Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
22:57:05
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Before contest
Codeforces Round 941 (Div. 2)
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constructive algorithms

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Problems

#	Name
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x3901
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x3905
1118E	Yet Another Ball Problem constructive algorithms, implementation	1700	x3921
1624E	Masha-forgetful brute force, constructive algorithms, dp, hashing, implementation, strings	2000	x3925
862C	Mahmoud and Ehab and the xor constructive algorithms	1900	x3929
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x3934
1773F	Football constructive algorithms	800	x3940
761D	Dasha and Very Difficult Problem binary search, brute force, constructive algorithms, greedy, sortings	1700	x3940
1023D	Array Restoration constructive algorithms, data structures	1700	x3944
1366E	Two Arrays binary search, brute force, combinatorics, constructive algorithms, dp, two pointers	2100	x3952
1621D	The Winter Hike constructive algorithms, greedy, math	2100	x3955
932C	Permutation Cycle brute force, constructive algorithms	1600	x3964
311A	The Closest Pair constructive algorithms, implementation	1300	x3992
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4008
1364D	Ehab's Last Corollary constructive algorithms, dfs and similar, graphs, greedy, implementation, trees	2100	x4010
1618F	Reverse bitmasks, constructive algorithms, dfs and similar, implementation, math, strings	2000	x4016
774C	Maximum Number *special problem, constructive algorithms, greedy, implementation	1200	x4018
1620D	Exact Change brute force, constructive algorithms, greedy	2000	x4022
1638D	Big Brush constructive algorithms, data structures, greedy, implementation	2000	x4029
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4046
1438D	Powerful Ksenia bitmasks, constructive algorithms, math	2200	x4061
8B	Obsession with Robots constructive algorithms, graphs, implementation	1400	x4064
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4072
1425H	Huge Boxes of Animal Toys constructive algorithms	1300	x4074
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4095
1178E	Archaeology brute force, constructive algorithms, greedy, strings	1900	x4113
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4126
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4126
617D	Polyline constructive algorithms, implementation	1700	x4128
865A	Save the problem! constructive algorithms	1400	x4135
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4182
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4186
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x4201
1634D	Finding Zero constructive algorithms, interactive, math	2000	x4217
1054C	Candies Distribution constructive algorithms, implementation	1500	x4228
1463D	Pairs binary search, constructive algorithms, greedy, two pointers	1900	x4229
1717D	Madoka and The Corruption Scheme combinatorics, constructive algorithms, greedy, math	1900	x4242
1712D	Empty Graph binary search, constructive algorithms, data structures, greedy, shortest paths	2000	x4251
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x4251
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4251
1521C	Nastia and a Hidden Permutation constructive algorithms, interactive	2000	x4273
1360H	Binary Median binary search, bitmasks, brute force, constructive algorithms	2100	x4276
894C	Marco and GCD Sequence constructive algorithms, math	1900	x4277
1179B	Tolik and His Uncle constructive algorithms	1800	x4294
1365F	Swaps Again constructive algorithms, implementation, sortings	2100	x4300
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4312
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4330
171A	Mysterious numbers - 1 *special problem, constructive algorithms	1200	x4343
623A	Graph and String constructive algorithms, graphs	1800	x4355
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4361
831C	Jury Marks brute force, constructive algorithms	1700	x4365
894B	Ralph And His Magic Field combinatorics, constructive algorithms, math, number theory	1800	x4369
644A	Parliament of Berland *special problem, constructive algorithms	1000	x4376
1286B	Numbers on Tree constructive algorithms, data structures, dfs and similar, graphs, greedy, trees	1800	x4380
1481D	AB Graph brute force, constructive algorithms, graphs, greedy, implementation	2000	x4384
1081B	Farewell Party constructive algorithms, implementation	1500	x4385
1428D	Bouncing Boomerangs constructive algorithms, greedy, implementation	1900	x4397
1567D	Expression Evaluation Error constructive algorithms, greedy, implementation, math	2000	x4398
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	1800	x4406
508C	Anya and Ghosts constructive algorithms, greedy	1600	x4406
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x4421
1493C	K-beautiful Strings binary search, brute force, constructive algorithms, greedy, strings	2000	x4450
1747D	Yet Another Problem binary search, bitmasks, constructive algorithms, data structures	1900	x4464
898E	Squares and not squares constructive algorithms, greedy	1600	x4484
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4492
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4520
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4520
748C	Santa Claus and Robot constructive algorithms, math	1400	x4539
329A	Purification constructive algorithms, greedy	1500	x4585
1174D	Ehab and the Expected XOR Problem bitmasks, constructive algorithms	1900	x4592
417C	Football constructive algorithms, graphs, implementation	1400	x4605
1370E	Binary Subsequence Rotation binary search, constructive algorithms, data structures, greedy	2100	x4607
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x4608
1380D	Berserk And Fireball constructive algorithms, greedy, implementation, math, two pointers	2000	x4613
980B	Marlin constructive algorithms	1600	x4617
1042C	Array Product constructive algorithms, greedy, math	1700	x4624
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4630
865D	Buy Low Sell High constructive algorithms, data structures, greedy	2400	x4714
803A	Maximal Binary Matrix constructive algorithms	1400	x4737
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x4739
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4754
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x4789
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4834
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x4862
1898C	Colorful Grid constructive algorithms	1700	x4870
214B	Hometask brute force, constructive algorithms, greedy, math	1600	x4878
803C	Maximal GCD constructive algorithms, greedy, math	1900	x4904
1290B	Irreducible Anagrams binary search, constructive algorithms, data structures, strings, two pointers	1800	x4906
1213E	Two Small Strings brute force, constructive algorithms	1900	x4908
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4910
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x4920
1485D	Multiples and Power Differences constructive algorithms, graphs, math, number theory	2200	x4929
1217D	Coloring Edges constructive algorithms, dfs and similar, graphs	2100	x4933
1439A2	Binary Table (Hard Version) constructive algorithms, graphs, greedy, implementation	1900	x4943
916C	Jamie and Interesting Graph constructive algorithms, graphs, shortest paths	1600	x4944
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x4963
746D	Green and Black Tea constructive algorithms, greedy, math	1500	x4974
710C	Magic Odd Square constructive algorithms, math	1500	x4980
1254A	Feeding Chicken constructive algorithms, greedy, implementation	1700	x4984
901A	Hashing Trees constructive algorithms, trees	1500	x5005