Problemset - Codeforces

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Codeforces Round 953 (Div. 2)
36:29:20
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constructive algorithms

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Problems

#	Name
1712D	Empty Graph binary search, constructive algorithms, data structures, greedy, shortest paths	2000	x4317
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21327
1711A	Perfect Permutation constructive algorithms	800	x24879
1710D	Recover the Tree constructive algorithms, trees	3400	x411
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1288
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10679
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8601
1708B	Difference of GCDs constructive algorithms, math	1100	x19798
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x146
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x13006
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1662
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x6736
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x22640
1705F	Mark and the Online Exam bitmasks, constructive algorithms, interactive, probabilities	2900	x584
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6152
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x22317
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x173
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x99
1704F	Colouring Game constructive algorithms, dp, games	2600	x943
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2243
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4888
1704A	Two 0-1 Sequences constructive algorithms, greedy	800	x15837
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x8048
1702A	Round Down the Price constructive algorithms	800	x33764
1700F	Puzzle constructive algorithms, dp, greedy	2600	x862
1700E	Serega the Pirate brute force, constructive algorithms	2600	x831
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x10567
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x18356
1700A	Optimal Path constructive algorithms, greedy, math	800	x22632
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9486
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19290
1699A	The Third Three Number Problem constructive algorithms, math	800	x23716
1698F	Equal Reversal constructive algorithms, graphs, implementation, math	2800	x596
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x8807
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x20702
1697F	Too Many Constraints 2-sat, constructive algorithms, graphs, implementation	2800	x525
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1152
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x4311
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x14045
1696F	Tree Recovery brute force, constructive algorithms, dfs and similar, dsu, graphs, trees	2600	x855
1696D	Permutation Graph binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths	1900	x5236
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11371
1695E	Ambiguous Dominoes constructive algorithms, dfs and similar, graphs	2700	x426
1695D2	Tree Queries (Hard Version) constructive algorithms, dfs and similar, dp, greedy, trees	2300	x1933
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2103
1694B	Paranoid String constructive algorithms, greedy	1200	x18660
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5563
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15222
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21697
1690A	Print a Pedestal (Codeforces logo?) constructive algorithms, greedy	800	x32749
1689E	ANDfinity bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2500	x1158
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x7973
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x17975
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x221
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3513
1685D2	Permutation Weight (Hard Version) constructive algorithms, greedy	3500	x105
1685D1	Permutation Weight (Easy Version) constructive algorithms, dfs and similar, dsu	2800	x428
1685C	Bring Balance brute force, constructive algorithms, greedy	2600	x945
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x16612
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x236
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x583
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3073
1684D	Traps constructive algorithms, greedy, sortings	1700	x9400
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12102
1684B	Z mod X = C constructive algorithms, math	800	x20697
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23602
1682E	Unordered Swaps constructive algorithms, dfs and similar, graphs, greedy, math, sortings, trees	2700	x567
1682D	Circular Spanning Tree constructive algorithms, implementation, trees	2000	x3211
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x14262
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x17560
1677C	Tokitsukaze and Two Colorful Tapes constructive algorithms, dfs and similar, graphs, greedy	1900	x3470
1674E	Breaking the Wall binary search, brute force, constructive algorithms, greedy, math	2000	x6214
1674D	A-B-C Sort constructive algorithms, implementation, sortings	1200	x15879
1674A	Number Transformation constructive algorithms, math	800	x25805
1673F	Anti-Theft Road Planning bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math	2400	x779
1672H	Zigu Zagu constructive algorithms, data structures, greedy	2700	x918
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x316
1672F2	Checker for Array Shuffling constructive algorithms, dfs and similar, graphs	2800	x780
1672F1	Array Shuffling constructive algorithms, graphs, greedy	2000	x3004
1672E	notepad.exe binary search, constructive algorithms, greedy, interactive	2200	x2105
1672D	Cyclic Rotation constructive algorithms, greedy, implementation, two pointers	1700	x6054
1672C	Unequal Array constructive algorithms, greedy, implementation	1100	x13022
1672B	I love AAAB constructive algorithms, implementation	800	x15663
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x7388
1670E	Hemose on the Tree bitmasks, constructive algorithms, dfs and similar, trees	2200	x1690
1667D	Edge Elimination constructive algorithms, dfs and similar, dp, trees	2900	x646
1667C	Half Queen Cover constructive algorithms, math	2400	x1531
1666J	Job Lookup constructive algorithms, dp, shortest paths, trees	2100	x1298
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1392
1666E	Even Split binary search, constructive algorithms, greedy, math	2500	x687
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3097
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x3745
1665B	Array Cloning Technique constructive algorithms, greedy, sortings	900	x19106
1665A	GCD vs LCM constructive algorithms, math	800	x23131
1663H	Cross-Language Program *special problem, constructive algorithms		x1269
1663G	Six Characters *special problem, constructive algorithms, strings		x206
1662M	Bottle Arrangements constructive algorithms		x3318
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x7046
1659E	AND-MEX Walk bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2200	x1478
1659D	Reverse Sort Sum constructive algorithms, data structures, greedy, implementation, math, two pointers	1900	x3908