Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
2014E	Rendez-vous de Marian et Robin dfs and similar, graphs, shortest paths	1800	x4437
2008G	Sakurako's Task binary search, greedy, math, number theory	1800	x4619
2006B	Iris and the Tree brute force, data structures, dfs and similar, dsu, math, trees	1800	x2943
2005C	Lazy Narek dp, implementation, strings	1800	x6328
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory	1800	x8230
1990D	Grid Puzzle bitmasks, brute force, dp, greedy, implementation	1800	x6027
1987D	World is Mine dp, games	1800	x6911
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x5164
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x6424
1974E	Money Buys Happiness dp	1800	x7754
1970E1	Trails (Easy) dp	1800	x2050
1968F	Equal XOR Segments binary search, data structures	1800	x5341
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6558
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6951
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5977
1949I	Disks dfs and similar, geometry, graph matchings, graphs	1800	x1760
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5910
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x8133
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x8082
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x4076
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6693
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7641
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x6263
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2425
1910D	Remove and Add *special problem, greedy	1800	x349
1907F	Shift and Reverse greedy, sortings	1800	x4851
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4391
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x6315
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6962
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5760
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x6239
1861D	Sorting By Multiplication dp, greedy	1800	x6753
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6983
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x5288
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4461
1852A	Ntarsis' Set binary search, math, number theory	1800	x8037
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5826
1848C	Vika and Price Tags math, number theory	1800	x6291
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3107
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x7023
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7814
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5304
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7817
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5368
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4578
1809D	Binary String Sorting constructive algorithms, greedy	1800	x6285
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x6551
1801B	Buying gifts data structures, greedy, sortings	1800	x6227
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6130
1781D	Many Perfect Squares brute force, math, number theory	1800	x5493
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4931
1775D	Friendly Spiders dfs and similar, graphs, math, number theory, shortest paths	1800	x6259
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x383
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x7149
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3911
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x7296
1750D	Count GCD combinatorics, math, number theory	1800	x5866
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4330
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6291
1732C1	Sheikh (Easy version) binary search, bitmasks, greedy, two pointers	1800	x5894
1729E	Guess the Cycle Size interactive, probabilities	1800	x6999
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x7231
1725M	Moving Both Hands dp, graphs, shortest paths	1800	x3123
1725H	Hot Black Hot White constructive algorithms, math	1800	x2608
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x6619
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x5980
1718A1	Burenka and Traditions (easy version) dp, greedy	1800	x5756
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5678
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8858
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6338
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5789
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6606
1675F	Vlad and Unfinished Business dfs and similar, dp, greedy, trees	1800	x5319
1674F	Desktop Rearrangement data structures, greedy, implementation	1800	x5047
1666L	Labyrinth dfs and similar, graphs	1800	x3108
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3175
1648B	Integral Array brute force, constructive algorithms, data structures, math	1800	x6437
1637D	Yet Another Minimization Problem dp, greedy, math	1800	x7706
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x6252
1630B	Range and Partition binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5741
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6565
1619D	New Year's Problem binary search, greedy, sortings	1800	x7537
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4678
1611F	ATM and Students binary search, data structures, two pointers	1800	x6444
1583D	Omkar and the Meaning of Life constructive algorithms, greedy, interactive	1800	x5382
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5576
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2526
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8991
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x332
1571C	Rhyme *special problem, implementation	1800	x376
1560E	Polycarp and String Transformation binary search, implementation, sortings, strings	1800	x7963
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6917
1556C	Compressed Bracket Sequence brute force, implementation	1800	x5788
1554D	Diane constructive algorithms, greedy, strings	1800	x9454
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x8869
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x7009
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5908
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x9817
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x7727
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x6028

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