Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
40:02:00
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Problems

#	Name
1214A	Optimal Currency Exchange brute force, math	1400	x8691
1213D2	Equalizing by Division (hard version) brute force, math, sortings	1600	x11006
1213C	Book Reading math	1200	x17915
1213A	Chips Moving math	900	x23447
1211G	King's Path *special problem, math, trees	2500	x66
1211D	Teams *special problem, binary search, greedy, math	2000	x222
1210E	Wojtek and Card Tricks math	2700	x389
1210C	Kamil and Making a Stream math, number theory, trees	2000	x3200
1209H	Moving Walkways data structures, greedy, math	3300	x133
1209B	Koala and Lights implementation, math, number theory	1300	x7931
1209A	Paint the Numbers greedy, implementation, math	800	x11918
1208G	Polygons greedy, math, number theory	2800	x719
1208A	XORinacci math	900	x16248
1207E	XOR Guessing bitmasks, interactive, math	1900	x5587
1207A	There Are Two Types Of Burgers brute force, greedy, implementation, math	800	x21272
1206A	Choose Two Numbers math, sortings	800	x23413
1205F	Beauty of a Permutation constructive algorithms, math	3400	x120
1205A	Almost Equal constructive algorithms, greedy, math	1200	x13798
1204E	Natasha, Sasha and the Prefix Sums combinatorics, dp, math, number theory	2300	x1569
1204D2	Kirk and a Binary String (hard version) data structures, greedy, math, strings	2100	x2969
1204B	Mislove Has Lost an Array greedy, math	900	x17086
1204A	BowWow and the Timetable math	1000	x19826
1203C	Common Divisors implementation, math	1300	x19503
1203B	Equal Rectangles greedy, math	1200	x15514
1202F	You Are Given Some Letters... binary search, implementation, math	2700	x366
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x4856
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x2345
1201C	Maximum Median binary search, greedy, math, sortings	1400	x21097
1201B	Zero Array greedy, math	1500	x17573
1200F	Graph Traveler brute force, data structures, dfs and similar, dp, graphs, implementation, math, number theory	2300	x905
1200C	Round Corridor math, number theory	1400	x9581
1199B	Water Lily geometry, math	1000	x19550
1197D	Yet Another Subarray Problem dp, greedy, math	1900	x5081
1197A	DIY Wooden Ladder greedy, math, sortings	900	x13232
1196B	Odd Sum Segments constructive algorithms, math	1200	x16092
1196A	Three Piles of Candies brute force, constructive algorithms, math	800	x27054
1195F	Geometers Anonymous Club data structures, geometry, math, sortings	2500	x691
1195D2	Submarine in the Rybinsk Sea (hard edition) combinatorics, math, number theory	1800	x4411
1195D1	Submarine in the Rybinsk Sea (easy edition) combinatorics, math, number theory	1500	x7657
1195B	Sport Mafia binary search, brute force, math	1000	x18893
1195A	Drinks Choosing greedy, math	1000	x12355
1194D	1-2-K Game games, math	1700	x6178
1194A	Remove a Progression math	800	x15819
1193A	Amusement Park *special problem, dp, math		x236
1189C	Candies! data structures, dp, implementation, math	1400	x10248
1189B	Number Circle greedy, math, sortings	1100	x13627
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x4198
1187F	Expected Square Beauty dp, math, probabilities	2500	x833
1187A	Stickers and Toys math	900	x14423
1186E	Vus the Cossack and a Field divide and conquer, implementation, math	2500	x554
1186D	Vus the Cossack and Numbers constructive algorithms, greedy, math	1500	x8695
1186C	Vus the Cossack and Strings implementation, math	1800	x5824
1185D	Extra Element implementation, math	1700	x6420
1185C2	Exam in BerSU (hard version) brute force, data structures, greedy, math	1700	x7126
1185A	Ropewalkers math	800	x14512
1184D2	Parallel Universes (Hard) math, matrices	3100	x101
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x135
1184A1	Heidi Learns Hashing (Easy) brute force, math, number theory	1200	x5810
1183F	Topforces Strikes Back brute force, math, sortings	2100	x1762
1183C	Computer Game binary search, math	1400	x13622
1183B	Equalize Prices math	900	x17947
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2516
1182A	Filling Shapes dp, math	1000	x28980
1181A	Chunga-Changa greedy, math	1000	x13077
1180A	Alex and a Rhombus dp, implementation, math	800	x24069
1179C	Serge and Dining Room binary search, data structures, graph matchings, greedy, implementation, math, trees	2200	x1942
1178D	Prime Graph constructive algorithms, greedy, math, number theory	1500	x7134
1178C	Tiles combinatorics, greedy, math	1300	x11204
1176B	Merge it! math	1100	x16744
1175F	The Number of Subpermutations brute force, data structures, divide and conquer, hashing, math	2500	x1535
1175A	From Hero to Zero implementation, math	900	x17591
1174E	Ehab and the Expected GCD Problem combinatorics, dp, math, number theory	2500	x1345
1170A	Three Integers Again *special problem, math		x1363
1169A	Circle Metro implementation, math	900	x11518
1168E	Xor Permutations constructive algorithms, math	3100	x352
1167F	Scalar Queries combinatorics, data structures, math, sortings	2300	x1426
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x10422
1166E	The LCMs Must be Large bitmasks, brute force, constructive algorithms, math, number theory	2100	x2638
1166D	Cute Sequences binary search, brute force, greedy, math	2200	x1994
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11106
1165E	Two Arrays and Sum of Functions greedy, math, sortings	1600	x7669
1165D	Almost All Divisors math, number theory	1600	x14953
1165A	Remainder implementation, math	1100	x13406
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2400	x642
1163C2	Power Transmission (Hard Edition) data structures, geometry, implementation, math	1900	x3427
1163A	Eating Soup greedy, math	900	x12619
1159B	Expansion coefficient of the array implementation, math	1300	x6860
1159A	A pile of stones implementation, math	800	x12189
1158F	Density of subarrays dp, math	3500	x391
1158E	Strange device binary search, interactive, math, trees	3400	x146
1158D	Winding polygonal line constructive algorithms, geometry, greedy, math	2600	x658
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2100	x1692
1158B	The minimal unique substring constructive algorithms, math, strings	2200	x2053
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x6718
1157D	N Problems During K Days constructive algorithms, greedy, math	1900	x3551
1156F	Card Bag dp, math, probabilities	2300	x1320
1155E	Guess the Root brute force, interactive, math	2200	x1388
1155C	Alarm Clocks Everywhere math, number theory	1300	x8986
1154G	Minimum Possible LCM brute force, greedy, math, number theory	2200	x2611
1154C	Gourmet Cat implementation, math	1400	x10135