Problemset - Codeforces

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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
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Problems

#	Name
1879A	Rigged! greedy	800	x23246
1878C	Vasilije in Cacak math	900	x33983
1878B	Aleksa and Stack constructive algorithms, math	800	x31648
1878A	How Much Does Daytona Cost? greedy	800	x45845
1877A	Goals of Victory math	800	x24499
1876A	Helmets in Night Light greedy, sortings	1000	x18534
1875A	Jellyfish and Undertale brute force, greedy	900	x26451
1873D	1D Eraser greedy, implementation, two pointers	800	x35752
1873C	Target Practice implementation, math	800	x41967
1873B	Good Kid brute force, greedy, math	800	x49788
1873A	Short Sort brute force, implementation	800	x55486
1872B	The Corridor or There and Back Again greedy, implementation	900	x28117
1872A	Two Vessels brute force, greedy, math	800	x39479
1870A	MEXanized Array constructive algorithms, greedy, math	800	x19132
1869A	Make It Zero constructive algorithms	900	x22386
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x20052
1866A	Ambitious Kid math	800	x23292
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20400
1863A	Channel greedy, implementation	800	x17976
1862B	Sequence Game constructive algorithms	800	x33062
1862A	Gift Carpet dp, greedy, implementation, strings	800	x32736
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x21584
1861A	Prime Deletion constructive algorithms, math	800	x24024
1860A	Not a Substring constructive algorithms, strings	900	x21843
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x27915
1859A	United We Stand constructive algorithms, math, number theory	800	x33508
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x23285
1858A	Buttons games, greedy, math	800	x39832
1857A	Array Coloring greedy, math	800	x49652
1856B	Good Arrays implementation, math	900	x24560
1856A	Tales of a Sort implementation	800	x26696
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x27491
1855A	Dalton the Teacher greedy, math	800	x28262
1853A	Desorting brute force, greedy, math	800	x32874
1851C	Tiles Comeback greedy	1000	x23568
1851B	Parity Sort greedy, sortings, two pointers	800	x29549
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29664
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x38057
1850C	Word on the Paper implementation, strings	800	x44971
1850B	Ten Words of Wisdom implementation, sortings	800	x43399
1850A	To My Critics implementation, sortings	800	x57700
1849B	Monsters greedy, math, sortings	1000	x26605
1849A	Morning Sandwich implementation, math	800	x29830
1848A	Vika and Her Friends games, math	900	x16955
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20171
1847A	The Man who became a God greedy, sortings	800	x22073
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x27011
1846A	Rudolph and Cut the Rope implementation, math	800	x32622
1845B	Come Together geometry, implementation, math	900	x21758
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28317
1844B	Permutations & Primes constructive algorithms, math	1000	x18336
1844A	Subtraction Game constructive algorithms, games	800	x24664
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x33687
1843B	Long Long greedy, math, two pointers	800	x29294
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x34462
1842A	Tenzing and Tsondu games, math	800	x19885
1841B	Keep it Beautiful implementation	1000	x21640
1841A	Game with Board constructive algorithms, games	800	x24788
1840C	Ski Resort combinatorics, math, two pointers	1000	x28570
1840A	Cipher Shifer implementation, strings, two pointers	800	x34372
1839A	The Good Array greedy, implementation, math	800	x17545
1838A	Blackboard List constructive algorithms, math	800	x21621
1837C	Best Binary String constructive algorithms, greedy	1000	x22224
1837B	Comparison String greedy	900	x30650
1837A	Grasshopper on a Line constructive algorithms, math	800	x33439
1836A	Destroyer implementation, sortings	800	x20404
1834B	Maximum Strength greedy, math	1000	x15389
1834A	Unit Array greedy, math	800	x25280
1833C	Vlad Building Beautiful Array greedy, math	800	x26243
1833B	Restore the Weather greedy, sortings	900	x26826
1833A	Musical Puzzle implementation, strings	800	x32829
1832A	New Palindrome strings	800	x25910
1831B	Array merging constructive algorithms, greedy	1000	x21430
1831A	Twin Permutations constructive algorithms	800	x27691
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x26904
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x28898
1829B	Blank Space implementation	800	x47533
1829A	Love Story implementation, strings	800	x52376
1828B	Permutation Swap math, number theory	900	x23791
1828A	Divisible Array constructive algorithms, math	800	x23793
1825B	LuoTianyi and the Table greedy, math	1000	x14788
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x19740
1823B	Sort with Step brute force, math, sortings	900	x16144
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x16224
1822C	Bun Lover math	800	x23163
1822B	Karina and Array greedy, math, sortings	800	x24929
1822A	TubeTube Feed brute force, implementation	800	x24428
1821A	Matching combinatorics, math	800	x19970
1820A	Yura's New Name implementation, strings	800	x16791
1818B	Indivisible constructive algorithms	900	x15135
1818A	Politics greedy, implementation	800	x13030
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x15392
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17677
1814A	Coins implementation, math	800	x29858
1811B	Conveyor Belts implementation, math	1000	x20523
1811A	Insert Digit greedy, math, strings	800	x31323
1810B	Candies constructive algorithms, math, number theory	800	x17638
1810A	Beautiful Sequence brute force, greedy	800	x20821
1809B	Points on Plane binary search, greedy, math	1000	x20115
1809A	Garland implementation	800	x24050