Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
2147G	Modular Tetration combinatorics, math, number theory	3100	x1317
2147F	Exchange Queries combinatorics, data structures, greedy	2800	x1751
2147E	Maximum OR Popcount binary search, bitmasks, brute force, data structures, greedy	2300	x2392
2147D	Game on Array games, greedy	1700	x9344
2147C	Rabbits constructive algorithms, dp, greedy, implementation	1500	x12531
2147B	Multiple Construction constructive algorithms	1000	x19990
2147A	Shortest Increasing Path constructive algorithms, greedy	800	x21426
2146F	Bubble Sort brute force, combinatorics, dp	2900	x358
2146E	Yet Another MEX Problem brute force, constructive algorithms, data structures, divide and conquer, greedy, hashing	2300	x2231
2146D2	Max Sum OR (Hard Version) bitmasks, constructive algorithms, divide and conquer, greedy	2000	x4349
2146D1	Max Sum OR (Easy Version) bitmasks, constructive algorithms, divide and conquer, greedy, trees	1500	x11480
2146C	Wrong Binary Search binary search, constructive algorithms	1300	x14273
2146B	Merging the Sets greedy, implementation	1100	x16956
2146A	Equal Occurrences brute force, greedy, implementation	800	x22791
2145G	Cost of Coloring combinatorics, divide and conquer, dp, fft, math	2900	x656
2145F	Long Journey dfs and similar, divide and conquer, dp, graphs, greedy, math, matrices, number theory	2500	x1110
2145E	Predicting Popularity binary search, data structures, greedy, sortings	2100	x3318
2145D	Inversion Value of a Permutation constructive algorithms, dfs and similar, dp	1800	x7198
2145C	Monocarp's String binary search, greedy, strings	1300	x16588
2145B	Deck of Cards greedy, implementation	1000	x22947
2145A	Candies for Nephews math	800	x32734
2144F	Bracket Groups brute force, constructive algorithms, dp, string suffix structures, strings	2700	x1136
2144E2	Looking at Towers (difficult version) combinatorics, data structures, dp	2500	x1634
2144E1	Looking at Towers (easy version) combinatorics, dp	2200	x2894
2144D	Price Tags brute force, dp, math	1800	x7560
2144C	Non-Descending Arrays combinatorics, dp, math	1300	x16118
2144B	Maximum Cost Permutation constructive algorithms, greedy	1000	x19625
2144A	Cut the Array brute force, constructive algorithms, math, number theory	800	x22614
2143F	Increasing Xor bitmasks, data structures, math	2700	x478
2143E	Make Good constructive algorithms, greedy, math, strings	2400	x2145
2143D2	Inversion Graph Coloring (Hard Version) binary search, combinatorics, data structures, dp, two pointers	2200	x3087
2143D1	Inversion Graph Coloring (Easy Version) combinatorics, data structures, dp, greedy, two pointers	1800	x6967
2143C	Max Tree constructive algorithms, dfs and similar, graphs, greedy	1300	x15303
2143B	Discounts greedy, sortings, two pointers	1000	x22749
2143A	All Lengths Subtraction brute force, two pointers	800	x21862
2141I	Color the Tree *special problem	3500	x83
2141H	Merging Vertices in a Graph *special problem, dfs and similar, dsu, graphs	2700	x188
2141G	Good Robot Paths *special problem, data structures, geometry, sortings	2800	x66
2141F	Array Reduction *special problem, greedy	2200	x148
2141E	Perfect Cut *special problem, dp, greedy	2100	x268
2141D	Avoid Minimums *special problem, greedy, math	1800	x496
2141C	Minimum on Subarrays *special problem, brute force	1800	x362
2141B	Games *special problem, greedy	1200	x1608
2141A	Furniture Store *special problem, implementation	800	x1711
2140F	Sum Minimisation number theory	2900	x341
2140E2	Prime Gaming (Hard Version) bitmasks, combinatorics, dp, probabilities	2500	x1318
2140E1	Prime Gaming (Easy Version) bitmasks, combinatorics, dp	2200	x2286
2140D	A Cruel Segment's Thesis data structures, greedy, sortings	2000	x5301
2140C	Ultimate Value data structures, games, greedy	1500	x13433
2140B	Another Divisibility Problem constructive algorithms, math, number theory	900	x23776
2140A	Shift Sort greedy, sortings	800	x23351
2139B	Cake Collection greedy	800	x21694
2139A	Maple and Multiplication greedy, math	800	x27007
2138F	Ode to the Bridge Builder constructive algorithms, geometry	3500	x100
2138E2	Determinant Construction (Hard Version) brute force, constructive algorithms, math, matrices, number theory	3100	x227
2138E1	Determinant Construction (Easy Version) brute force, constructive algorithms, math, matrices, number theory	3100	x282
2138D	Antiamuny and Slider Movement brute force, combinatorics, implementation, math, sortings	2600	x694
2138C2	Maple and Tree Beauty (Hard Version) bitmasks, brute force, dfs and similar, dp, fft, trees	2000	x3666
2138C1	Maple and Tree Beauty (Easy Version) brute force, dfs and similar, dp, graphs, trees	1800	x5825
2138B	Antiamuny Wants to Learn Swap data structures, greedy, two pointers	1900	x5733
2138A	Cake Assignment bitmasks, constructive algorithms, greedy	1100	x18005
2137G	Cry Me a River dfs and similar, dp, games, graphs	2200	x2084
2137F	Prefix Maximum Invariance binary search, combinatorics, data structures, sortings	1900	x4289
2137E	Mexification brute force, implementation, math	1500	x10937
2137D	Replace with Occurrences constructive algorithms	1200	x20859
2137C	Maximum Even Sum brute force, greedy, implementation, math	1100	x24268
2137B	Fun Permutation constructive algorithms, math, number theory	900	x27969
2137A	Collatz Conjecture constructive algorithms, math	800	x36879
2136B	Like the Bitset constructive algorithms, greedy, two pointers	900	x22016
2136A	In the Dream greedy, math	800	x27272
2135F	To the Infinity data structures, hashing, math, trees	3500	x701
2135E2	Beyond the Palindrome (Hard Version) combinatorics, dp, math, number theory	3500	x324
2135E1	Beyond the Palindrome (Easy Version) combinatorics, dp, math	3300	x1403
2135D2	From the Unknown (Hard Version) brute force, constructive algorithms, interactive, math	2500	x1506
2135D1	From the Unknown (Easy Version) constructive algorithms, interactive, math	2100	x4341
2135C	By the Assignment binary search, bitmasks, combinatorics, dfs and similar, dsu, graphs, math	2000	x6596
2135B	For the Champion constructive algorithms, interactive, math	1700	x9496
2135A	Against the Difference data structures, dp	1200	x21622
2134F	Permutation Oddness combinatorics, dp, math	2900	x720
2134E	Power Boxes constructive algorithms, dp, implementation, interactive	2300	x2566
2134D	Sliding Tree constructive algorithms, dfs and similar, greedy, implementation, trees	2300	x3850
2134C	Even Larger brute force, greedy, implementation	1200	x19877
2134B	Add 0 or K constructive algorithms, math, number theory	1200	x22421
2134A	Painting With Two Colors constructive algorithms, implementation, math	800	x27744
2133F	Flint and Steel data structures, dp, graphs	3000	x540
2133E	I Yearned For The Mines constructive algorithms, dfs and similar, dp, greedy, trees	2500	x1824
2133D	Chicken Jockey dp, greedy	1900	x7969
2133C	The Nether graphs, interactive	1400	x13554
2133B	Villagers greedy	800	x26415
2133A	Redstone? brute force, data structures, implementation, math	800	x32201
2132G	Famous Choreographer hashing, implementation, strings	2600	x541
2132F	Rada and the Chamomile Valley dfs and similar, graphs, shortest paths	2100	x3041
2132E	Arithmetics Competition binary search, data structures, greedy, sortings, ternary search	1700	x8712
2132D	From 1 to Infinity binary search, dp, implementation, math	1600	x9373
2132C2	The Cunning Seller (hard version) binary search, greedy, math	1400	x14213
2132C1	The Cunning Seller (easy version) greedy, math	1000	x29037
2132B	The Secret Number math	900	x35074
2132A	Homework brute force, implementation, strings	800	x45977
2131H	Sea, You & copriMe brute force, constructive algorithms, graphs, greedy, math, number theory	2600	x953
2131G	Wafu! bitmasks, brute force, data structures, dfs and similar, dp, math	2000	x3957

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