Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
37:05:42
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Before contest
Codeforces Round 941 (Div. 2)
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Problems

#	Name
1708A	Difference Operations greedy, math	800	x21460
1707D	Partial Virtual Trees combinatorics, dfs and similar, dp, math, trees	3000	x578
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1649
1706B	Making Towers dp, greedy, math	1100	x16191
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6083
1704H2	Game of AI (hard version) combinatorics, fft, math	3500	x74
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x170
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x96
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2211
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4834
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x9949
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x7904
1701F	Points combinatorics, data structures, implementation, math, matrices	2500	x880
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x5468
1700D	River Locks binary search, dp, greedy, math	1900	x5817
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x18223
1700A	Optimal Path constructive algorithms, greedy, math	800	x22525
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1075
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9372
1699A	The Third Three Number Problem constructive algorithms, math	800	x23611
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x300
1698F	Equal Reversal constructive algorithms, graphs, implementation, math	2800	x554
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1134
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x152
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x265
1696E	Placing Jinas combinatorics, math	2000	x3817
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11292
1692H	Gambling data structures, dp, greedy, math	1700	x7022
1692F	3SUM brute force, math	1300	x21174
1691F	K-Set Tree combinatorics, dfs and similar, dp, math, trees	2500	x904
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15054
1691A	Beat The Odds brute force, greedy, math	800	x29788
1690F	Shifting String graphs, math, number theory, strings	1700	x6768
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x14447
1687F	Koishi's Unconscious Permutation fft, math	3500	x77
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x211
1687D	Cute number binary search, brute force, data structures, dsu, implementation, math	2900	x556
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x235
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x576
1684B	Z mod X = C constructive algorithms, math	800	x20583
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23444
1682E	Unordered Swaps constructive algorithms, dfs and similar, graphs, greedy, math, sortings, trees	2700	x558
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x14086
1681B	Card Trick implementation, math	800	x19802
1680D	Dog Walking brute force, greedy, math	2400	x1110
1680A	Minimums and Maximums brute force, math	800	x20993
1679F	Formalism for Formalism bitmasks, dp, math	2600	x494
1679A	AvtoBus brute force, greedy, math, number theory	900	x21722
1677F	Tokitsukaze and Gems dp, math	3500	x85
1677D	Tokitsukaze and Permutations dp, math	2500	x1189
1677B	Tokitsukaze and Meeting data structures, implementation, math	1700	x4009
1676C	Most Similar Words brute force, greedy, implementation, implementation, math, strings	800	x28674
1676B	Equal Candies greedy, math, sortings	800	x44881
1675A	Food for Animals greedy, math	800	x31400
1674E	Breaking the Wall binary search, brute force, constructive algorithms, greedy, math	2000	x6141
1674B	Dictionary combinatorics, math	800	x25566
1674A	Number Transformation constructive algorithms, math	800	x25618
1673F	Anti-Theft Road Planning bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math	2400	x766
1673E	Power or XOR? bitmasks, combinatorics, math, number theory	2500	x658
1673D	Lost Arithmetic Progression combinatorics, math, number theory	1900	x3184
1673C	Palindrome Basis brute force, dp, math, number theory	1500	x11639
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x313
1672A	Log Chopping games, implementation, math	800	x15828
1671F	Permutation Counting brute force, combinatorics, dp, fft, math	2700	x314
1671C	Dolce Vita binary search, brute force, greedy, math	1200	x15841
1671B	Consecutive Points Segment brute force, math, sortings	1000	x18089
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x4942
1670C	Where is the Pizza? data structures, dfs and similar, dsu, graphs, implementation, math	1400	x9479
1669H	Maximal AND bitmasks, greedy, math	1300	x16048
1669E	2-Letter Strings data structures, math, strings	1200	x16803
1669C	Odd/Even Increments greedy, greedy, implementation, math	800	x32716
1668B	Social Distance greedy, math, sortings	900	x16302
1668A	Direction Change implementation, math	800	x16141
1667E	Centroid Probabilities combinatorics, dp, fft, math	3000	x621
1667C	Half Queen Cover constructive algorithms, math	2400	x1511
1667A	Make it Increasing brute force, greedy, math	1300	x14323
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1381
1666H	Heroes of Might math	3500	x60
1666G	Global Warming geometry, math	3100	x133
1666E	Even Split binary search, constructive algorithms, greedy, math	2500	x675
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x3676
1665A	GCD vs LCM constructive algorithms, math	800	x22901
1663D	Is it rated - 3 *special problem, combinatorics, dp, math		x1380
1663C	Pōja Verdon *special problem, implementation, math		x5609
1663B	Mike's Sequence *special problem, divide and conquer, implementation, math		x3346
1662N	Drone Photo combinatorics, math, sortings		x687
1662L	Il Derby della Madonnina data structures, dp, math		x988
1662H	Boundary brute force, math		x2780
1662E	Round Table math		x126
1662C	European Trip dp, graphs, math, matrices		x288
1661E	Narrow Components brute force, data structures, dp, dsu, math, trees	2500	x910
1661C	Water the Trees binary search, greedy, math	1700	x8942
1661A	Array Balancing greedy, math	800	x18181
1660F2	Promising String (hard version) data structures, implementation, math, strings	2100	x2585
1660F1	Promising String (easy version) brute force, implementation, math, strings	1700	x6961
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8091
1660B	Vlad and Candies math	800	x27446
1660A	Vasya and Coins greedy, math	800	x34940
1659D	Reverse Sort Sum constructive algorithms, data structures, greedy, implementation, math, two pointers	1900	x3859
1659C	Line Empire binary search, brute force, dp, greedy, implementation, math	1500	x9611