Problemset - Codeforces

Problems

#	Name
1220B	Multiplication Table math, number theory	1300	x11657
1217E	Sum Queries? data structures, greedy, implementation, math	2300	x1899
1217B	Zmei Gorynich greedy, math	1600	x11300
1217A	Creating a Character binary search, math	1300	x15057
1216E2	Numerical Sequence (hard version) binary search, math	2200	x1493
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3467
1216D	Swords math	1300	x11182
1216C	White Sheet geometry, math	1700	x9331
1215D	Ticket Game games, greedy, math	1700	x6205
1215A	Yellow Cards greedy, implementation, math	1000	x11595
1214E	Petya and Construction Set constructive algorithms, graphs, math, sortings, trees	2000	x2709
1214B	Badges brute force, math	1100	x10880
1214A	Optimal Currency Exchange brute force, math	1400	x9123
1213D2	Equalizing by Division (hard version) brute force, math, sortings	1600	x11488
1213C	Book Reading math	1200	x18550
1213A	Chips Moving math	900	x24169
1211G	King's Path *special problem, math, trees	2500	x71
1211D	Teams *special problem, binary search, greedy, math	2000	x230
1210E	Wojtek and Card Tricks math	2700	x408
1210C	Kamil and Making a Stream math, number theory, trees	2000	x3356
1209H	Moving Walkways data structures, greedy, math	3300	x142
1209B	Koala and Lights implementation, math, number theory	1300	x8181
1209A	Paint the Numbers greedy, implementation, math	800	x12253
1208G	Polygons greedy, math, number theory	2800	x778
1208A	XORinacci math	900	x16887
1207E	XOR Guessing bitmasks, interactive, math	1900	x6010
1207A	There Are Two Types Of Burgers brute force, greedy, implementation, math	800	x21977
1206A	Choose Two Numbers math, sortings	800	x24545
1205F	Beauty of a Permutation constructive algorithms, math	3400	x123
1205A	Almost Equal constructive algorithms, greedy, math	1200	x14197
1204E	Natasha, Sasha and the Prefix Sums combinatorics, dp, math, number theory	2300	x1696
1204D2	Kirk and a Binary String (hard version) data structures, greedy, math, strings	2100	x3256
1204B	Mislove Has Lost an Array greedy, math	900	x17568
1204A	BowWow and the Timetable math	1000	x21012
1203C	Common Divisors implementation, math	1300	x20869
1203B	Equal Rectangles greedy, math	1200	x16041
1202F	You Are Given Some Letters... binary search, implementation, math	2700	x415
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x5131
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x2580
1201C	Maximum Median binary search, greedy, math, sortings	1400	x24215
1201B	Zero Array greedy, math	1500	x19159
1200F	Graph Traveler brute force, data structures, dfs and similar, dp, graphs, implementation, math, number theory	2300	x1082
1200C	Round Corridor math, number theory	1400	x9914
1199B	Water Lily geometry, math	1000	x20708
1197D	Yet Another Subarray Problem dp, greedy, math	1900	x5429
1197A	DIY Wooden Ladder greedy, math, sortings	900	x13582
1196B	Odd Sum Segments constructive algorithms, math	1200	x16696
1196A	Three Piles of Candies brute force, constructive algorithms, math	800	x27832
1195F	Geometers Anonymous Club data structures, geometry, math, sortings	2500	x899
1195D2	Submarine in the Rybinsk Sea (hard edition) combinatorics, math, number theory	1800	x4674
1195D1	Submarine in the Rybinsk Sea (easy edition) combinatorics, math, number theory	1500	x7905
1195B	Sport Mafia binary search, brute force, math	1000	x19977
1195A	Drinks Choosing greedy, math	1000	x13167
1194D	1-2-K Game games, math	1700	x6602
1194A	Remove a Progression math	800	x16375
1193A	Amusement Park *special problem, dp, math		x278
1189C	Candies! data structures, dp, implementation, math	1400	x10624
1189B	Number Circle greedy, math, sortings	1100	x14337
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x4589
1187F	Expected Square Beauty dp, math, probabilities	2500	x888
1187A	Stickers and Toys math	900	x14911
1186E	Vus the Cossack and a Field divide and conquer, implementation, math	2500	x631
1186D	Vus the Cossack and Numbers constructive algorithms, greedy, math	1500	x8970
1186C	Vus the Cossack and Strings implementation, math	1800	x6141
1185D	Extra Element implementation, math	1700	x6747
1185C2	Exam in BerSU (hard version) brute force, data structures, greedy, math	1700	x7482
1185A	Ropewalkers math	800	x14933
1184D2	Parallel Universes (Hard) math, matrices	3100	x107
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x139
1184A1	Heidi Learns Hashing (Easy) brute force, math, number theory	1200	x5993
1183F	Topforces Strikes Back brute force, math, sortings	2100	x2033
1183C	Computer Game binary search, math	1400	x14062
1183B	Equalize Prices math	900	x18568
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2860
1182A	Filling Shapes dp, math	1000	x31452
1181A	Chunga-Changa greedy, math	1000	x13700
1180A	Alex and a Rhombus dp, implementation, math	800	x25427
1179C	Serge and Dining Room binary search, data structures, graph matchings, greedy, implementation, math, trees	2200	x2086
1178D	Prime Graph constructive algorithms, greedy, math, number theory	1500	x7435
1178C	Tiles combinatorics, greedy, math	1300	x12042
1176B	Merge it! math	1100	x17222
1175F	The Number of Subpermutations brute force, data structures, divide and conquer, hashing, math	2500	x1941
1175A	From Hero to Zero implementation, math	900	x18331
1174E	Ehab and the Expected GCD Problem combinatorics, dp, math, number theory	2500	x1557
1170A	Three Integers Again *special problem, math		x1485
1169A	Circle Metro implementation, math	900	x11991
1168E	Xor Permutations constructive algorithms, math	3100	x379
1167F	Scalar Queries combinatorics, data structures, math, sortings	2300	x1649
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x11878
1166E	The LCMs Must be Large bitmasks, brute force, constructive algorithms, math, number theory	2100	x2847
1166D	Cute Sequences binary search, brute force, greedy, math	2200	x2181
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11506
1165E	Two Arrays and Sum of Functions greedy, math, sortings	1600	x8416
1165D	Almost All Divisors math, number theory	1600	x16300
1165A	Remainder implementation, math	1100	x13843
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2400	x687
1163C2	Power Transmission (Hard Edition) data structures, geometry, implementation, math	1900	x3681
1163A	Eating Soup greedy, math	900	x13039
1159B	Expansion coefficient of the array implementation, math	1300	x7093
1159A	A pile of stones implementation, math	800	x12722