Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
07:05:34
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Problems

#	Name
2008G	Sakurako's Task binary search, greedy, math, number theory	1800	x4249
2006B	Iris and the Tree brute force, data structures, dfs and similar, dsu, math, trees	1800	x2750
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory	1800	x7879
1990D	Grid Puzzle bitmasks, brute force, dp, greedy, implementation	1800	x5917
1987D	World is Mine dp, games	1800	x6806
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x5093
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x6363
1974E	Money Buys Happiness dp	1800	x7649
1970E1	Trails (Easy) dp	1800	x1997
1968F	Equal XOR Segments binary search, data structures	1800	x5281
1965B	Missing Subsequence Sum bitmasks, constructive algorithms, greedy, number theory	1800	x6477
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6891
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5917
1949I	Disks dfs and similar, geometry, graph matchings, graphs	1800	x1723
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5850
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x8082
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x8026
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x4044
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6627
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7587
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x6191
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2383
1910D	Remove and Add *special problem, greedy	1800	x349
1907F	Shift and Reverse greedy, sortings	1800	x4817
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4326
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x6277
1870D	Prefix Purchase greedy, implementation, sortings	1800	x6919
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5728
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x6203
1861D	Sorting By Multiplication dp, greedy	1800	x6713
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6956
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x5256
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4433
1852A	Ntarsis' Set binary search, math, number theory	1800	x7999
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5790
1848C	Vika and Price Tags math, number theory	1800	x6262
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3081
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x6990
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7765
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5279
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7785
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x5323
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4542
1809D	Binary String Sorting constructive algorithms, greedy	1800	x6255
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x6512
1801B	Buying gifts data structures, greedy, sortings	1800	x6195
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6075
1781D	Many Perfect Squares brute force, math, number theory	1800	x5471
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4908
1775D	Friendly Spiders dfs and similar, graphs, math, number theory, shortest paths	1800	x6225
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x376
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x7119
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3900
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x7263
1750D	Count GCD combinatorics, math, number theory	1800	x5838
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4309
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6268
1732C1	Sheikh (Easy version) binary search, bitmasks, greedy, two pointers	1800	x5870
1729E	Guess the Cycle Size interactive, probabilities	1800	x6981
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x7198
1725M	Moving Both Hands dp, graphs, shortest paths	1800	x3098
1725H	Hot Black Hot White constructive algorithms, math	1800	x2590
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x6588
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x5953
1718A1	Burenka and Traditions (easy version) dp, greedy	1800	x5732
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5666
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8827
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6315
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5766
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6586
1675F	Vlad and Unfinished Business dfs and similar, dp, greedy, trees	1800	x5292
1674F	Desktop Rearrangement data structures, greedy, implementation	1800	x5022
1666L	Labyrinth dfs and similar, graphs	1800	x3090
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3161
1648B	Integral Array brute force, constructive algorithms, data structures, math	1800	x6399
1637D	Yet Another Minimization Problem dp, greedy, math	1800	x7685
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x6234
1630B	Range and Partition binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5720
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6548
1619D	New Year's Problem binary search, greedy, sortings	1800	x7524
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4670
1611F	ATM and Students binary search, data structures, two pointers	1800	x6424
1583D	Omkar and the Meaning of Life constructive algorithms, greedy, interactive	1800	x5369
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5552
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2514
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8940
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x329
1571C	Rhyme *special problem, implementation	1800	x373
1560E	Polycarp and String Transformation binary search, implementation, sortings, strings	1800	x7945
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6883
1556C	Compressed Bracket Sequence brute force, implementation	1800	x5778
1554D	Diane constructive algorithms, greedy, strings	1800	x9411
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x8843
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6986
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5898
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x9760
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x7701
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x6012
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x9731
1517D	Explorer Space dp, graphs, shortest paths	1800	x7690

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