Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
2208C	Stamina and Tasks dp, greedy, math	1300	x13237
2207F	Hanabi binary search, data structures, dp, dsu, flows, graph matchings, graphs, greedy	3000	x343
2207D	Boxed Like a Fish dfs and similar, dp, games, shortest paths, trees	2200	x2407
2207C	Where's My Water? data structures, divide and conquer, dp, math	1600	x6734
2206I	Growth Factor combinatorics, dp, math, number theory	2900	x247
2206D	Christmas Tree Un-decoration data structures, dp, trees	2600	x367
2205E	Simons and Dividing the Rhythm combinatorics, data structures, dp, dsu, math, string suffix structures, strings, strings, strings	2100	x1967
2205D	Simons and Beating Peaks data structures, data structures, divide and conquer, dp, dp, greedy, implementation, trees	1700	x5928
2204G	Grid Path dp, dp, graphs, matrices	2700	x630
2203F	Binary Search with One Swap binary search, divide and conquer, dp, hashing, math, two pointers	2600	x491
2203B	Beautiful Numbers bitmasks, dp, fft, greedy, math	1000	x17135
2202B	ABAB Construction dp, greedy, greedy, greedy, implementation	1200	x13182
2201C	Rigged Bracket Sequence combinatorics, dp, greedy	2000	x2326
2201A2	Lost Civilization (Hard Version) data structures, dp	1700	x5762
2200G	Operation Permutation combinatorics, dp, math, probabilities	2200	x1359
2199H	Sum of MEX *special problem, combinatorics, data structures, dp, math	2300	x121
2196E2	Fuzzy Concatenation (Hard version) binary search, bitmasks, data structures, dp, greedy, string suffix structures	3000	x259
2196D	Double Bracket Sequence data structures, dp, expression parsing, flows, greedy, strings	2500	x1117
2196C2	Interactive Graph (Hard Version) combinatorics, dfs and similar, dp, graphs, interactive	2000	x2871
2196C1	Interactive Graph (Simple Version) binary search, combinatorics, dfs and similar, dp, graphs, interactive	1800	x4052
2195G	Idiot First Search and Queries binary search, data structures, dp, graphs, trees	2300	x1250
2195F	Parabola Independence dp, graphs, greedy, math, sortings	2000	x3085
2195E	Idiot First Search dfs and similar, dp, trees	1500	x9964
2195C	Dice Roll Sequence dp, greedy	1100	x22946
2194F2	Again Trees... (hard version) bitmasks, data structures, dfs and similar, dp, fft, trees	3000	x250
2194F1	Again Trees... (Easy Version) bitmasks, dfs and similar, dp, trees	2300	x1046
2194E	The Turtle Strikes Back dp, graphs, greedy, implementation	2000	x2999
2194C	Secret message bitmasks, brute force, dp, math, number theory	1300	x12049
2193H	Remove the Grail Tree dfs and similar, dp, graphs, greedy, implementation, trees	2400	x1194
2193F	Pizza Delivery dp, greedy	1600	x9875
2193E	Product Queries dp, math, number theory, shortest paths	1300	x16774
2192F	Fish Fight dp, dp, math, probabilities, probabilities	2900	x210
2192D	Cost of Tree dp, greedy, trees, trees	1800	x4166
2190F	Xor Product bitmasks, dp	3300	x112
2190B2	Sub-RBS (Hard Version) dp, games, implementation, strings	1900	x3500
2190B1	Sub-RBS (Easy Version) combinatorics, constructive algorithms, dp, greedy, strings, two pointers	1400	x11898
2189F	Zhora the Vacuum Cleaner data structures, dfs and similar, dp, greedy, implementation, sortings, trees	2800	x268
2189D2	Little String (Hard Version) combinatorics, dp, greedy, math, number theory	2200	x2137
2189D1	Little String (Easy Version) combinatorics, dp, greedy, math, number theory	1900	x4376
2187F2	Al Fine (Counting Version) dp, trees	3500	x111
2187E	Doors and Keys brute force, data structures, dp	3500	x412
2187D	Cool Problem bitmasks, dp, math	2600	x740
2187B	Shortest Statement Ever bitmasks, constructive algorithms, dp, greedy	1800	x5842
2185H	BattleCows 2 binary search, brute force, data structures, dp, greedy	2500	x807
2184F	Cherry Tree dfs and similar, dp, graphs, trees	1900	x4503
2184D	Unfair Game combinatorics, dp, math	1600	x10689
2184C	Huge Pile binary search, dfs and similar, dp, graphs, math	1100	x23809
2183H	Minimise Cost binary search, dp, greedy, sortings	3500	x181
2183F	Jumping Man brute force, combinatorics, dfs and similar, dp, trees	2500	x1324
2183E	LCM is Legendary Counting Master dp, math, number theory	2100	x3101
2182G	Short Garland combinatorics, data structures, dfs and similar, dp, trees	2800	x411
2182F1	Christmas Reindeer (easy version) bitmasks, brute force, combinatorics, dp, math	2300	x1383
2182D	Christmas Tree Decoration combinatorics, dp, greedy, math	1600	x9780
2182C	Production of Snowmen brute force, combinatorics, dp	1200	x16819
2181M	Medical Parity dp, strings	1700	x3913
2181J	Jinx or Jackpot brute force, dp, math, probabilities	2300	x853
2181G	Greta's Game binary search, dp, graphs, greedy, math	2400	x726
2180F2	Control Car (Hard Version) combinatorics, dp, matrices, probabilities	3200	x256
2180F1	Control Car (Easy Version) combinatorics, dp, probabilities	2800	x446
2180E	No Effect XOR bitmasks, divide and conquer, dp, greedy, math	2300	x1846
2180D	Insolvable Disks data structures, dp, greedy, math	2000	x4483
2180C	XOR-factorization bitmasks, constructive algorithms, dp, greedy, number theory	1900	x6909
2179H	Blackslex and Plants bitmasks, data structures, dp, implementation, math	2200	x1410
2179B	Blackslex and Showering dp, greedy, implementation	800	x29642
2178I	Numbers or Fireworks bitmasks, combinatorics, dp, graphs	3300	x276
2178G	deCH OR Dations bitmasks, data structures, dp, hashing, probabilities	2800	x658
2178C	First or Second dp, greedy, implementation	1200	x17217
2178B	Impost or Sus dp, greedy, implementation, strings	900	x22884
2176F	Omega Numbers bitmasks, combinatorics, dp, math, number theory	2400	x1622
2176E	Remove at the lowest cost data structures, dfs and similar, dp, dsu, greedy, implementation, trees	2400	x1408
2176D	Fibonacci Paths data structures, dp, graphs, sortings	1800	x6334
2174F	Mosaic Tree combinatorics, dp, fft, math, trees	2800	x525
2174D	Secret Message data structures, dp, greedy, trees	3400	x339
2174B	Wishing Cards dp	1900	x4398
2173D	Taiga's Carry Chains bitmasks, brute force, dp, greedy, math	1900	x3983
2173B	Niko's Tactical Cards dp, greedy, math	1100	x19259
2172L	Maximum Color Segment dp, implementation	2300	x948
2172D	Divisor Card Game combinatorics, dp	3100	x143
2171H	Shiori Miyagi and Maximum Array Score binary search, data structures, dp, sortings	2400	x1113
2171F	Rae Taylor and Trees (hard version) binary search, constructive algorithms, data structures, dp, dsu, greedy, implementation, trees	1600	x7939
2171D	Rae Taylor and Trees (easy version) binary search, data structures, dp, dsu, greedy, implementation, trees	1400	x12790
2170F	Build XOR on a Segment bitmasks, dp	2600	x901
2170E	Binary Strings and Blocks combinatorics, data structures, dp	2100	x2536
2169F	Subsequence Problem combinatorics, dp, fft, math	2800	x366
2169E	Points Selection dp, greedy	2400	x1194
2169C	Range Operation dp, greedy, math, two pointers	1300	x13817
2167G	Mukhammadali and the Smooth Array data structures, dp	1600	x11856
2167F	Tree, TREE!!! dfs and similar, dp, math, trees	1600	x7969
2165E	Rainbow Branch constructive algorithms, dp, greedy, trees	3200	x628
2165B	Marble Council dp, math, sortings	1900	x6876
2164F2	Chain Prefix Rank (Hard Version) binary search, combinatorics, data structures, dfs and similar, dp, graphs, math, trees	2900	x944
2164F1	Chain Prefix Rank (Easy Version) combinatorics, dfs and similar, dp, math, trees	2600	x1954
2163C	Monopati brute force, combinatorics, dp, math, two pointers	1500	x9891
2162H	Beautiful Problem dp	2900	x391
2161D	Locked Out binary search, data structures, dp, greedy	2100	x2982
2159D2	Inverse Minimum Partition (Hard Version) dp, greedy, math	3200	x542
2159D1	Inverse Minimum Partition (Easy Version) binary search, brute force, dp, geometry, greedy, math, two pointers	2500	x2433
2159B	Rectangles brute force, data structures, dp, dsu, greedy, implementation, two pointers	2100	x4315
2158C	Annoying Game dp, games, greedy	1400	x12237
2157I	Hyper Smawk Bros dp, dp, games	3500	x226

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