Problemset - Codeforces

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Codeforces Round 1101 (Div. 2)
01:48:31
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constructive algorithms

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Problems

#	Name
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x10336
1708B	Difference of GCDs constructive algorithms, math	1100	x28813
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x175
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x15505
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1943
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x7735
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x24274
1705F	Mark and the Online Exam bitmasks, constructive algorithms, interactive, probabilities	2900	x697
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x7182
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x25527
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x239
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x134
1704F	Colouring Game constructive algorithms, dp, games	2600	x1309
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2695
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x5387
1704A	Two 0-1 Sequences constructive algorithms, greedy	800	x16670
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x9510
1702A	Round Down the Price constructive algorithms	800	x38316
1700F	Puzzle constructive algorithms, dp, greedy	2600	x1064
1700E	Serega the Pirate brute force, constructive algorithms	2600	x961
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x12215
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x19924
1700A	Optimal Path constructive algorithms, greedy, math	800	x23702
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x10767
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x21762
1699A	The Third Three Number Problem constructive algorithms, math	800	x24844
1698F	Equal Reversal constructive algorithms, graphs, implementation, math	2800	x759
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x12200
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x21481
1697F	Too Many Constraints 2-sat, constructive algorithms, graphs, implementation	2800	x731
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1452
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x5008
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x15835
1696F	Tree Recovery brute force, constructive algorithms, dfs and similar, dsu, graphs, trees	2600	x1144
1696D	Permutation Graph binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths	1900	x6028
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x12596
1695E	Ambiguous Dominoes constructive algorithms, dfs and similar, graphs	2700	x514
1695D2	Tree Queries (Hard Version) constructive algorithms, dfs and similar, dp, greedy, trees	2300	x2301
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2465
1694B	Paranoid String constructive algorithms, greedy	1200	x20695
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x7542
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x17285
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x35907
1690A	Print a Pedestal (Codeforces logo?) constructive algorithms, greedy	800	x35691
1689E	ANDfinity bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2500	x1367
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x8780
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x19065
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x312
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x4152
1685D2	Permutation Weight (Hard Version) constructive algorithms, greedy	3500	x132
1685D1	Permutation Weight (Easy Version) constructive algorithms, dfs and similar, dsu	2800	x518
1685C	Bring Balance brute force, constructive algorithms, greedy	2600	x1351
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x18627
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x289
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x790
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3644
1684D	Traps constructive algorithms, greedy, sortings	1700	x10790
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x13302
1684B	Z mod X = C constructive algorithms, math	800	x21865
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x24963
1682E	Unordered Swaps constructive algorithms, dfs and similar, graphs, greedy, math, sortings, trees	2700	x752
1682D	Circular Spanning Tree constructive algorithms, implementation, trees	2000	x3731
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x16513
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x26842
1677C	Tokitsukaze and Two Colorful Tapes constructive algorithms, dfs and similar, graphs, greedy	1900	x4098
1674E	Breaking the Wall binary search, brute force, constructive algorithms, greedy, math	2000	x7326
1674D	A-B-C Sort constructive algorithms, implementation, sortings	1200	x17826
1674A	Number Transformation constructive algorithms, math	800	x28011
1673F	Anti-Theft Road Planning bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math	2400	x964
1672H	Zigu Zagu constructive algorithms, data structures, greedy	2700	x1133
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x461
1672F2	Checker for Array Shuffling constructive algorithms, dfs and similar, graphs	2800	x939
1672F1	Array Shuffling constructive algorithms, graphs, greedy	2000	x3563
1672E	notepad.exe binary search, constructive algorithms, greedy, interactive	2200	x2526
1672D	Cyclic Rotation constructive algorithms, greedy, implementation, two pointers	1700	x6964
1672C	Unequal Array constructive algorithms, greedy, implementation	1100	x14052
1672B	I love AAAB constructive algorithms, implementation	800	x16486
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x8476
1670E	Hemose on the Tree bitmasks, constructive algorithms, dfs and similar, trees	2200	x1942
1667D	Edge Elimination constructive algorithms, dfs and similar, dp, trees	2900	x812
1667C	Half Queen Cover constructive algorithms, math	2400	x1977
1666J	Job Lookup constructive algorithms, dp, shortest paths, trees	2100	x1585
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1777
1666E	Even Split binary search, constructive algorithms, greedy, math	2500	x884
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3711
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x4685
1665B	Array Cloning Technique constructive algorithms, greedy, sortings	900	x33511
1665A	GCD vs LCM constructive algorithms, math	800	x26281
1663H	Cross-Language Program *special problem, constructive algorithms		x1354
1663G	Six Characters *special problem, constructive algorithms, strings		x225
1662M	Bottle Arrangements constructive algorithms		x3877
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x8099
1659E	AND-MEX Walk bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2200	x1978
1659D	Reverse Sort Sum constructive algorithms, data structures, greedy, implementation, math, two pointers	1900	x4455
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x12044
1659A	Red Versus Blue constructive algorithms, greedy, implementation, math	1000	x31546
1658F	Juju and Binary String brute force, constructive algorithms, greedy, math	2700	x946
1658C	Shinju and the Lost Permutation constructive algorithms, math	1700	x9961
1658A	Marin and Photoshoot constructive algorithms, implementation, math	800	x20918
1656I	Neighbour Ordering constructive algorithms, graphs	3500	x154

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