Problemset - Codeforces

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Pinely Round 4 (Div. 1 + Div. 2)
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Problems

#	Name
1748D	ConstructOR bitmasks, chinese remainder theorem, combinatorics, constructive algorithms, math, number theory	2100	x2740
1747E	List Generation combinatorics, dp, math	2900	x491
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x92
1746F	Kazaee data structures, hashing, probabilities	2800	x1631
1746E2	Joking (Hard Version) dp, interactive	3200	x384
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1407
1744F	MEX vs MED math, two pointers	2000	x2998
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x250
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1457
1743E	FTL binary search, dp	2400	x1518
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1460
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x2313
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x111
1740H	MEX Tree Manipulation data structures, trees	3300	x209
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x184
1740F	Conditional Mix combinatorics, dp, math	2600	x781
1739F	Keyboard Design bitmasks, data structures, dp, string suffix structures, strings	2600	x520
1739E	Cleaning Robot bitmasks, dp	2400	x1202
1738H	Palindrome Addicts data structures, strings	3300	x232
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x418
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1202
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1498
1737G	Ela Takes Dancing Class binary search, data structures	3500	x113
1737F	Ela and Prime GCD constructive algorithms, math, number theory	3300	x123
1737E	Ela Goes Hiking combinatorics, dp, math, probabilities	2500	x910
1737D	Ela and the Wiring Wizard brute force, dp, graphs, greedy, implementation, shortest paths	2200	x1826
1736E	Swap and Take dp, greedy	2600	x676
1736D	Equal Binary Subsequences constructive algorithms, geometry, greedy, implementation, strings	2200	x2445
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1264
1735F	Pebbles and Beads data structures, geometry	2900	x219
1735E	House Planning constructive algorithms, data structures, graph matchings, greedy	2400	x1035
1734F	Zeros and Ones bitmasks, divide and conquer, dp, math	2500	x782
1734E	Rectangular Congruence constructive algorithms, number theory	2100	x2840
1733E	Conveyor constructive algorithms, dp, math	2700	x1123
1733D2	Zero-One (Hard Version) dp, greedy	2000	x4100
1732E	Location data structures, dp, math, number theory	2800	x422
1732D2	Balance (Hard version) brute force, data structures, number theory	2400	x1382
1732C2	Sheikh (Hard Version) binary search, bitmasks, brute force, greedy, implementation, two pointers	2100	x2510
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x677
1731E	Graph Cost dp, greedy, math, number theory	2000	x2741
1730F	Almost Sorted bitmasks, data structures, dp	2700	x515
1730E	Maximums and Minimums combinatorics, data structures, divide and conquer, number theory	2700	x630
1730D	Prefixes and Suffixes constructive algorithms, strings, two pointers	2200	x2628
1729G	Cut Substrings combinatorics, dp, hashing, strings, two pointers	2100	x2120
1728G	Illumination binary search, bitmasks, brute force, combinatorics, dp, math, two pointers	2700	x440
1728F	Fishermen flows, graph matchings, greedy	3100	x419
1728E	Red-Black Pepper brute force, data structures, greedy, math, number theory	2300	x1691
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x83
1726G	A Certain Magical Party combinatorics, data structures, greedy, sortings	3300	x288
1726F	Late For Work (submissions are not allowed) data structures, greedy, schedules, shortest paths	2900	x131
1726E	Almost Perfect combinatorics, fft, math	2400	x1382
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x3625
1725L	Lemper Cooking Competition data structures	2400	x893
1725K	Kingdom of Criticism data structures, dsu	2500	x650
1725J	Journey dp, trees	2500	x370
1725I	Imitating the Key Tree combinatorics, dsu, trees	2800	x193
1725F	Field Photography bitmasks, data structures, sortings	2100	x966
1725E	Electrical Efficiency combinatorics, data structures, dp, math, number theory, trees	2500	x453
1725D	Deducing Sortability binary search, bitmasks, math	2900	x119
1725C	Circular Mirror binary search, combinatorics, geometry, math, two pointers	2000	x1594
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x385
1721E	Prefix Function Queries dfs and similar, dp, hashing, string suffix structures, strings, trees	2200	x1919
1720E	Misha and Paintings constructive algorithms, data structures, greedy, implementation, math	2700	x753
1720D2	Xor-Subsequence (hard version) bitmasks, data structures, dp, strings, trees	2400	x1785
1718F	Burenka, an Array and Queries data structures, math, number theory	3300	x152
1718E	Impressionism constructive algorithms, graphs, implementation, math	3500	x106
1718D	Permutation for Burenka data structures, graph matchings, greedy, math, trees	3300	x298
1718C	Tonya and Burenka-179 data structures, greedy, math, number theory	2400	x1554
1718B	Fibonacci Strings greedy, implementation, math, number theory	2000	x2939
1717F	Madoka and The First Session constructive algorithms, flows, graph matchings, graphs, implementation	2500	x525
1717E	Madoka and The Best University math, number theory	2200	x2616
1716F	Bags with Balls combinatorics, dp, math, number theory	2500	x1018
1716E	Swap and Maximum Block bitmasks, data structures, dfs and similar, divide and conquer, dp	2500	x1046
1716D	Chip Move brute force, dp, math	2000	x5111
1716C	Robot in a Hallway data structures, dp, greedy, implementation, ternary search	2000	x4103
1715F	Crop Squares constructive algorithms, geometry, interactive, math	2700	x511
1715E	Long Way Home data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths	2400	x1668
1713F	Lost Array bitmasks, combinatorics, constructive algorithms, dp, math	2900	x524
1713E	Cross Swapping 2-sat, data structures, dsu, greedy, matrices	2400	x1550
1712F	Triameter binary search, data structures, dfs and similar, trees	3200	x309
1712E2	LCM Sum (hard version) brute force, data structures, math, number theory, two pointers	2500	x1238
1712E1	LCM Sum (easy version) binary search, brute force, combinatorics, math, number theory, two pointers	2300	x2103
1712D	Empty Graph binary search, constructive algorithms, data structures, greedy, shortest paths	2000	x4390
1710E	Two Arrays binary search, games, graph matchings	2400	x489
1710D	Recover the Tree constructive algorithms, trees	3400	x415
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1324
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2411
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x539
1709E	XOR Tree bitmasks, data structures, dfs and similar, dsu, greedy, trees	2400	x2571
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x148
1707E	Replace binary search, data structures	3500	x578
1707D	Partial Virtual Trees combinatorics, dfs and similar, dp, math, trees	3000	x598
1707C	DFS Trees dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1461
1706E	Qpwoeirut and Vertices binary search, data structures, dfs and similar, divide and conquer, dsu, greedy, trees	2300	x2528
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1678
1705F	Mark and the Online Exam bitmasks, constructive algorithms, interactive, probabilities	2900	x589
1705E	Mark and Professor Koro binary search, bitmasks, brute force, combinatorics, data structures, greedy	2300	x2035
1704H2	Game of AI (hard version) combinatorics, fft, math	3500	x80
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x177
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x103