Problemset - Codeforces

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Codeforces Round #849 (Div. 4)
44:18:43
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Problems

#	Name
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings		x3344
1792A	GamingForces greedy, sortings		x18455
1790D	Matryoshkas data structures, greedy, sortings		x10193
1783C	Yet Another Tournament binary search, greedy, sortings	1700	x6454
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x21158
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x4857
1781B	Going to the Cinema brute force, greedy, sortings	1000	x10429
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings		x759
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1332
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x5418
1777C	Quiz Master binary search, math, number theory, sortings, two pointers		x4805
1773E	Easy Assembly greedy, sortings	1400	x2517
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x882
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x1442
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x17157
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x10151
1767B	Block Towers data structures, greedy, sortings	800	x16641
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x689
1764E	Doremy's Number Line dp, greedy, sortings	2400	x952
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x9967
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x49
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x12814
1760F	Quests binary search, greedy, sortings	1500	x7408
1760C	Advantage data structures, implementation, sortings	800	x25484
1760A	Medium Number implementation, sortings	800	x33216
1759E	The Humanoid brute force, dp, sortings	1500	x6738
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x66
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x3671
1744D	Divisibility by 2^n greedy, math, sortings	1200	x14425
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x6687
1742B	Increasing greedy, implementation, sortings	800	x31731
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x1676
1741D	Masha and a Beautiful Tree dfs and similar, divide and conquer, graphs, sortings, trees	1300	x10770
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x132
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x8338
1740B	Jumbo Extra Cheese 2 geometry, greedy, sortings	800	x12398
1738B	Prefix Sum Addicts constructive algorithms, greedy, math, sortings	1200	x11156
1738A	Glory Addicts greedy, implementation, sortings	800	x12530
1736A	Make A Equal to B brute force, greedy, sortings	800	x19855
1734A	Select Three Sticks brute force, greedy, sortings	800	x18635
1733C	Parity Shuffle Sorting constructive algorithms, sortings	1300	x11933
1733A	Consecutive Sum greedy, sortings	800	x18879
1730C	Minimum Notation data structures, greedy, math, sortings	1200	x12921
1730A	Planets data structures, greedy, sortings	800	x19965
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x14463
1728C	Digital Logarithm data structures, greedy, sortings	1400	x11993
1728A	Colored Balls: Revisited brute force, greedy, implementation, sortings	800	x22452
1726G	A Certain Magical Party combinatorics, data structures, greedy, sortings	3300	x163
1725F	Field Photography bitmasks, data structures, sortings	2100	x741
1725B	Basketball Together binary search, greedy, sortings	1000	x7751
1722D	Line greedy, sortings	1100	x17741
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x4938
1720B	Interesting Sum brute force, data structures, greedy, math, sortings	800	x18714
1713B	Optimal Reduction constructive algorithms, sortings	1000	x18154
1712C	Sort Zero greedy, sortings	1100	x16678
1707C	DFS Trees dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1104
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x4688
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x5186
1705A	Mark the Photographer greedy, sortings	800	x22568
1704C	Virus greedy, implementation, sortings	1200	x11456
1703F	Yet Another Problem About Pairs Satisfying an Inequality binary search, data structures, dp, greedy, sortings	1300	x13563
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x4699
1698E	PermutationForces II brute force, combinatorics, greedy, sortings, trees, two pointers	2300	x1396
1697B	Promo greedy, sortings	900	x21045
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x11770
1692B	All Distinct greedy, sortings	800	x26819
1691E	Number of Groups data structures, dfs and similar, dsu, graphs, greedy, sortings	2300	x1462
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x2582
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x14972
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x16529
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1110
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x2905
1685B	Linguistics greedy, implementation, sortings, strings	2000	x2696
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x14796
1684D	Traps constructive algorithms, greedy, sortings	1700	x7875
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x10518
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x223
1682E	Unordered Swaps constructive algorithms, dfs and similar, graphs, greedy, math, sortings, trees	2700	x437
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x14639
1681C	Double Sort implementation, sortings	1200	x14573
1676H2	Maximum Crossings (Hard Version) data structures, divide and conquer, sortings	1500	x7638
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x12458
1676E	Eating Queries binary search, greedy, sortings	1100	x18675
1676B	Equal Candies greedy, math, sortings	800	x33877
1674D	A-B-C Sort constructive algorithms, implementation, sortings	1200	x13251
1671E	Preorder combinatorics, divide and conquer, dp, dsu, hashing, sortings, trees	2100	x2264
1671B	Consecutive Points Segment brute force, math, sortings	1000	x16210
1670A	Prof. Slim greedy, implementation, sortings	800	x14360
1669B	Triple implementation, sortings	800	x29385
1668B	Social Distance greedy, math, sortings	900	x14672
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x6804
1665B	Array Cloning Technique constructive algorithms, greedy, sortings	900	x16383
1662N	Drone Photo combinatorics, math, sortings		x431
1662I	Ice Cream Shop brute force, implementation, sortings		x1421
1658E	Gojou and Matrix Game data structures, dp, games, hashing, implementation, math, number theory, sortings	2500	x817
1657D	For Gamers. By Gamers. binary search, brute force, greedy, math, sortings	2000	x4195
1656F	Parametric MST binary search, constructive algorithms, graphs, greedy, math, sortings	2600	x798
1656C	Make Equal With Mod constructive algorithms, math, number theory, sortings	1200	x15562
1656A	Good Pairs math, sortings	800	x17997
1654F	Minimal String Xoration bitmasks, data structures, divide and conquer, greedy, hashing, sortings, strings	2800	x786

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