Problemset - Codeforces

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

#	Name
1794D	Counting Factorizations combinatorics, divide and conquer, dp, math, number theory	1900	x3628
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x1104
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6287
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x399
1792F1	Graph Coloring (easy version) combinatorics, dp, graphs	2700	x743
1792E	Divisors and Table brute force, dfs and similar, dp, number theory	2400	x1401
1791E	Negatives and Positives dp, greedy, sortings	1100	x29166
1789F	Serval and Brain Power bitmasks, brute force, dp, greedy, implementation, strings	2700	x728
1789E	Serval and Music Game brute force, dp, implementation, math, number theory	2500	x825
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x8661
1788E	Sum Over Zero data structures, dfs and similar, dp	2200	x2725
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x237
1787C	Remove the Bracket dp, greedy, math	1600	x7166
1784E	Infinite Game brute force, combinatorics, dp, games, probabilities	3100	x347
1784D	Wooden Spoon combinatorics, dp	2400	x1043
1783D	Different Arrays brute force, dp, implementation	2000	x4508
1781F	Bracket Insertion combinatorics, dp, math, trees	2700	x919
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1517
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1267
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7986
1778F	Maximizing Root dfs and similar, dp, graphs, math, number theory, trees	2600	x675
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x2831
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3557
1776M	Parmigiana With Seafood binary search, dp, greedy, trees	3000	x379
1776K	Uniform Chemistry dp, math	3200	x69
1776E	Crossing the Railways data structures, dp	3500	x73
1776B	Vittorio Plays with LEGO Bricks dp, geometry	2200	x1363
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x769
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x443
1774E	Two Chess Pieces dfs and similar, dp, greedy, trees	1900	x3531
1774C	Ice and Fire constructive algorithms, dp, greedy	1300	x12120
1773L	Lisa's Sequences dp	3500	x45
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x391
1771E	Hossam and a Letter brute force, dp, implementation, two pointers	2500	x711
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2811
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x14720
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x713
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1378
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x384
1769C2	Подкрутка II *special problem, dp	1300	x976
1769C1	Подкрутка I *special problem, brute force, dp, greedy	1200	x976
1768F	Wonderful Jump dp, greedy	2900	x870
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x947
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x10022
1767C	Count Binary Strings data structures, dp	2100	x2682
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1237
1766C	Hamiltonian Wall dp, implementation	1300	x13745
1765F	Chemistry Lab dp, geometry, probabilities	2200	x615
1765C	Card Guessing combinatorics, dp, probabilities	2600	x402
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1254
1764D	Doremy's Pegging Game combinatorics, dp, math	2000	x2798
1763F	Edge Queries data structures, dfs and similar, dp, dsu, graphs, trees	3000	x493
1763E	Node Pairs dp, graphs, math, number theory	2200	x1828
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x2087
1762F	Good Pairs binary search, data structures, dp	2600	x683
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x83
1761F1	Anti-median (Easy Version) dp, math	3100	x210
1759E	The Humanoid brute force, dp, sortings	1500	x10961
1753C	Wish I Knew How to Sort dp, math, probabilities	2000	x4576
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x10481
1753A1	Make Nonzero Sum (easy version) constructive algorithms, dp, greedy	1300	x15112
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x84
1750G	Doping combinatorics, dp, math	3300	x249
1750F	Majority combinatorics, dp, math, strings	2700	x926
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1443
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5624
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x1972
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x11252
1747E	List Generation combinatorics, dp, math	2900	x527
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x97
1746E2	Joking (Hard Version) dp, interactive	3200	x398
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x4656
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x260
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1537
1743E	FTL binary search, dp	2400	x1646
1743D	Problem with Random Tests brute force, dp, greedy, probabilities	1700	x7660
1743C	Save the Magazines constructive algorithms, dp, greedy	1100	x19307
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1526
1741E	Sending a Sequence Over the Network dp	1600	x12593
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x115
1740F	Conditional Mix combinatorics, dp, math	2600	x825
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4393
1739F	Keyboard Design bitmasks, data structures, dp, string suffix structures, strings	2600	x548
1739E	Cleaning Robot bitmasks, dp	2400	x1242
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x9165
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x463
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1569
1738C	Even Number Addicts dp, games, greedy, math	1500	x11302
1737E	Ela Goes Hiking combinatorics, dp, math, probabilities	2500	x947
1737D	Ela and the Wiring Wizard brute force, dp, graphs, greedy, implementation, shortest paths	2200	x1912
1736E	Swap and Take dp, greedy	2600	x743
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1343
1734F	Zeros and Ones bitmasks, divide and conquer, dp, math	2500	x820
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6377
1733E	Conveyor constructive algorithms, dp, math	2700	x1255
1733D2	Zero-One (Hard Version) dp, greedy	2000	x4275
1732E	Location data structures, dp, math, number theory	2800	x463
1732B	Ugu brute force, dp, greedy, implementation	900	x15185
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x706
1731E	Graph Cost dp, greedy, math, number theory	2000	x2878