Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
33:25:06
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1821D	Black Cells binary search, brute force, greedy, math	1900	x4734
630H	Benches combinatorics, math	1400	x4733
1493D	GCD of an Array brute force, data structures, hashing, implementation, math, number theory, sortings, two pointers	2100	x4731
353C	Find Maximum implementation, math, number theory	1600	x4711
1355E	Restorer Distance binary search, greedy, math, sortings, ternary search	2100	x4706
1657D	For Gamers. By Gamers. binary search, brute force, greedy, math, sortings	2000	x4695
1616D	Keep the Average High dp, greedy, math	2000	x4690
1898D	Absolute Beauty greedy, math	1900	x4683
578A	A Problem about Polyline geometry, math	1700	x4683
1294E	Obtain a Permutation greedy, implementation, math	1900	x4681
809A	Do you want a date? implementation, math, sortings	1500	x4649
1423K	Lonely Numbers binary search, math, number theory, two pointers	1600	x4648
375A	Divisible by Seven math, number theory	1600	x4645
136B	Ternary Logic implementation, math	1100	x4639
451D	Count Good Substrings math	2000	x4637
1042C	Array Product constructive algorithms, greedy, math	1700	x4623
1380D	Berserk And Fireball constructive algorithms, greedy, implementation, math, two pointers	2000	x4613
884C	Bertown Subway dfs and similar, greedy, math	1500	x4610
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4596
466B	Wonder Room brute force, math	2000	x4589
1830B	The BOSS Can Count Pairs brute force, math	2000	x4573
405C	Unusual Product implementation, math	1600	x4563
1579F	Array Stabilization (AND version) brute force, graphs, math, number theory, shortest paths	1700	x4560
986B	Petr and Permutations combinatorics, math	1800	x4553
652A	Gabriel and Caterpillar implementation, math	1400	x4550
748C	Santa Claus and Robot constructive algorithms, math	1400	x4539
197B	Limit math	1400	x4533
992C	Nastya and a Wardrobe math	1600	x4508
402A	Nuts greedy, math	1100	x4506
630N	Forecast math	1300	x4501
90A	Cableway greedy, math	1000	x4497
120A	Elevator brute force, implementation, math	1000	x4487
94B	Friends graphs, implementation, math	1300	x4479
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4472
1632D	New Year Concert binary search, data structures, greedy, math, number theory, two pointers	2000	x4452
983A	Finite or not? implementation, math	1700	x4447
475D	CGCDSSQ brute force, data structures, math	2000	x4446
1092D1	Great Vova Wall (Version 1) greedy, implementation, math	2200	x4439
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x4436
1613D	MEX Sequences dp, math	1900	x4427
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x4421
911D	Inversion Counting brute force, math	1800	x4414
1195D2	Submarine in the Rybinsk Sea (hard edition) combinatorics, math, number theory	1800	x4411
900C	Remove Extra One brute force, data structures, math	1700	x4408
597A	Divisibility math	1600	x4408
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	1800	x4405
1567D	Expression Evaluation Error constructive algorithms, greedy, implementation, math	2000	x4398
401B	Sereja and Contests greedy, implementation, math	1200	x4377
894B	Ralph And His Magic Field combinatorics, constructive algorithms, math, number theory	1800	x4369
1043D	Mysterious Crime brute force, combinatorics, math, meet-in-the-middle, two pointers	1700	x4366
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4360
71B	Progress Bar implementation, math	1300	x4354
773A	Success Rate binary search, math	1700	x4352
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4351
869C	The Intriguing Obsession combinatorics, dp, math	1800	x4348
711D	Directed Roads combinatorics, dfs and similar, graphs, math	1900	x4347
1538G	Gift Set binary search, greedy, math, ternary search	2100	x4345
789B	Masha and geometric depression brute force, implementation, math	1700	x4342
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4329
718A	Efim and Strange Grade dp, implementation, math	1700	x4316
936A	Save Energy! binary search, implementation, math	1700	x4313
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4312
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4307
964B	Messages math	1300	x4300
626C	Block Towers brute force, greedy, math, number theory	1600	x4285
894C	Marco and GCD Sequence constructive algorithms, math	1900	x4277
11B	Jumping Jack math	1600	x4277
507C	Guess Your Way Out! implementation, math, trees	1700	x4273
678D	Iterated Linear Function math, number theory	1700	x4261
1717D	Madoka and The Corruption Scheme combinatorics, constructive algorithms, greedy, math	1900	x4241
154B	Colliders math, number theory	1600	x4223
7C	Line math, number theory	1800	x4222
1634D	Finding Zero constructive algorithms, interactive, math	2000	x4217
80B	Depression geometry, math	1200	x4216
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x4207
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x4201
257C	View Angle brute force, geometry, math	1800	x4186
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4182
792C	Divide by Three dp, greedy, math, number theory	2000	x4174
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4161
1753C	Wish I Knew How to Sort dp, math, probabilities	2000	x4145
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4142
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4125
340C	Tourist Problem combinatorics, implementation, math	1600	x4099
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4095
520C	DNA Alignment math, strings	1500	x4082
140A	New Year Table geometry, math	1700	x4080
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4072
772A	Voltage Keepsake binary search, math	1800	x4067
1056B	Divide Candies math, number theory	1600	x4065
112B	Petya and Square implementation, math	1200	x4061
1438D	Powerful Ksenia bitmasks, constructive algorithms, math	2200	x4060
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4046
1389D	Segment Intersections brute force, greedy, implementation, math	2100	x4021
1618F	Reverse bitmasks, constructive algorithms, dfs and similar, implementation, math, strings	2000	x4015
1250L	Divide The Students binary search, greedy, math	1500	x4015
1677B	Tokitsukaze and Meeting data structures, implementation, math	1700	x4009
1650E	Rescheduling the Exam binary search, data structures, greedy, implementation, math, sortings	1900	x4002
1117D	Magic Gems dp, math, matrices	2100	x4000
1144E	Median String bitmasks, math, number theory, strings	1900	x3986