Problemset - Codeforces

Problems

#	Name
1856A	Tales of a Sort implementation	800	x26699
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3304
1851D	Prefix Permutation Sums implementation, math	1300	x15403
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8362
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x12684
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x19619
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x23854
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x38100
1850C	Word on the Paper implementation, strings	800	x44992
1850B	Ten Words of Wisdom implementation, sortings	800	x43425
1850A	To My Critics implementation, sortings	800	x57751
1849A	Morning Sandwich implementation, math	800	x29871
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x800
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x15483
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x334
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3832
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3164
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	x17255
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x27016
1846A	Rudolph and Cut the Rope implementation, math	800	x32626
1845E	Boxes and Balls dp, implementation, math	2500	x1354
1845B	Come Together geometry, implementation, math	900	x21762
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28334
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x825
1844C	Particles dp, greedy, implementation, math	1300	x15831
1841B	Keep it Beautiful implementation	1000	x21644
1840E	Character Blocking data structures, hashing, implementation	1600	x8152
1840A	Cipher Shifer implementation, strings, two pointers	800	x34377
1839A	The Good Array greedy, implementation, math	800	x17545
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2236
1836A	Destroyer implementation, sortings	800	x20406
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x167
1835A	k-th equality brute force, implementation, math	1700	x7909
1834E	MEX of LCM binary search, data structures, implementation, math, number theory	2300	x2300
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4750
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5468
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x7527
1833A	Musical Puzzle implementation, strings	800	x32837
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1929
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2974
1832C	Contrast Value greedy, implementation	1200	x21397
1829G	Hits Different data structures, dp, implementation, math	1600	x10679
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x20386
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x26924
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x28909
1829B	Blank Space implementation	800	x47574
1829A	Love Story implementation, strings	800	x52419
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1636
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x15399
1824A	LuoTianyi and the Show greedy, implementation	1400	x11404
1822A	TubeTube Feed brute force, implementation	800	x24438
1821C	Tear It Apart brute force, implementation, math, strings	1300	x14470
1820A	Yura's New Name implementation, strings	800	x16792
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1502
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3639
1818A	Politics greedy, implementation	800	x13035
1817D	Toy Machine constructive algorithms, games, implementation	2700	x791
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x3086
1814A	Coins implementation, math	800	x29880
1812G	Colour Vision *special problem, implementation		x554
1812B	Was it Rated? special problem, special problem, *special problem, brute force, implementation		x5725
1811F	Is It Flower? dfs and similar, graphs, implementation	2100	x1863
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7605
1811B	Conveyor Belts implementation, math	1000	x20530
1809F	Traveling in Berland binary search, data structures, graphs, greedy, implementation	2500	x780
1809E	Two Tanks binary search, dp, implementation, math	2400	x868
1809A	Garland implementation	800	x24054
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3863
1808A	Lucky Numbers brute force, implementation	900	x18445
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x19732
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x19311
1807F	Bouncy Ball brute force, dfs and similar, implementation	1700	x6387
1807E	Interview binary search, implementation, interactive	1300	x13251
1807D	Odd Queries data structures, implementation	900	x34081
1807C	Find and Replace greedy, implementation, strings	800	x30776
1807A	Plus or Minus implementation	800	x63818
1805F1	Survival of the Weakest (easy version) binary search, brute force, implementation, math, sortings	2600	x929
1804G	Flow Control data structures, dsu, implementation	3500	x207
1804D	Accommodation brute force, dp, greedy, implementation	2000	x4696
1804B	Vaccination greedy, implementation	1000	x14333
1802B	Settlement of Guinea Pigs greedy, implementation, math	1000	x13431
1802A	Likes greedy, implementation	800	x15940
1800G	Symmetree dfs and similar, hashing, implementation, trees	2200	x2129
1800A	Is It a Cat? implementation, strings	800	x31840
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1223
1799A	Recent Actions data structures, greedy, implementation, math	800	x11642
1798B	Three Sevens brute force, data structures, greedy, implementation	1000	x16795
1798A	Showstopper greedy, implementation, sortings	800	x19956
1797D	Li Hua and Tree brute force, data structures, dfs and similar, dp, implementation, trees	1900	x4033
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17596
1796B	Asterisk-Minor Template implementation, strings	1000	x16654
1796A	Typical Interview Problem brute force, implementation, strings	800	x18904
1795C	Tea Tasting binary search, data structures, implementation	1500	x12789
1795A	Two Towers brute force, implementation, strings	800	x23704
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x1118
1793F	Rebrending brute force, data structures, divide and conquer, implementation	2600	x1411
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6286
1791C	Prepend and Append implementation, two pointers	800	x46924
1791B	Following Directions geometry, implementation	800	x45069