings	800	x42229
1850B	Ten Words of Wisdom implementation, sortings	800	x41306
1850A	To My Critics implementation, sortings	800	x52752
1849B	Monsters greedy, math, sortings	1000	x23678
1849A	Morning Sandwich implementation, math	800	x27340
1848A	Vika and Her Friends games, math	900	x16441
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19415
1847A	The Man who became a God greedy, sortings	800	x21796
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26373
1846A	Rudolph and Cut the Rope implementation, math	800	x31853
1845B	Come Together geometry, implementation, math	900	x21125
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x25409
1844B	Permutations & Primes constructive algorithms, math	1000	x17695
1844A	Subtraction Game constructive algorithms, games	800	x24112
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x31745
1843B	Long Long greedy, math, two pointers	800	x28356
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x33433
1842A	Tenzing and Tsondu games, math	800	x19582
1841B	Keep it Beautiful implementation	1000	x20926
1841A	Game with Board constructive algorithms, games	800	x24401
1840C	Ski Resort combinatorics, math, two pointers	1000	x25617
1840A	Cipher Shifer implementation, strings, two pointers	800	x33174
1839A	The Good Array greedy, implementation, math	800	x17200
1838A	Blackboard List constructive algorithms, math	800	x21225
1837C	Best Binary String constructive algorithms, greedy	1000	x21402
1837B	Comparison String greedy	900	x27498
1837A	Grasshopper on a Line constructive algorithms, math	800	x30199
1836A	Destroyer implementation, sortings	800	x20001
1834B	Maximum Strength greedy, math	1000	x14778
1834A	Unit Array greedy, math	800	x22361
1833C	Vlad Building Beautiful Array greedy, math	800	x25735
1833B	Restore the Weather greedy, sortings	900	x25744
1833A	Musical Puzzle implementation, strings	800	x31948
1832A	New Palindrome strings	800	x25113
1831B	Array merging constructive algorithms, greedy	1000	x19263
1831A	Twin Permutations constructive algorithms	800	x25032
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x24898
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x27638
1829B	Blank Space implementation	800	x42349