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
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5326
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x4366
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5054
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7188
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7004
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3639
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5760
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x6954
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x5352
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x1963
1910D	Remove and Add *special problem, greedy	1800	x296
1907F	Shift and Reverse greedy, sortings	1800	x4315
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x3742
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5740
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6365
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5293
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x5603
1861D	Sorting By Multiplication dp, greedy	1800	x6199
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6495
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x4862
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4119
1852A	Ntarsis' Set binary search, math, number theory	1800	x7515
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5260
1848C	Vika and Price Tags math, number theory	1800	x5915
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2855
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6549
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7273
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x4953
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7256
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4893
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4302
1809D	Binary String Sorting constructive algorithms, greedy	1800	x5855
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x6006
1801B	Buying gifts data structures, greedy, sortings	1800	x5770
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x5730
1781D	Many Perfect Squares brute force, math, number theory	1800	x5214
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4628
1775D	Friendly Spiders dfs and similar, graphs, math, number theory, shortest paths	1800	x5733
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x367
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x6665
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3673
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x6836
1750D	Count GCD combinatorics, math, number theory	1800	x5524
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4092
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x5997
1732C1	Sheikh (Easy version) binary search, bitmasks, greedy, two pointers	1800	x5546
1729E	Guess the Cycle Size interactive, probabilities	1800	x6706
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x6818
1725M	Moving Both Hands dp, graphs, shortest paths	1800	x2835
1725H	Hot Black Hot White constructive algorithms, math	1800	x2493
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x6268
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x5703
1718A1	Burenka and Traditions (easy version) dp, greedy	1800	x5461
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5424
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8468
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6082
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5450
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6378
1675F	Vlad and Unfinished Business dfs and similar, dp, greedy, trees	1800	x4988
1674F	Desktop Rearrangement data structures, greedy, implementation	1800	x4851
1666L	Labyrinth dfs and similar, graphs	1800	x2973
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3073
1648B	Integral Array brute force, constructive algorithms, data structures, math	1800	x6167
1637D	Yet Another Minimization Problem dp, greedy, math	1800	x7346
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x5984
1630B	Range and Partition binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5488
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6336
1619D	New Year's Problem binary search, greedy, sortings	1800	x7222
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4516
1611F	ATM and Students binary search, data structures, two pointers	1800	x6158
1583D	Omkar and the Meaning of Life constructive algorithms, greedy, interactive	1800	x5223
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5237
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2393
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8505
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x317
1571C	Rhyme *special problem, implementation	1800	x357
1560E	Polycarp and String Transformation binary search, implementation, sortings, strings	1800	x7637
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6455
1556C	Compressed Bracket Sequence brute force, implementation	1800	x5640
1554D	Diane constructive algorithms, greedy, strings	1800	x9049
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x8494
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6673
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5764
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x9246
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x7462
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x5750
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x9345
1517D	Explorer Space dp, graphs, shortest paths	1800	x7297
1509C	The Sports Festival dp, greedy	1800	x11742
1508B	Almost Sorted binary search, combinatorics, constructive algorithms, implementation	1800	x3823
1505E	Cakewalk *special problem, greedy, implementation, shortest paths	1800	x1719
1505D	Xenolith? Hippodrome? *special problem, number theory	1800	x739
1500A	Going Home brute force, hashing, implementation, math	1800	x8526
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x6865
1488B	RBS Deletion *special problem, greedy	1800	x524
1477A	Nezzar and Board constructive algorithms, math, number theory	1800	x5653
1475D	Cleaning the Phone binary search, dp, sortings, two pointers	1800	x9691
1468J	Road Reform dsu, graphs, greedy	1800	x3877
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x6930
1463C	Busy Robot implementation	1800	x5475

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