Problemset - Codeforces

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Problems

#	Name
1841E	Fill the Matrix data structures, greedy, math	2200	x1877
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4125
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7291
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x12812
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1155
1839B	Lamps greedy, sortings	1100	x14462
1839A	The Good Array greedy, implementation, math	800	x17080
1838D	Bracket Walk data structures, greedy, strings	2100	x3076
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2066
1837D	Bracket Coloring constructive algorithms, greedy	1400	x13289
1837C	Best Binary String constructive algorithms, greedy	1000	x21080
1837B	Comparison String greedy	900	x26475
1836B	Astrophysicists greedy, math	1100	x12266
1835B	Lottery binary search, brute force, greedy, math, two pointers	2500	x901
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4344
1834C	Game with Reversing games, greedy, math, strings	1200	x12612
1834B	Maximum Strength greedy, math	1000	x14506
1834A	Unit Array greedy, math	800	x21107
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4925
1833D	Flipper brute force, constructive algorithms, greedy	1400	x12659
1833C	Vlad Building Beautiful Array greedy, math	800	x25486
1833B	Restore the Weather greedy, sortings	900	x25355
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1788
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2788
1832C	Contrast Value greedy, implementation	1200	x18193
1831B	Array merging constructive algorithms, greedy	1000	x18422
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1524
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x27059
1827F	Copium Permutation constructive algorithms, data structures, greedy	3500	x107
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x359
1827D	Two Centroids data structures, dfs and similar, greedy, trees	2800	x700
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1763
1827B1	Range Sorting (Easy Version) binary search, dp, dsu, greedy, trees, two pointers	2000	x3656
1826D	Running Miles brute force, dp, greedy	1700	x8523
1826C	Dreaming of Freedom greedy, math, number theory	1300	x12763
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x14487
1825B	LuoTianyi and the Table greedy, math	1000	x14150
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x19256
1824C	LuoTianyi and XOR-Tree data structures, dfs and similar, dp, dsu, greedy, trees	2500	x1250
1824A	LuoTianyi and the Show greedy, implementation	1400	x10778
1823C	Strongly Composite greedy, math, number theory	1300	x11645
1822E	Making Anti-Palindromes greedy, math, strings	1600	x9671
1822B	Karina and Array greedy, math, sortings	800	x24049
1821E	Rearrange Brackets brute force, dp, greedy, sortings, strings	2100	x2240
1821D	Black Cells binary search, brute force, greedy, math	1900	x4746
1821B	Sort the Subarray brute force, greedy	1100	x16884
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3423
1819A	Constructive Problem brute force, greedy	1300	x12055
1818A	Politics greedy, implementation	800	x12698
1817E	Half-sum brute force, divide and conquer, greedy	3400	x250
1817A	Almost Increasing Subsequence binary search, data structures, greedy	1500	x10298
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x14689
1815C	Between constructive algorithms, dfs and similar, graphs, greedy	2200	x1849
1815A	Ian and Array Sorting greedy, math	1300	x13425
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10159
1811C	Restore the Array constructive algorithms, greedy	1100	x18860
1811A	Insert Digit greedy, math, strings	800	x29980
1810E	Monsters brute force, data structures, dfs and similar, dsu, graphs, greedy	2100	x2962
1810C	Make It Permutation brute force, greedy, sortings	1300	x13768
1810A	Beautiful Sequence brute force, greedy	800	x20331
1809F	Traveling in Berland binary search, data structures, graphs, greedy, implementation	2500	x704
1809D	Binary String Sorting constructive algorithms, greedy	1800	x5875
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x11896
1809B	Points on Plane binary search, greedy, math	1000	x19020
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3577
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x17640
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x17804
1807C	Find and Replace greedy, implementation, strings	800	x29123
1807B	Grab the Candies greedy	800	x39693
1806F2	GCD Master (hard version) greedy, math, sortings	2900	x267
1806F1	GCD Master (easy version) greedy, math, number theory, sortings	2900	x328
1806B	Mex Master constructive algorithms, greedy	900	x17018
1806A	Walking Master geometry, greedy, math	800	x22227
1805F2	Survival of the Weakest (hard version) greedy, math, sortings, two pointers	3100	x321
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x6032
1805B	The String Has a Target greedy, strings	800	x18164
1804D	Accommodation brute force, dp, greedy, implementation	2000	x4414
1804C	Pull Your Luck brute force, greedy, math, number theory	1500	x11498
1804B	Vaccination greedy, implementation	1000	x13771
1804A	Lame King greedy, math	800	x17665
1802B	Settlement of Guinea Pigs greedy, implementation, math	1000	x12896
1802A	Likes greedy, implementation	800	x15506
1801D	The way home binary search, data structures, dp, graphs, greedy, shortest paths, sortings	2100	x2037
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3219
1801B	Buying gifts data structures, greedy, sortings	1800	x5784
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12018
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12128
1800D	Remove Two Letters data structures, greedy, hashing, strings	1200	x21655
1800C2	Powering the Hero (hard version) data structures, greedy	1100	x21302
1800C1	Powering the Hero (easy version) data structures, greedy	1000	x22332
1800B	Count the Number of Pairs greedy, strings	1000	x23919
1799F	Halve or Subtract binary search, brute force, dp, greedy, sortings	2700	x766
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1153
1799C	Double Lexicographically Minimum greedy, strings	1700	x5445
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x10801
1799A	Recent Actions data structures, greedy, implementation, math	800	x11349
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x9015
1798C	Candy Store greedy, math, number theory	1700	x7764
1798B	Three Sevens brute force, data structures, greedy, implementation	1000	x15867
1798A	Showstopper greedy, implementation, sortings	800	x19322