Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
13:50:17
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Problems

#	Name
1900F	Local Deletions binary search, data structures, implementation	2800	x285
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x2049
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x27123
1899E	Queue Sort greedy, implementation, sortings	1300	x15312
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x20399
1898A	Milica and String brute force, implementation, strings	800	x15932
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x343
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x711
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x11007
1894A	Secret Sport implementation, strings	800	x18862
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2626
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x12226
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x814
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x17450
1889D	Game of Stacks brute force, dfs and similar, graphs, implementation, trees	3000	x577
1889A	Qingshan Loves Strings 2 constructive algorithms, greedy, implementation	1300	x13022
1886C	Decreasing String implementation, strings	1600	x11364
1884E	Hard Design greedy, implementation, math	2800	x313
1881C	Perfect Square brute force, implementation	1200	x16970
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1250
1878G	wxhtzdy ORO Tree binary search, bitmasks, brute force, data structures, dfs and similar, implementation, trees	2300	x1174
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x16919
1873D	1D Eraser greedy, implementation, two pointers	800	x34814
1873C	Target Practice implementation, math	800	x40055
1873A	Short Sort brute force, implementation	800	x53399
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x6275
1872B	The Corridor or There and Back Again greedy, implementation	900	x27774
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6917
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x11407
1868F	LIS? data structures, greedy, implementation	3500	x76
1868D	Flower-like Pseudotree constructive algorithms, graphs, greedy, implementation, trees	3000	x285
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1135
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2381
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6915
1868A	Fill in the Matrix constructive algorithms, implementation	1300	x11928
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5728
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x442
1864G	Magic Square combinatorics, constructive algorithms, implementation	3100	x263
1864F	Exotic Queries data structures, implementation, sortings	2300	x1428
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20239
1863C	MEX Repetition implementation, math	1100	x13955
1863A	Channel greedy, implementation	800	x17892
1862C	Flower City Fence binary search, data structures, implementation, sortings	1100	x20707
1862A	Gift Carpet dp, greedy, implementation, strings	800	x32332
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1705
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x10045
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x274
1857B	Maximum Rounding greedy, implementation, math	1100	x22931
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1372
1856B	Good Arrays implementation, math	900	x24184
1856A	Tales of a Sort implementation	800	x26429
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3199
1851D	Prefix Permutation Sums implementation, math	1300	x15126
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8132
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x12303
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x18940
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x22972
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x36420
1850C	Word on the Paper implementation, strings	800	x43850
1850B	Ten Words of Wisdom implementation, sortings	800	x42609
1850A	To My Critics implementation, sortings	800	x55472
1849A	Morning Sandwich implementation, math	800	x27833
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x782
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x14803
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x328
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3741
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3081
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6989
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x16760
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26814
1846A	Rudolph and Cut the Rope implementation, math	800	x32410
1845E	Boxes and Balls dp, implementation, math	2500	x1315
1845B	Come Together geometry, implementation, math	900	x21543
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x27115
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x716
1844C	Particles dp, greedy, implementation, math	1300	x15549
1841B	Keep it Beautiful implementation	1000	x21413
1840E	Character Blocking data structures, hashing, implementation	1600	x7993
1840A	Cipher Shifer implementation, strings, two pointers	800	x33878
1839A	The Good Array greedy, implementation, math	800	x17405
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2190
1836A	Destroyer implementation, sortings	800	x20254
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x164
1835A	k-th equality brute force, implementation, math	1700	x7775
1834E	MEX of LCM binary search, data structures, implementation, math, number theory	2300	x2221
1834D	Survey in Class brute force, data structures, greedy, implementation, sortings	1900	x4626
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5322
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x7298
1833A	Musical Puzzle implementation, strings	800	x32525
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1885
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2912
1832C	Contrast Value greedy, implementation	1200	x20535
1829G	Hits Different data structures, dp, implementation, math	1600	x10339
1829E	The Lakes dfs and similar, dsu, graphs, implementation	1100	x19866
1829D	Gold Rush brute force, dfs and similar, dp, implementation	1000	x26149
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x28414
1829B	Blank Space implementation	800	x45338
1829A	Love Story implementation, strings	800	x50223
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1591
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x15111