Problemset - Codeforces

→ Pay attention

Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
13:23:08
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1879A	Rigged! greedy	800	x23247
1878C	Vasilije in Cacak math	900	x34000
1878B	Aleksa and Stack constructive algorithms, math	800	x31649
1878A	How Much Does Daytona Cost? greedy	800	x45860
1877A	Goals of Victory math	800	x24512
1876A	Helmets in Night Light greedy, sortings	1000	x18541
1875A	Jellyfish and Undertale brute force, greedy	900	x26475
1873D	1D Eraser greedy, implementation, two pointers	800	x35757
1873C	Target Practice implementation, math	800	x41978
1873B	Good Kid brute force, greedy, math	800	x49824
1873A	Short Sort brute force, implementation	800	x55504
1872B	The Corridor or There and Back Again greedy, implementation	900	x28121
1872A	Two Vessels brute force, greedy, math	800	x39482
1870A	MEXanized Array constructive algorithms, greedy, math	800	x19137
1869A	Make It Zero constructive algorithms	900	x22392
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x20054
1866A	Ambitious Kid math	800	x23305
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20401
1863A	Channel greedy, implementation	800	x17977
1862B	Sequence Game constructive algorithms	800	x33072
1862A	Gift Carpet dp, greedy, implementation, strings	800	x32739
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x21585
1861A	Prime Deletion constructive algorithms, math	800	x24026
1860A	Not a Substring constructive algorithms, strings	900	x21846
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x27926
1859A	United We Stand constructive algorithms, math, number theory	800	x33521
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x23286
1858A	Buttons games, greedy, math	800	x39847
1857A	Array Coloring greedy, math	800	x49664
1856B	Good Arrays implementation, math	900	x24564
1856A	Tales of a Sort implementation	800	x26698
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x27498
1855A	Dalton the Teacher greedy, math	800	x28262
1853A	Desorting brute force, greedy, math	800	x32880
1851C	Tiles Comeback greedy	1000	x23570
1851B	Parity Sort greedy, sortings, two pointers	800	x29552
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29666
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x38075
1850C	Word on the Paper implementation, strings	800	x44976
1850B	Ten Words of Wisdom implementation, sortings	800	x43408
1850A	To My Critics implementation, sortings	800	x57728
1849B	Monsters greedy, math, sortings	1000	x26617
1849A	Morning Sandwich implementation, math	800	x29869
1848A	Vika and Her Friends games, math	900	x16955
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20172
1847A	The Man who became a God greedy, sortings	800	x22074
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x27013
1846A	Rudolph and Cut the Rope implementation, math	800	x32624
1845B	Come Together geometry, implementation, math	900	x21760
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28325
1844B	Permutations & Primes constructive algorithms, math	1000	x18337
1844A	Subtraction Game constructive algorithms, games	800	x24664
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x33691
1843B	Long Long greedy, math, two pointers	800	x29298
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x34467
1842A	Tenzing and Tsondu games, math	800	x19889
1841B	Keep it Beautiful implementation	1000	x21643
1841A	Game with Board constructive algorithms, games	800	x24788
1840C	Ski Resort combinatorics, math, two pointers	1000	x28583
1840A	Cipher Shifer implementation, strings, two pointers	800	x34374
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	x30661
1837A	Grasshopper on a Line constructive algorithms, math	800	x33450
1836A	Destroyer implementation, sortings	800	x20405
1834B	Maximum Strength greedy, math	1000	x15390
1834A	Unit Array greedy, math	800	x25289
1833C	Vlad Building Beautiful Array greedy, math	800	x26244
1833B	Restore the Weather greedy, sortings	900	x26827
1833A	Musical Puzzle implementation, strings	800	x32830
1832A	New Palindrome strings	800	x25914
1831B	Array merging constructive algorithms, greedy	1000	x21441
1831A	Twin Permutations constructive algorithms	800	x27705
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x26912
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x28901
1829B	Blank Space implementation	800	x47554
1829A	Love Story implementation, strings	800	x52400
1828B	Permutation Swap math, number theory	900	x23799
1828A	Divisible Array constructive algorithms, math	800	x23798
1825B	LuoTianyi and the Table greedy, math	1000	x14789
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x19740
1823B	Sort with Step brute force, math, sortings	900	x16147
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x16226
1822C	Bun Lover math	800	x23164
1822B	Karina and Array greedy, math, sortings	800	x24931
1822A	TubeTube Feed brute force, implementation	800	x24433
1821A	Matching combinatorics, math	800	x19972
1820A	Yura's New Name implementation, strings	800	x16792
1818B	Indivisible constructive algorithms	900	x15140
1818A	Politics greedy, implementation	800	x13031
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x15394
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17679
1814A	Coins implementation, math	800	x29870
1811B	Conveyor Belts implementation, math	1000	x20526
1811A	Insert Digit greedy, math, strings	800	x31324
1810B	Candies constructive algorithms, math, number theory	800	x17638
1810A	Beautiful Sequence brute force, greedy	800	x20822
1809B	Points on Plane binary search, greedy, math	1000	x20118
1809A	Garland implementation	800	x24050