Problemset - Codeforces

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Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)
02:10:32
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Problems

#	Name
1186E	Vus the Cossack and a Field divide and conquer, implementation, math	2500	x619
1186C	Vus the Cossack and Strings implementation, math	1800	x6038
1185G2	Playlist for Polycarp (hard version) combinatorics, dp	2600	x728
1185G1	Playlist for Polycarp (easy version) bitmasks, combinatorics, dp	2100	x2811
1185F	Two Pizzas bitmasks, brute force	2100	x2017
1185E	Polycarp and Snakes brute force, implementation	2000	x2634
1185D	Extra Element implementation, math	1700	x6659
1185C2	Exam in BerSU (hard version) brute force, data structures, greedy, math	1700	x7400
1184E3	Daleks' Invasion (hard) data structures, dsu, graphs, trees	2400	x500
1184E2	Daleks' Invasion (medium) dfs and similar, graphs, shortest paths, trees	2100	x918
1184E1	Daleks' Invasion (easy) graphs, trees	1900	x1586
1184D2	Parallel Universes (Hard) math, matrices	3100	x104
1184C3	Heidi and the Turing Test (Hard)	3200	x41
1184C2	Heidi and the Turing Test (Medium) data structures	2200	x605
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x171
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x571
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x139
1184A2	Heidi Learns Hashing (Medium) brute force, number theory	2100	x947
1183H	Subsequences (hard version) dp, strings	1900	x3100
1183G	Candy Box (hard version) greedy, implementation, sortings	2000	x2327
1183F	Topforces Strikes Back brute force, math, sortings	2100	x1986
1183E	Subsequences (easy version) dp, graphs, implementation, shortest paths	2000	x4731
1182F	Maximum Sine binary search, data structures, number theory	2700	x334
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2617
1182D	Complete Mirror constructive algorithms, dfs and similar, dp, hashing, implementation, trees	2400	x816
1182C	Beautiful Lyrics data structures, greedy, strings	1700	x4396
1181E2	A Story of One Country (Hard) brute force, greedy, sortings	3000	x273
1181E1	A Story of One Country (Easy) brute force, divide and conquer, sortings	2500	x462
1181D	Irrigation binary search, data structures, implementation, sortings, trees, two pointers	2200	x2257
1181C	Flag brute force, combinatorics, dp, implementation	1900	x3032
1179E	Alesya and Discrete Math divide and conquer, interactive	3200	x173
1179D	Fedor Runs for President data structures, dp, trees	2700	x799
1179C	Serge and Dining Room binary search, data structures, graph matchings, greedy, implementation, math, trees	2200	x1987
1179B	Tolik and His Uncle constructive algorithms	1800	x4322
1178H	Stock Exchange binary search, flows, graphs	3500	x225
1178G	The Awesomest Vertex data structures, dfs and similar	3000	x432
1178F2	Long Colorful Strip dp	2600	x871
1178F1	Short Colorful Strip combinatorics, dfs and similar, dp	2200	x2075
1178E	Archaeology brute force, constructive algorithms, greedy, strings	1900	x4286
1177B	Digits Sequence (Hard Edition) binary search, divide and conquer, implementation	1800	x2439
1176F	Destroy it! dp, implementation, sortings	2100	x1973
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x10765
1176D	Recover it! dfs and similar, graphs, greedy, number theory, sortings	1800	x5212
1175G	Yet Another Partiton Problem data structures, divide and conquer, dp, geometry, two pointers	3000	x448
1175F	The Number of Subpermutations brute force, data structures, divide and conquer, hashing, math	2500	x1660
1175E	Minimal Segment Cover data structures, dfs and similar, divide and conquer, dp, greedy, implementation, trees	2200	x3436
1175D	Array Splitting greedy, sortings	1900	x6033
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1548
1174E	Ehab and the Expected GCD Problem combinatorics, dp, math, number theory	2500	x1381
1174D	Ehab and the Expected XOR Problem bitmasks, constructive algorithms	1900	x4648
1172F	Nauuo and Bug data structures	3300	x421
1172E	Nauuo and ODT data structures	3300	x299
1172D	Nauuo and Portals constructive algorithms	2900	x488
1172C2	Nauuo and Pictures (hard version) dp, probabilities	2600	x829
1172C1	Nauuo and Pictures (easy version) dp, probabilities	2300	x1055
1172B	Nauuo and Circle combinatorics, dfs and similar, dp, trees	1900	x3943
1172A	Nauuo and Cards greedy, implementation	1800	x4919
1168E	Xor Permutations constructive algorithms, math	3100	x363
1168D	Anagram Paths dp, implementation, trees	3000	x342
1168C	And Reachability bitmasks, dp	2200	x2355
1168B	Good Triple brute force, two pointers	1900	x3534
1168A	Increasing by Modulo binary search, greedy	1700	x6653
1167G	Low Budget Inception brute force, geometry	3100	x148
1167F	Scalar Queries combinatorics, data structures, math, sortings	2300	x1600
1167E	Range Deleting binary search, combinatorics, data structures, two pointers	2100	x2607
1166F	Vicky's Delivery Service data structures, dsu, graphs, hashing	2400	x691
1166E	The LCMs Must be Large bitmasks, brute force, constructive algorithms, math, number theory	2100	x2801
1166D	Cute Sequences binary search, brute force, greedy, math	2200	x2147
1165F2	Microtransactions (hard version) binary search, greedy, implementation	2000	x2128
1165F1	Microtransactions (easy version) binary search, greedy	2000	x1857
1163F	Indecisive Taxi Fee data structures, graphs, shortest paths	3000	x837
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2400	x651
1163D	Mysterious Code dp, strings	2100	x1236
1163C2	Power Transmission (Hard Edition) data structures, geometry, implementation, math	1900	x3558
1163C1	Power Transmission (Easy Edition) brute force, geometry	1900	x3277
1158F	Density of subarrays dp, math	3500	x397
1158E	Strange device binary search, interactive, math, trees	3400	x150
1158D	Winding polygonal line constructive algorithms, geometry, greedy, math	2600	x720
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2100	x1907
1158B	The minimal unique substring constructive algorithms, math, strings	2200	x2211
1157G	Inverse of Rows and Columns brute force, constructive algorithms	2200	x903
1157F	Maximum Balanced Circle constructive algorithms, dp, greedy, two pointers	2000	x2583
1157E	Minimum Array binary search, data structures, greedy	1700	x8270
1157D	N Problems During K Days constructive algorithms, greedy, math	1900	x3699
1157C2	Increasing Subsequence (hard version) greedy	1700	x7905
1156G	Optimizer graphs, greedy, hashing, implementation	2700	x125
1156F	Card Bag dp, math, probabilities	2300	x1358
1156E	Special Segments of Permutation data structures, divide and conquer, dsu, two pointers	2200	x2892
1156D	0-1-Tree dfs and similar, divide and conquer, dp, dsu, trees	2200	x3779
1156C	Match Points binary search, greedy, sortings, ternary search, two pointers	2000	x5989
1156B	Ugly Pairs dfs and similar, greedy, implementation, sortings, strings	1800	x6167
1155F	Delivery Oligopoly brute force, dp, graphs	2800	x408
1155E	Guess the Root brute force, interactive, math	2200	x1402
1155D	Beautiful Array brute force, data structures, divide and conquer, dp, greedy	1900	x6806
1154G	Minimum Possible LCM brute force, greedy, math, number theory	2200	x2673
1154F	Shovels Shop dp, greedy, sortings	2100	x2794
1154E	Two Teams data structures, implementation, sortings	1800	x6161
1153F	Serval and Bonus Problem combinatorics, dp, math, probabilities	2600	x766
1153E	Serval and Snake binary search, brute force, interactive	2200	x1457
1153D	Serval and Rooted Tree binary search, dfs and similar, dp, greedy, trees	1900	x4876