Problemset - Codeforces

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Educational Codeforces Round 195 (Rated for Div. 2)
15:25:35
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Problems

#	Name
2268B	What a SauSaGe! It's All Meat bitmasks, brute force, data structures, math	1500	x6307
2268A	K Is Important constructive algorithms, greedy	1200	x11394
2267D	Backrooms Hill constructive algorithms, dp, greedy, sortings, two pointers	1400	x7701
2267C	GCD Treasury greedy, math, number theory	1200	x10634
2266E	Prime Destruction brute force, dp, math, number theory	1400	x7159
2266D	Falling Concrete constructive algorithms, data structures, math, sortings	1400	x8925
2264C	Madamant's Skating Dynasty combinatorics, math, sortings	1400	x7294
2262A1	Floor of MEX (Easy Version) constructive algorithms, greedy	1200	x9985
2260C	Maximize XOR, Minimize Operations bitmasks, greedy	1300	x10663
2259E	Treasure Map Destruction (Constructive Version) 2-sat, constructive algorithms, constructive algorithms, greedy, greedy	1500	x6636
2259D	MEX Multiset constructive algorithms, greedy	1200	x13796
2257C	Spying on the Beaver constructive algorithms, dfs and similar, dsu, graphs, trees	1200	x12413
2255A	Hot Potatoes at the Fairy Warehouse games, greedy, implementation	1200	x14271
2254E	Chronostasis binary search, data structures, greedy	1500	x8511
2254D	Silhouette constructive algorithms, math, sortings	1300	x11320
2254C2	Marenol (hard version) greedy, sortings	1200	x14779
2253C	Sum of Distinct Values in a Matrix greedy, sortings, two pointers	1500	x8363
2253B	Hypercarp and the Control Panel brute force, data structures, two pointers	1100	x12834
2252C	Risky Tower binary search, brute force, data structures, greedy, sortings	1400	x10491
2252B	Always Changing dp, greedy, math, strings	1100	x13323
2249A	Rank Subsequence brute force, greedy, implementation	1300	x10783
2248D	Good Pair Queries constructive algorithms, greedy, math	1400	x7782
2248C	Maximize the Score dp, greedy	1300	x10631
2247D1	XOR Sorting (Easy Version) bitmasks, greedy	1500	x7100
2247C	Inversion of a Subsequence greedy, math	1100	x13708
2246C	0mar and Alternating Sums combinatorics, dp, math	1400	x9572
2245C	MEXOR bitmasks, constructive algorithms, math	1400	x7427
2245B	Delete and Concatenate greedy	1100	x11347
2244E	Masha and the Garland data structures, dp, greedy, implementation, math, number theory, strings	1400	x9485
2244D	Yaroslav and Productivity constructive algorithms, dp, greedy, math, number theory	1200	x14126
2244C	Stepan and Permutation constructive algorithms, dfs and similar, dsu, greedy, math, number theory, sortings, sortings, sortings	1100	x18325
2242C	Unstable Elements brute force, brute force, data structures, implementation, sortings, two pointers, two pointers	1300	x12059
2241D	An Alternative Way dp, greedy, math	1100	x17232
2241B	Good times Good times constructive algorithms, dfs and similar, math	1100	x21951
2240B	AI Finds Nothing Here combinatorics, math	1100	x11463
2239A	Nim Game Is XOR Game constructive algorithms, games, greedy, math	1300	x9759
2238D	Storming Arasaka greedy, math, number theory	1500	x8242
2238C	Village Guilds dfs and similar, dp, trees	1400	x9843
2236D	Brand New Tatar TV Show binary search, constructive algorithms, dp, games, games, math	1300	x13515
2234D	XOR, Expression and Two Binary Numbers bitmasks, divide and conquer, dp, math, number theory	1500	x9211
2234C	Vessels, Heights and Two Versions (Easy Version) dfs and similar, dsu, greedy, implementation, two pointers	1200	x12738
2233C	Cost of a Bracket Sequence brute force, dp, greedy	1400	x10030
2232C1	Seating Arrangement (Easy Version) binary search, binary search, dp, greedy, greedy, two pointers, two pointers	1300	x12671
2231C	Chipmunk Theo and Equality implementation, sortings	1400	x12570
2231B	Another Sorting Problem constructive algorithms	1100	x18839
2230C	Arrange the Numbers in a Circle constructive algorithms, implementation, math	1300	x12188
2229C2	We Be Flipping (Hard Version) constructive algorithms, dp, greedy	1400	x9131
2228C1	Cirno and Number (Easy Version) binary search, brute force, dp, greedy, implementation	1500	x8488
2228B	Remilia Plays Soku games, implementation	1100	x17783
2227E	It All Went Sideways binary search, data structures, dp, greedy	1400	x10503
2227D	Palindromex binary search, brute force, constructive algorithms, data structures, greedy, implementation, two pointers	1200	x15114
2226C	Mental Monumental (Easy Version) binary search, data structures, greedy, math, two pointers	1500	x8630
2225D	Exceptional Segments bitmasks, brute force, math	1500	x8803
2225C	Red-Black Pairs dp, greedy	1100	x14782
2224B	Zhily and Mex and Max constructive algorithms, greedy, math, sortings	1200	x9880
2223A	Zhily and Bracket Swapping constructive algorithms, greedy	1300	x8547
2222C	Median Partition dp, math	1500	x6608
2222B	Artistic Balance Tree greedy, sortings	1100	x9435
2220B	OIE Excursion greedy	1200	x15449
2219A	Grid L brute force, constructive algorithms, math, number theory	1400	x11373
2218F	The 67th Tree Problem constructive algorithms, implementation, trees	1500	x9685
2218E	The 67th XOR Problem binary search, bitmasks, brute force	1200	x18391
2218D	The 67th OEIS Problem constructive algorithms, greedy, greedy, greedy, math, math, number theory	1100	x22869
2217C	Grid Covering chinese remainder theorem, math, number theory	1300	x12400
2216B	THU Packing Puzzle greedy	1300	x5750
2211C1	Equal Multisets (Easy Version) binary search, brute force, greedy, two pointers	1300	x10927
2211B	Mickey Mouse Constructive constructive algorithms, dp, greedy, math	1100	x13407
2210C1	A Simple GCD Problem (Easy Version) greedy, number theory	1200	x15175
2209C	Find the Zero constructive algorithms, interactive	1400	x12286
2208C	Stamina and Tasks dp, greedy, math	1300	x13200
2208B	Cyclists brute force, games, greedy, implementation, math, sortings	1100	x15568
2206K	Time Display Stickers binary search	1300	x2433
2205C	Simons and Posting Blogs greedy, greedy, greedy, sortings	1500	x9048
2204D	Alternating Path constructive algorithms, dfs and similar, graph matchings, graphs, graphs, graphs, graphs	1400	x10482
2203C	Test Generator binary search, bitmasks, greedy, math	1500	x8333
2202B	ABAB Construction dp, greedy, greedy, greedy, implementation	1200	x13146
2201A1	Lost Civilization (Easy Version) data structures, data structures	1300	x12758
2200E	Divisive Battle games, greedy, math, number theory	1500	x9799
2200D	Portal greedy, sortings	1300	x14228
2199B	Two Towers *special problem, greedy, math	1400	x1292
2197B	Array and Permutation implementation, schedules, sortings, two pointers	1100	x17425
2196A	Game with a Fraction games, math	1200	x18103
2195E	Idiot First Search dfs and similar, dp, trees	1500	x9940
2195D	Absolute Cinema math	1300	x15456
2195C	Dice Roll Sequence dp, greedy	1100	x22903
2194C	Secret message bitmasks, brute force, dp, math, number theory	1300	x12023
2193E	Product Queries dp, math, number theory, shortest paths	1300	x16744
2193D	Monster Game binary search, sortings, two pointers	1100	x23524
2192C	All-in-one Gun binary search, greedy, math	1300	x12685
2190B1	Sub-RBS (Easy Version) combinatorics, constructive algorithms, dp, greedy, strings, two pointers	1400	x11877
2190A	Sorting Game constructive algorithms, games, greedy	1200	x18825
2189C1	XOR Convenience (Easy Version) bitmasks, constructive algorithms, math	1300	x15113
2189B	The Curse of the Frog constructive algorithms, greedy, math	1200	x16667
2187A	Restricted Sorting greedy, sortings	1300	x17176
2185E	The Robotic Rush binary search, greedy, implementation, two pointers	1500	x11471
2185D	OutOfMemoryError data structures, implementation, math, two pointers	1100	x22625
2184C	Huge Pile binary search, dfs and similar, dp, graphs, math	1100	x23772
2184B	Hourglass math	1100	x25998
2183D1	Tree Coloring (Easy Version) constructive algorithms, dfs and similar, greedy, trees	1500	x9617
2183C	War Strategy binary search, greedy, math, two pointers	1500	x11512

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