Problemset - Codeforces

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Codeforces Round (Div. 2)
8 days

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Problems

#	Name
2228C2	Cirno and Number (Hard Version) binary search, dfs and similar, dp, greedy, implementation	1600	x4937
2223B	Zhily and Barknights binary search, data structures, dp, math, sortings, two pointers	1600	x2916
2207C	Where's My Water? data structures, divide and conquer, dp, math	1600	x5906
2207B	One Night At Freddy's games, greedy, sortings	1600	x6158
2199C	Minesweeper *special problem, constructive algorithms, greedy	1600	x457
2196B	Another Problem about Beautiful Pairs brute force, math, two pointers	1600	x8880
2194D	Table Cut constructive algorithms, greedy, implementation	1600	x8157
2193F	Pizza Delivery dp, greedy	1600	x8719
2184D	Unfair Game combinatorics, dp, math	1600	x9698
2182D	Christmas Tree Decoration combinatorics, dp, greedy, math	1600	x9111
2181F	Fragmented Nim games	1600	x3675
2172F	Cluster Computing System graphs, greedy, math	1600	x4010
2171F	Rae Taylor and Trees (hard version) binary search, constructive algorithms, data structures, dp, dsu, greedy, implementation, trees	1600	x7282
2167G	Mukhammadali and the Smooth Array data structures, dp	1600	x11175
2167F	Tree, TREE!!! dfs and similar, dp, math, trees	1600	x7249
2167E	khba Loves to Sleep! binary search, data structures, geometry, greedy, implementation	1600	x9211
2162E	Beautiful Palindromes constructive algorithms, greedy, schedules	1600	x9476
2157D	Billion Players Game binary search, greedy, math, sortings, ternary search, two pointers	1600	x6361
2132D	From 1 to Infinity binary search, dp, implementation, math	1600	x8936
2129B	Stay or Mirror brute force, data structures, dp, greedy, sortings	1600	x13688
2128D	Sum of LDS brute force, combinatorics, dp, greedy, math	1600	x12499
2125D	Segments Covering dp, math, probabilities	1600	x9379
2117E	Lost Soul brute force, greedy	1600	x11987
2103C	Median Splits binary search, greedy, implementation, sortings	1600	x10666
2094F	Trulimero Trulicina constructive algorithms	1600	x11528
2085C	Serval and The Formula bitmasks, constructive algorithms, dp, greedy	1600	x13724
2084D	Arcology On Permafrost binary search, brute force, constructive algorithms, greedy, math	1600	x8928
2082B	Floor or Ceil brute force, greedy	1600	x8344
2074E	Empty Triangle geometry, interactive, probabilities	1600	x6716
2070D	Tree Jumps dfs and similar, dp, trees	1600	x11227
2065E	Skibidus and Rizz constructive algorithms, greedy, strings	1600	x12078
2063C	Remove Exactly Two brute force, data structures, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x14784
2061D	Kevin and Numbers bitmasks, data structures	1600	x10863
2061C	Kevin and Puzzle 2-sat, combinatorics, dp	1600	x10036
2059C	Customer Service brute force, constructive algorithms, graph matchings, greedy, math, sortings	1600	x12637
2052A	Adrenaline Rush constructive algorithms	1600	x4284
2051E	Best Price binary search, brute force, data structures, greedy, sortings	1600	x12074
2048D	Kevin and Competition Memories binary search, brute force, data structures, greedy, sortings, two pointers	1600	x8361
2046B	Move Back at a Cost binary search, data structures, greedy, sortings	1600	x10979
2043C	Sums on Segments binary search, brute force, data structures, dp, greedy, math	1600	x11298
2040C	Ordered Permutations bitmasks, combinatorics, constructive algorithms, greedy, math, two pointers	1600	x10855
2037E	Kachina's Favorite Binary String dp, greedy, interactive, two pointers	1600	x7438
2036E	Reverse the Rivers binary search, constructive algorithms, data structures, greedy	1600	x9635
2034D	Darius' Wisdom constructive algorithms, greedy, implementation, sortings	1600	x6657
2028C	Alice's Adventures in Cutting Cake binary search, dp, greedy, two pointers	1600	x10054
2018A	Cards Partition 2-sat, brute force, greedy, implementation, math	1600	x12691
2004D	Colored Portals binary search, brute force, data structures, graphs, greedy, implementation, shortest paths	1600	x13329
1996E	Decode combinatorics, data structures, implementation, math	1600	x12622
1994C	Hungry Games binary search, dp, two pointers	1600	x13732
1985G	D-Function combinatorics, math, number theory	1600	x12298
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x13085
1978D	Elections data structures, greedy, implementation, math	1600	x13710
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x12487
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x12561
1968E	Cells Arrangement constructive algorithms	1600	x12718
1958D	Staircase *special problem	1600	x717
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x12004
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x15218
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x13815
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x12015
1938H	Pho Restaurant	1600	x2683
1932E	Final Countdown implementation, math, number theory	1600	x10271
1928C	Physical Education Lesson brute force, math, number theory	1600	x10408
1921E	Eat the Chip brute force, games, greedy, math	1600	x11473
1920C	Partitioning the Array brute force, math, number theory	1600	x20220
1917C	Watering an Array brute force, greedy, implementation, math	1600	x12446
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x737
1910B	Security Guard *special problem, greedy	1600	x805
1907E	Good Triples brute force, combinatorics, number theory	1600	x16040
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x8681
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x9568
1886C	Decreasing String implementation, strings	1600	x16820
1878D	Reverse Madness data structures, greedy	1600	x10156
1875D	Jellyfish and Mex dp	1600	x11489
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x12847
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x12357
1857F	Sum and Product binary search, data structures, math	1600	x14406
1856C	To Become Max binary search, brute force, data structures, dp	1600	x18605
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x12577
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x18066
1840E	Character Blocking data structures, hashing, implementation	1600	x9342
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x18744
1829G	Hits Different data structures, dp, implementation, math	1600	x15357
1822E	Making Anti-Palindromes greedy, math, strings	1600	x12426
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x8677
1806C	Sequence Master brute force, constructive algorithms, math	1600	x8681
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x9796
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x14289
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x8964
1796C	Maximum Set binary search, math	1600	x12225
1795D	Triangle Coloring combinatorics, math	1600	x13261
1787C	Remove the Bracket dp, greedy, math	1600	x8328
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x10620
1779C	Least Prefix Sum data structures, greedy	1600	x14480
1778C	Flexible String bitmasks, brute force, strings	1600	x11276
1775C	Interesting Sequence bitmasks, math	1600	x14389
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x9284
1771C	Hossam and Trainees greedy, math, number theory	1600	x11789
1766D	Lucky Chains math, number theory	1600	x10777
1753B	Factorial Divisibility math, number theory	1600	x15073

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