Problemset - Codeforces

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Codeforces Round 876 (Div. 2)
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Problems

#	Name
1837F	Editorial for Two binary search, data structures, greedy, implementation		x1278
1837D	Bracket Coloring constructive algorithms, greedy		x8877
1837C	Best Binary String constructive algorithms, greedy		x15608
1837B	Comparison String greedy		x17866
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x2831
1833D	Flipper brute force, constructive algorithms, greedy	1400	x9082
1833C	Vlad Building Beautiful Array greedy, math	800	x20124
1833B	Restore the Weather greedy, sortings	900	x18870
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1321
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2152
1832C	Contrast Value greedy, implementation	1200	x12050
1831B	Array merging constructive algorithms, greedy		x12571
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings		x886
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x19634
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x58
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x169
1827D	Two Centroids data structures, dfs and similar, greedy, trees	2800	x390
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1144
1827B1	Range Sorting (Easy Version) binary search, dp, dsu, greedy, trees, two pointers	2000	x2600
1826D	Running Miles brute force, dp, greedy	1700	x4915
1826C	Dreaming of Freedom greedy, math, number theory	1300	x8747
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x10389
1825B	LuoTianyi and the Table greedy, math	1000	x11266
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x15509
1824C	LuoTianyi and XOR-Tree data structures, dfs and similar, dp, dsu, greedy, trees	2500	x811
1824A	LuoTianyi and the Show greedy, implementation	1400	x8091
1823C	Strongly Composite greedy, math, number theory	1300	x8645
1822E	Making Anti-Palindromes greedy, math, strings	1600	x6491
1822B	Karina and Array greedy, math, sortings	800	x19163
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x1579
1821D	Black Cells binary search, brute force, greedy, math	1900	x3569
1821B	Sort the Subarray brute force, greedy	1100	x12919
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x2591
1819A	Constructive Problem brute force, greedy	1300	x9136
1818A	Politics greedy, implementation	800	x10597
1817E	Half-sum brute force, divide and conquer, greedy	3400	x155
1817A	Almost Increasing Subsequence binary search, data structures, greedy	1500	x7355
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x12319
1815C	Between constructive algorithms, dfs and similar, graphs, greedy	2200	x1396
1815A	Ian and Array Sorting greedy, math	1300	x10589
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x7694
1811C	Restore the Array constructive algorithms, greedy	1100	x15356
1811A	Insert Digit greedy, math, strings	800	x24454
1810E	Monsters brute force, data structures, dfs and similar, dsu, graphs, greedy	2100	x2245
1810C	Make It Permutation brute force, greedy, sortings	1300	x10934
1810A	Beautiful Sequence brute force, greedy	800	x18000
1809F	Traveling in Berland binary search, data structures, graphs, greedy, implementation	2500	x549
1809D	Binary String Sorting constructive algorithms, greedy	1800	x4509
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x9166
1809B	Points on Plane binary search, greedy, math	1000	x16063
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x2740
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x13941
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x14443
1807C	Find and Replace greedy, implementation, strings	800	x24005
1807B	Grab the Candies greedy	800	x31316
1806F2	GCD Master (hard version) greedy, math, sortings	2900	x178
1806F1	GCD Master (easy version) greedy, math, number theory, sortings	2900	x220
1806B	Mex Master constructive algorithms, greedy	900	x14468
1806A	Walking Master geometry, greedy, math	800	x18468
1805F2	Survival of the Weakest (hard version) greedy, math, sortings, two pointers	3100	x218
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x4415
1805B	The String Has a Target greedy, strings	800	x16073
1804D	Accommodation brute force, dp, greedy, implementation	2000	x3705
1804C	Pull Your Luck brute force, greedy, math, number theory	1500	x9338
1804B	Vaccination greedy, implementation	1000	x11880
1804A	Lame King greedy, math	800	x16229
1802B	Settlement of Guinea Pigs greedy, implementation, math	1000	x10927
1802A	Likes greedy, implementation	800	x13834
1801D	The way home binary search, data structures, dp, graphs, greedy, shortest paths, sortings	2100	x1404
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x2330
1801B	Buying gifts data structures, greedy, sortings	1800	x4438
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x9077
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x9312
1800D	Remove Two Letters data structures, greedy, hashing, strings	1200	x15952
1800C2	Powering the Hero (hard version) data structures, greedy	1100	x16941
1800C1	Powering the Hero (easy version) data structures, greedy	1000	x17948
1800B	Count the Number of Pairs greedy, strings	1000	x19474
1799F	Halve or Subtract binary search, brute force, dp, greedy, sortings	2700	x589
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x944
1799C	Double Lexicographically Minimum greedy, strings	1700	x4304
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x8702
1799A	Recent Actions data structures, greedy, implementation, math	800	x10297
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x6879
1798C	Candy Store greedy, math, number theory	1700	x6390
1798B	Three Sevens brute force, data structures, greedy, implementation	1000	x13428
1798A	Showstopper greedy, implementation, sortings	800	x17405
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x5645
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x11697
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x14478
1796E	Colored Subgraphs dfs and similar, dp, games, greedy, trees	2500	x505
1796D	Maximum Subarray data structures, dp, greedy, two pointers	2000	x2858
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x848
1795E	Explosions? binary search, data structures, dp, greedy, math	2200	x1580
1795B	Ideal Point brute force, geometry, greedy	900	x18319
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x751
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x9652
1794B	Not Dividing constructive algorithms, greedy, math	900	x14962
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x719
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x4642
1793A	Yet Another Promotion greedy, math	800	x16203

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