Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1847A	The Man who became a God greedy, sortings	800	x21612
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x17854
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x367
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x32821
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1234
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x468
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4110
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x12686
1839D	Ball Sorting data structures, dp, sortings	2100	x2163
1839B	Lamps greedy, sortings	1100	x14438
1836A	Destroyer implementation, sortings	800	x19736
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4323
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6608
1833B	Restore the Weather greedy, sortings	900	x25273
1832B	Maximum Sum brute force, sortings, two pointers	1100	x19460
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1502
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x17356
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1492
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x14448
1823B	Sort with Step brute force, math, sortings	900	x15263
1822B	Karina and Array greedy, math, sortings	800	x23993
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x2227
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3410
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10119
1810F	M-tree data structures, math, sortings, trees	2800	x532
1810C	Make It Permutation brute force, greedy, sortings	1300	x13726
1808B	Playing in a Casino math, sortings	1200	x14521
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x17567
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x17758
1806F2	GCD Master (hard version) greedy, math, sortings	2900	x263
1806F1	GCD Master (easy version) greedy, math, number theory, sortings	2900	x326
1805F2	Survival of the Weakest (hard version) greedy, math, sortings, two pointers	3100	x319
1805F1	Survival of the Weakest (easy version) binary search, brute force, implementation, math, sortings	2600	x804
1801D	The way home binary search, data structures, dp, graphs, greedy, shortest paths, sortings	2100	x2028
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3191
1801B	Buying gifts data structures, greedy, sortings	1800	x5768
1799F	Halve or Subtract binary search, brute force, dp, greedy, sortings	2700	x765
1798A	Showstopper greedy, implementation, sortings	800	x19306
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x922
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x5853
1792A	GamingForces greedy, sortings	800	x27082
1791G2	Teleporters (Hard Version) binary search, greedy, sortings	1900	x4442
1791G1	Teleporters (Easy Version) greedy, sortings	1100	x20299
1791E	Negatives and Positives dp, greedy, sortings	1100	x25329
1790D	Matryoshkas data structures, greedy, sortings	1200	x18037
1786B	Cake Assembly Line brute force, sortings	1300	x8581
1783C	Yet Another Tournament binary search, greedy, sortings	1700	x8745
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x27044
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7002
1781B	Going to the Cinema brute force, greedy, sortings	1000	x13185
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1365
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1684
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7448
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x7661
1776C	Library game games, greedy, interactive, sortings	2500	x750
1773E	Easy Assembly greedy, sortings	1400	x4626
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1260
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2216
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x21965
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x13514
1767B	Block Towers data structures, greedy, sortings	800	x19544
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x875
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1173
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x13850
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x97
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x16147
1760F	Quests binary search, greedy, sortings	1500	x11215
1760C	Advantage data structures, implementation, sortings	800	x34779
1760A	Medium Number implementation, sortings	800	x53110
1759E	The Humanoid brute force, dp, sortings	1500	x9865
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x88
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x4410
1744D	Divisibility by 2^n greedy, math, sortings	1200	x20147
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x9728
1742B	Increasing greedy, implementation, sortings	800	x44019
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x2207
1741D	Masha and a Beautiful Tree dfs and similar, divide and conquer, graphs, sortings, trees	1300	x14383
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x177
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x10520
1740B	Jumbo Extra Cheese 2 geometry, greedy, sortings	800	x13520
1738B	Prefix Sum Addicts constructive algorithms, greedy, math, sortings	1200	x14706
1738A	Glory Addicts greedy, implementation, sortings	800	x13318
1736A	Make A Equal to B brute force, greedy, sortings	800	x22388
1734A	Select Three Sticks brute force, greedy, sortings	800	x20685
1733C	Parity Shuffle Sorting constructive algorithms, sortings	1300	x15039
1733A	Consecutive Sum greedy, sortings	800	x20632
1730C	Minimum Notation data structures, greedy, math, sortings	1200	x16005
1730A	Planets data structures, greedy, sortings	800	x22469
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x18705
1728C	Digital Logarithm data structures, greedy, sortings	1400	x15017
1728A	Colored Balls: Revisited brute force, greedy, implementation, sortings	800	x24317
1726G	A Certain Magical Party combinatorics, data structures, greedy, sortings	3300	x279
1725F	Field Photography bitmasks, data structures, sortings	2100	x933
1725B	Basketball Together binary search, greedy, sortings	1000	x11538
1722D	Line greedy, sortings	1100	x22130
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x6262
1720B	Interesting Sum brute force, data structures, greedy, math, sortings	800	x20720
1713B	Optimal Reduction constructive algorithms, sortings	1000	x20700
1712C	Sort Zero greedy, sortings	1100	x19177
1707C	DFS Trees dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1380