Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6085
1900F	Local Deletions binary search, data structures, implementation	2800	x254
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x1777
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x21489
1899E	Queue Sort greedy, implementation, sortings	1300	x13765
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x17901
1898A	Milica and String brute force, implementation, strings	800	x14966
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x296
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x639
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x10028
1894A	Secret Sport implementation, strings	800	x17967
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2410
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x11166
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x769
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x16579
1889D	Game of Stacks brute force, dfs and similar, graphs, implementation, trees	3000	x510
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x11915
1886C	Decreasing String implementation, strings	1600	x10116
1884E	Hard Design greedy, implementation, math	2800	x257
1881C	Perfect Square brute force, implementation	1200	x15744
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1178
1878G	wxhtzdy ORO Tree binary search, bitmasks, brute force, data structures, dfs and similar, implementation, trees	2300	x1083
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x15693
1873D	1D Eraser greedy, implementation, two pointers	800	x32354
1873C	Target Practice implementation, math	800	x34799
1873A	Short Sort brute force, implementation	800	x48225
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5748
1872B	The Corridor or There and Back Again greedy, implementation	900	x26469
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6368
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x10674
1868F	LIS? data structures, greedy, implementation	3500	x68
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x244
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1062
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2260
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6400
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11102
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5295
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x403
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x251
1864F	Exotic Queries data structures, implementation, sortings	2300	x1306
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x19724
1863C	MEX Repetition implementation, math	1100	x13308
1863A	Channel greedy, implementation	800	x17398
1862C	Flower City Fence binary search, data structures, implementation, sortings	1100	x19547
1862A	Gift Carpet dp, greedy, implementation, strings	800	x30555
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1599
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9402
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x262
1857B	Maximum Rounding greedy, implementation, math	1100	x21979
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1301
1856B	Good Arrays implementation, math	900	x22992
1856A	Tales of a Sort implementation	800	x25714
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2901
1851D	Prefix Permutation Sums implementation, math	1300	x14285
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x7446
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11128
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x16967
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x20635
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x32004
1850C	Word on the Paper implementation, strings	800	x40668
1850B	Ten Words of Wisdom implementation, sortings	800	x40082
1850A	To My Critics implementation, sortings	800	x50583
1849A	Morning Sandwich implementation, math	800	x26920
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x737
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x13269
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x312
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3587
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2856
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6549
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15256
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x25958
1846A	Rudolph and Cut the Rope implementation, math	800	x31270
1845E	Boxes and Balls dp, implementation, math	2500	x1257
1845B	Come Together geometry, implementation, math	900	x20813
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24388
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x637
1844C	Particles dp, greedy, implementation, math	1300	x14748
1841B	Keep it Beautiful implementation	1000	x20426
1840E	Character Blocking data structures, hashing, implementation	1600	x7476
1840A	Cipher Shifer implementation, strings, two pointers	800	x32409
1839A	The Good Array greedy, implementation, math	800	x17059
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2056
1836A	Destroyer implementation, sortings	800	x19744
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x137
1835A	k-th equality brute force, implementation, math	1700	x7397
1834E	MEX of LCM binary search, data structures, implementation, math, number theory	2300	x2040
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4327
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4901
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x6616
1833A	Musical Puzzle implementation, strings	800	x31460
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1783
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2782
1832C	Contrast Value greedy, implementation	1200	x18098
1829G	Hits Different data structures, dp, implementation, math	1600	x9314
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x18078
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x24038
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x26962
1829B	Blank Space implementation	800	x40370
1829A	Love Story implementation, strings	800	x45413
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1493