Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
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Problems

#	Name
1873C	Target Practice implementation, math	800	x42084
1873B	Good Kid brute force, greedy, math	800	x49919
1873A	Short Sort brute force, implementation	800	x55596
1872D	Plus Minus Permutation math	1200	x24688
1872C	Non-coprime Split math, number theory	1100	x23668
1872B	The Corridor or There and Back Again greedy, implementation	900	x28136
1872A	Two Vessels brute force, greedy, math	800	x39507
1870B	Friendly Arrays bitmasks, greedy, math	1200	x14325
1870A	MEXanized Array constructive algorithms, greedy, math	800	x19144
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x16529
1869A	Make It Zero constructive algorithms	900	x22445
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16886
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x20062
1866A	Ambitious Kid math	800	x23380
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x15478
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20418
1863C	MEX Repetition implementation, math	1100	x14151
1863B	Split Sort greedy, math, sortings	1100	x15408
1863A	Channel greedy, implementation	800	x17981
1862C	Flower City Fence binary search, data structures, implementation, sortings	1100	x21033
1862B	Sequence Game constructive algorithms	800	x33127
1862A	Gift Carpet dp, greedy, implementation, strings	800	x32766
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x21602
1861A	Prime Deletion constructive algorithms, math	800	x24036
1860B	Fancy Coins binary search, brute force, greedy, math	1200	x17118
1860A	Not a Substring constructive algorithms, strings	900	x21867
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x17146
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x27967
1859A	United We Stand constructive algorithms, math, number theory	800	x33583
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x23306
1858A	Buttons games, greedy, math	800	x39923
1857C	Assembly via Minimums greedy, sortings	1200	x26855
1857B	Maximum Rounding greedy, implementation, math	1100	x23211
1857A	Array Coloring greedy, math	800	x49743
1856B	Good Arrays implementation, math	900	x24583
1856A	Tales of a Sort implementation	800	x26714
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x27540
1855A	Dalton the Teacher greedy, math	800	x28270
1853B	Fibonaccharsis binary search, brute force, math	1200	x17589
1853A	Desorting brute force, greedy, math	800	x32945
1851C	Tiles Comeback greedy	1000	x23585
1851B	Parity Sort greedy, sortings, two pointers	800	x29570
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29670
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x23880
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x38144
1850C	Word on the Paper implementation, strings	800	x45035
1850B	Ten Words of Wisdom implementation, sortings	800	x43458
1850A	To My Critics implementation, sortings	800	x57817
1849B	Monsters greedy, math, sortings	1000	x26655
1849A	Morning Sandwich implementation, math	800	x29884
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x15501
1848A	Vika and Her Friends games, math	900	x16966
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20184
1847A	The Man who became a God greedy, sortings	800	x22077
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x19696
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19319
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x27027
1846A	Rudolph and Cut the Rope implementation, math	800	x32633
1845B	Come Together geometry, implementation, math	900	x21771
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28375
1844B	Permutations & Primes constructive algorithms, math	1000	x18350
1844A	Subtraction Game constructive algorithms, games	800	x24691
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x18330
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x33719
1843B	Long Long greedy, math, two pointers	800	x29318
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x34485
1842B	Tenzing and Books bitmasks, greedy, math	1100	x17432
1842A	Tenzing and Tsondu games, math	800	x19911
1841B	Keep it Beautiful implementation	1000	x21654
1841A	Game with Board constructive algorithms, games	800	x24798
1840C	Ski Resort combinatorics, math, two pointers	1000	x28640
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x22622
1840A	Cipher Shifer implementation, strings, two pointers	800	x34417
1839B	Lamps greedy, sortings	1100	x15251
1839A	The Good Array greedy, implementation, math	800	x17550
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x16537
1838A	Blackboard List constructive algorithms, math	800	x21629
1837C	Best Binary String constructive algorithms, greedy	1000	x22235
1837B	Comparison String greedy	900	x30712
1837A	Grasshopper on a Line constructive algorithms, math	800	x33507
1836B	Astrophysicists greedy, math	1100	x12714
1836A	Destroyer implementation, sortings	800	x20425
1834C	Game with Reversing games, greedy, math, strings	1200	x13462
1834B	Maximum Strength greedy, math	1000	x15396
1834A	Unit Array greedy, math	800	x25352
1833C	Vlad Building Beautiful Array greedy, math	800	x26260
1833B	Restore the Weather greedy, sortings	900	x26847
1833A	Musical Puzzle implementation, strings	800	x32846
1832C	Contrast Value greedy, implementation	1200	x21424
1832B	Maximum Sum brute force, sortings, two pointers	1100	x22666
1832A	New Palindrome strings	800	x25938
1831B	Array merging constructive algorithms, greedy	1000	x21473
1831A	Twin Permutations constructive algorithms	800	x27754
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x20441
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x26981
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x28934
1829B	Blank Space implementation	800	x47691
1829A	Love Story implementation, strings	800	x52532
1828B	Permutation Swap math, number theory	900	x23835
1828A	Divisible Array constructive algorithms, math	800	x23809