Problemset - Codeforces

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Problems

#	Name
1866B	Battling with Numbers combinatorics, math, number theory	1400	x7843
1864D	Matrix Cascade brute force, constructive algorithms, data structures, dp, greedy, math	1700	x6849
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13648
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x9597
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x6372
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x10890
1862D	Ice Cream Balls binary search, combinatorics, constructive algorithms, math	1300	x17425
1861D	Sorting By Multiplication dp, greedy	1800	x6889
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x10281
1860C	Game on Permutation data structures, dp, games, greedy	1400	x13499
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x7089
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x11437
1857F	Sum and Product binary search, data structures, math	1600	x11798
1857E	Power of Points math, sortings	1500	x12644
1857D	Strong Vertices math, sortings, trees	1300	x19976
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x5415
1856C	To Become Max binary search, brute force, data structures, dp	1600	x12641
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x7076
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x14283
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4547
1852A	Ntarsis' Set binary search, math, number theory	1800	x8160
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5957
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x10523
1851D	Prefix Permutation Sums implementation, math	1300	x15402
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8361
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x12679
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x19611
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8684
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x10704
1848C	Vika and Price Tags math, number theory	1800	x6372
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3832
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x13012
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4476
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3163
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	x17252
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7929
1845C	Strong Password binary search, dp, greedy, strings	1400	x14458
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12408
1844C	Particles dp, greedy, implementation, math	1300	x15830
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5392
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x12627
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4130
1842C	Tenzing and Balls dp	1500	x13060
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7924
1840E	Character Blocking data structures, hashing, implementation	1600	x8150
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x13921
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x12099
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x14709
1837D	Bracket Coloring constructive algorithms, greedy	1400	x15139
1835A	k-th equality brute force, implementation, math	1700	x7909
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	x7526
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x12100
1833D	Flipper brute force, constructive algorithms, greedy	1400	x13464
1830A	Copil Copac Draws Trees dfs and similar, dp, graphs, trees	1400	x13849
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7904
1829G	Hits Different data structures, dp, implementation, math	1600	x10667
1829F	Forever Winter dfs and similar, graphs, math	1300	x17962
1826D	Running Miles brute force, dp, greedy	1700	x10152
1826C	Dreaming of Freedom greedy, math, number theory	1300	x13753
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4693
1824A	LuoTianyi and the Show greedy, implementation	1400	x11403
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x3878
1823C	Strongly Composite greedy, math, number theory	1300	x12426
1822G1	Magic Triples (Easy Version) brute force, data structures, math, number theory	1700	x7163
1822F	Gardening Friends brute force, dfs and similar, dp, graphs, trees	1700	x6277
1822E	Making Anti-Palindromes greedy, math, strings	1600	x10608
1821D	Black Cells binary search, brute force, greedy, math	1900	x5031
1821C	Tear It Apart brute force, implementation, math, strings	1300	x14470
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3638
1819A	Constructive Problem brute force, greedy	1300	x12879
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x4190
1817A	Almost Increasing Subsequence binary search, data structures, greedy	1500	x11170
1815A	Ian and Array Sorting greedy, math	1300	x14288
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10972
1814B	Long Legs brute force, math	1700	x10154
1811E	Living Sequence binary search, dp, math, number theory	1500	x12519
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7605
1810D	Climbing the Tree binary search, math	1700	x7513
1810C	Make It Permutation brute force, greedy, sortings	1300	x14700
1809D	Binary String Sorting constructive algorithms, greedy	1800	x6398
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x12972
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3862
1807F	Bouncy Ball brute force, dfs and similar, implementation	1700	x6385
1807E	Interview binary search, implementation, interactive	1300	x13250
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7701
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x6753
1805C	Place for a Selfie binary search, data structures, geometry, math	1400	x12694
1804C	Pull Your Luck brute force, greedy, math, number theory	1500	x12280
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3511
1801B	Buying gifts data structures, greedy, sortings	1800	x6384
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8673
1800F	Dasha and Nightmares bitmasks, hashing, meet-in-the-middle, strings	1900	x3966
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x13021
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x13003
1799D1	Hot Start Up (easy version) dp	1900	x4602
1799C	Double Lexicographically Minimum greedy, strings	1700	x5932
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x10193