Problemset - Codeforces

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

#	Name
1872B	The Corridor or There and Back Again greedy, implementation	900	x28125
1872A	Two Vessels brute force, greedy, math	800	x39492
1870B	Friendly Arrays bitmasks, greedy, math	1200	x14320
1870A	MEXanized Array constructive algorithms, greedy, math	800	x19138
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x16518
1869A	Make It Zero constructive algorithms	900	x22419
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16882
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x20059
1866A	Ambitious Kid math	800	x23343
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x15465
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20409
1863C	MEX Repetition implementation, math	1100	x14148
1863B	Split Sort greedy, math, sortings	1100	x15406
1863A	Channel greedy, implementation	800	x17978
1862C	Flower City Fence binary search, data structures, implementation, sortings	1100	x21024
1862B	Sequence Game constructive algorithms	800	x33101
1862A	Gift Carpet dp, greedy, implementation, strings	800	x32755
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x21593
1861A	Prime Deletion constructive algorithms, math	800	x24030
1860B	Fancy Coins binary search, brute force, greedy, math	1200	x17112
1860A	Not a Substring constructive algorithms, strings	900	x21854
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x17143
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x27945
1859A	United We Stand constructive algorithms, math, number theory	800	x33551
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x23295
1858A	Buttons games, greedy, math	800	x39876
1857C	Assembly via Minimums greedy, sortings	1200	x26825
1857B	Maximum Rounding greedy, implementation, math	1100	x23207
1857A	Array Coloring greedy, math	800	x49697
1856B	Good Arrays implementation, math	900	x24574
1856A	Tales of a Sort implementation	800	x26704
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x27512
1855A	Dalton the Teacher greedy, math	800	x28265
1853B	Fibonaccharsis binary search, brute force, math	1200	x17586
1853A	Desorting brute force, greedy, math	800	x32905
1851C	Tiles Comeback greedy	1000	x23577
1851B	Parity Sort greedy, sortings, two pointers	800	x29565
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29668
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x23863
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x38113
1850C	Word on the Paper implementation, strings	800	x45018
1850B	Ten Words of Wisdom implementation, sortings	800	x43444
1850A	To My Critics implementation, sortings	800	x57773
1849B	Monsters greedy, math, sortings	1000	x26636
1849A	Morning Sandwich implementation, math	800	x29876
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x15487
1848A	Vika and Her Friends games, math	900	x16961
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20180
1847A	The Man who became a God greedy, sortings	800	x22077
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x19678
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19317
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x27022
1846A	Rudolph and Cut the Rope implementation, math	800	x32627
1845B	Come Together geometry, implementation, math	900	x21763
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28351
1844B	Permutations & Primes constructive algorithms, math	1000	x18347
1844A	Subtraction Game constructive algorithms, games	800	x24675
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x18323
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x33703
1843B	Long Long greedy, math, two pointers	800	x29312
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x34476
1842B	Tenzing and Books bitmasks, greedy, math	1100	x17420
1842A	Tenzing and Tsondu games, math	800	x19894
1841B	Keep it Beautiful implementation	1000	x21649
1841A	Game with Board constructive algorithms, games	800	x24795
1840C	Ski Resort combinatorics, math, two pointers	1000	x28612
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x22618
1840A	Cipher Shifer implementation, strings, two pointers	800	x34389
1839B	Lamps greedy, sortings	1100	x15247
1839A	The Good Array greedy, implementation, math	800	x17546
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x16533
1838A	Blackboard List constructive algorithms, math	800	x21626
1837C	Best Binary String constructive algorithms, greedy	1000	x22229
1837B	Comparison String greedy	900	x30687
1837A	Grasshopper on a Line constructive algorithms, math	800	x33481
1836B	Astrophysicists greedy, math	1100	x12714
1836A	Destroyer implementation, sortings	800	x20423
1834C	Game with Reversing games, greedy, math, strings	1200	x13457
1834B	Maximum Strength greedy, math	1000	x15391
1834A	Unit Array greedy, math	800	x25323
1833C	Vlad Building Beautiful Array greedy, math	800	x26249
1833B	Restore the Weather greedy, sortings	900	x26833
1833A	Musical Puzzle implementation, strings	800	x32838
1832C	Contrast Value greedy, implementation	1200	x21403
1832B	Maximum Sum brute force, sortings, two pointers	1100	x22646
1832A	New Palindrome strings	800	x25929
1831B	Array merging constructive algorithms, greedy	1000	x21459
1831A	Twin Permutations constructive algorithms	800	x27726
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x20391
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x26936
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x28918
1829B	Blank Space implementation	800	x47613
1829A	Love Story implementation, strings	800	x52462
1828B	Permutation Swap math, number theory	900	x23812
1828A	Divisible Array constructive algorithms, math	800	x23802
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x19431
1826B	Lunatic Never Content math, number theory	1100	x18143
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x15401
1825B	LuoTianyi and the Table greedy, math	1000	x14791
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x19740