Problemset - Codeforces

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Problems

#	Name
1856A	Tales of a Sort implementation	800	x26695
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3297
1851D	Prefix Permutation Sums implementation, math	1300	x15398
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8360
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x12677
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x19601
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x23807
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x38047
1850C	Word on the Paper implementation, strings	800	x44948
1850B	Ten Words of Wisdom implementation, sortings	800	x43380
1850A	To My Critics implementation, sortings	800	x57674
1849A	Morning Sandwich implementation, math	800	x29806
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x799
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x15470
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x334
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3830
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3162
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x7120
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x17246
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x27008
1846A	Rudolph and Cut the Rope implementation, math	800	x32621
1845E	Boxes and Balls dp, implementation, math	2500	x1353
1845B	Come Together geometry, implementation, math	900	x21758
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28306
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x741
1844C	Particles dp, greedy, implementation, math	1300	x15826
1841B	Keep it Beautiful implementation	1000	x21635
1840E	Character Blocking data structures, hashing, implementation	1600	x8147
1840A	Cipher Shifer implementation, strings, two pointers	800	x34364
1839A	The Good Array greedy, implementation, math	800	x17544
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2233
1836A	Destroyer implementation, sortings	800	x20403
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x167
1835A	k-th equality brute force, implementation, math	1700	x7908
1834E	MEX of LCM binary search, data structures, implementation, math, number theory	2300	x2299
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4748
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5463
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x7523
1833A	Musical Puzzle implementation, strings	800	x32827
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1923
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2971
1832C	Contrast Value greedy, implementation	1200	x21374
1829G	Hits Different data structures, dp, implementation, math	1600	x10663
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x20375
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x26894
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x28891
1829B	Blank Space implementation	800	x47504
1829A	Love Story implementation, strings	800	x52346
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1634
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x15391
1824A	LuoTianyi and the Show greedy, implementation	1400	x11400
1822A	TubeTube Feed brute force, implementation	800	x24426
1821C	Tear It Apart brute force, implementation, math, strings	1300	x14465
1820A	Yura's New Name implementation, strings	800	x16790
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1499
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3636
1818A	Politics greedy, implementation	800	x13030
1817D	Toy Machine constructive algorithms, games, implementation	2700	x789
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x3085
1814A	Coins implementation, math	800	x29842
1812G	Colour Vision *special problem, implementation		x554
1812B	Was it Rated? special problem, special problem, *special problem, brute force, implementation		x5722
1811F	Is It Flower? dfs and similar, graphs, implementation	2100	x1863
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7601
1811B	Conveyor Belts implementation, math	1000	x20519
1809F	Traveling in Berland binary search, data structures, graphs, greedy, implementation	2500	x779
1809E	Two Tanks binary search, dp, implementation, math	2400	x866
1809A	Garland implementation	800	x24047
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3859
1808A	Lucky Numbers brute force, implementation	900	x18436
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x19716
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x19299
1807F	Bouncy Ball brute force, dfs and similar, implementation	1700	x6384
1807E	Interview binary search, implementation, interactive	1300	x13245
1807D	Odd Queries data structures, implementation	900	x34034
1807C	Find and Replace greedy, implementation, strings	800	x30752
1807A	Plus or Minus implementation	800	x63734
1805F1	Survival of the Weakest (easy version) binary search, brute force, implementation, math, sortings	2600	x928
1804G	Flow Control data structures, dsu, implementation	3500	x207
1804D	Accommodation brute force, dp, greedy, implementation	2000	x4695
1804B	Vaccination greedy, implementation	1000	x14333
1802B	Settlement of Guinea Pigs greedy, implementation, math	1000	x13429
1802A	Likes greedy, implementation	800	x15937
1800G	Symmetree dfs and similar, hashing, implementation, trees	2200	x2128
1800A	Is It a Cat? implementation, strings	800	x31819
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1222
1799A	Recent Actions data structures, greedy, implementation, math	800	x11639
1798B	Three Sevens brute force, data structures, greedy, implementation	1000	x16791
1798A	Showstopper greedy, implementation, sortings	800	x19952
1797D	Li Hua and Tree brute force, data structures, dfs and similar, dp, implementation, trees	1900	x4032
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17593
1796B	Asterisk-Minor Template implementation, strings	1000	x16649
1796A	Typical Interview Problem brute force, implementation, strings	800	x18902
1795C	Tea Tasting binary search, data structures, implementation	1500	x12785
1795A	Two Towers brute force, implementation, strings	800	x23703
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x1117
1793F	Rebrending brute force, data structures, divide and conquer, implementation	2600	x1411
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6284
1791C	Prepend and Append implementation, two pointers	800	x46859
1791B	Following Directions geometry, implementation	800	x45038