Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
2 days
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Problems

#	Name
1851B	Parity Sort greedy, sortings, two pointers	800	x28120
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11257
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x32529
1850B	Ten Words of Wisdom implementation, sortings	800	x40517
1850A	To My Critics implementation, sortings	800	x51301
1849B	Monsters greedy, math, sortings	1000	x22777
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13415
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x854
1847A	The Man who became a God greedy, sortings	800	x21688
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x17973
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x369
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x33020
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1246
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x471
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4140
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x12880
1839D	Ball Sorting data structures, dp, sortings	2100	x2180
1839B	Lamps greedy, sortings	1100	x14495
1836A	Destroyer implementation, sortings	800	x19797
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4358
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6727
1833B	Restore the Weather greedy, sortings	900	x25429
1832B	Maximum Sum brute force, sortings, two pointers	1100	x19703
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1531
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x17520
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1505
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x14520
1823B	Sort with Step brute force, math, sortings	900	x15338
1822B	Karina and Array greedy, math, sortings	800	x24101
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x2248
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3436
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10201
1810F	M-tree data structures, math, sortings, trees	2800	x541
1810C	Make It Permutation brute force, greedy, sortings	1300	x13810
1808B	Playing in a Casino math, sortings	1200	x14709
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x17740
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x17878
1806F2	GCD Master (hard version) greedy, math, sortings	2900	x268
1806F1	GCD Master (easy version) greedy, math, number theory, sortings	2900	x329
1805F2	Survival of the Weakest (hard version) greedy, math, sortings, two pointers	3100	x329
1805F1	Survival of the Weakest (easy version) binary search, brute force, implementation, math, sortings	2600	x822
1801D	The way home binary search, data structures, dp, graphs, greedy, shortest paths, sortings	2100	x2049
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3227
1801B	Buying gifts data structures, greedy, sortings	1800	x5820
1799F	Halve or Subtract binary search, brute force, dp, greedy, sortings	2700	x768
1798A	Showstopper greedy, implementation, sortings	800	x19341
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x932
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x5898
1792A	GamingForces greedy, sortings	800	x27140
1791G2	Teleporters (Hard Version) binary search, greedy, sortings	1900	x4486
1791G1	Teleporters (Easy Version) greedy, sortings	1100	x20576
1791E	Negatives and Positives dp, greedy, sortings	1100	x25698
1790D	Matryoshkas data structures, greedy, sortings	1200	x18222
1786B	Cake Assembly Line brute force, sortings	1300	x8628
1783C	Yet Another Tournament binary search, greedy, sortings	1700	x8832
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x27363
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7067
1781B	Going to the Cinema brute force, greedy, sortings	1000	x13237
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1375
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1690
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7516
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x7844
1776C	Library game games, greedy, interactive, sortings	2500	x759
1773E	Easy Assembly greedy, sortings	1400	x4667
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1273
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2233
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x22069
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x13571
1767B	Block Towers data structures, greedy, sortings	800	x19581
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x920
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1181
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x13928
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x99
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x16202
1760F	Quests binary search, greedy, sortings	1500	x11350
1760C	Advantage data structures, implementation, sortings	800	x35130
1760A	Medium Number implementation, sortings	800	x54025
1759E	The Humanoid brute force, dp, sortings	1500	x9999
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	x4429
1744D	Divisibility by 2^n greedy, math, sortings	1200	x20326
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x9894
1742B	Increasing greedy, implementation, sortings	800	x44609
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x2234
1741D	Masha and a Beautiful Tree dfs and similar, divide and conquer, graphs, sortings, trees	1300	x14503
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x178
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x10588
1740B	Jumbo Extra Cheese 2 geometry, greedy, sortings	800	x13547
1738B	Prefix Sum Addicts constructive algorithms, greedy, math, sortings	1200	x14838
1738A	Glory Addicts greedy, implementation, sortings	800	x13344
1736A	Make A Equal to B brute force, greedy, sortings	800	x22445
1734A	Select Three Sticks brute force, greedy, sortings	800	x20769
1733C	Parity Shuffle Sorting constructive algorithms, sortings	1300	x15118
1733A	Consecutive Sum greedy, sortings	800	x20670
1730C	Minimum Notation data structures, greedy, math, sortings	1200	x16070
1730A	Planets data structures, greedy, sortings	800	x22536
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x18888
1728C	Digital Logarithm data structures, greedy, sortings	1400	x15219
1728A	Colored Balls: Revisited brute force, greedy, implementation, sortings	800	x24370
1726G	A Certain Magical Party combinatorics, data structures, greedy, sortings	3300	x282