Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
47:59:00
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Codeforces Round 941 (Div. 2)
47:59:02
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Problems

#	Name
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x38211
1388E	Uncle Bogdan and Projections data structures, geometry, sortings	2700	x390
1388D	Captain Flint and Treasure data structures, dfs and similar, graphs, greedy, implementation, trees	2000	x6115
1388C	Uncle Bogdan and Country Happiness dfs and similar, greedy, math, trees	1800	x9329
1388B	Captain Flint and a Long Voyage greedy, math	1000	x21876
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x24525
1387C	Viruses *special problem, dp, shortest paths, string suffix structures	2900	x122
1387B2	Village (Maximum) *special problem, dfs and similar, trees	2500	x791
1387B1	Village (Minimum) *special problem, dp, greedy, trees	2100	x1305
1387A	Graph *special problem, binary search, dfs and similar, dp, math, ternary search	2100	x670
1386C	Joker *special problem, bitmasks, data structures, divide and conquer, dsu	2800	x428
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x118
1386A	Colors *special problem, binary search, constructive algorithms, interactive	2700	x249
1385G	Columns Swaps 2-sat, dfs and similar, dsu, graphs, implementation	2300	x1300
1385F	Removing Leaves data structures, greedy, implementation, trees	2300	x2243
1385E	Directing Edges constructive algorithms, dfs and similar, graphs	2000	x6771
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18278
1385C	Make It Good greedy	1200	x26107
1385B	Restore the Permutation by Merger greedy	800	x36219
1385A	Three Pairwise Maximums math	800	x37483
1384B2	Koa and the Beach (Hard Version) constructive algorithms, dp, greedy, implementation	2200	x2439
1384B1	Koa and the Beach (Easy Version) brute force, dp, greedy	1900	x3832
1384A	Common Prefixes constructive algorithms, greedy, strings	1200	x18362
1383F	Special Edges flows, graphs	3200	x318
1383E	Strange Operation combinatorics, data structures, dp	2800	x746
1383D	Rearrange brute force, constructive algorithms, graphs, greedy, sortings	2800	x639
1383C	String Transformation 2 bitmasks, dp, graphs, trees	3100	x556
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4751
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x10224
1382B	Sequential Nim dp, games	1100	x23848
1382A	Common Subsequence brute force	800	x26032
1381E	Origami geometry, math, sortings	3300	x100
1381D	The Majestic Brown Tree Snake dfs and similar, dp, greedy, trees, two pointers	3000	x446
1381C	Mastermind constructive algorithms, graph matchings, greedy, implementation, sortings, two pointers	2500	x1388
1381B	Unmerge dp	1800	x8478
1381A2	Prefix Flip (Hard Version) constructive algorithms, data structures, implementation, strings, two pointers	1700	x12733
1381A1	Prefix Flip (Easy Version) constructive algorithms, data structures, strings	1300	x19823
1380G	Circular Dungeon greedy, math, probabilities	2600	x763
1380F	Strange Addition data structures, dp, matrices	2600	x753
1380E	Merging Towers data structures, dsu, implementation, trees	2300	x1896
1380D	Berserk And Fireball constructive algorithms, greedy, implementation, math, two pointers	2000	x4613
1380C	Create The Teams brute force, dp, greedy, implementation, sortings	1400	x19848
1380B	Universal Solution greedy	1400	x14207
1380A	Three Indices brute force, data structures	900	x23122
1379F2	Chess Strikes Back (hard version) data structures, divide and conquer	2800	x462
1379F1	Chess Strikes Back (easy version) binary search, data structures	2700	x560
1379E	Inverse Genealogy constructive algorithms, divide and conquer, dp, math, trees	2800	x387
1379D	New Passenger Trams binary search, brute force, data structures, sortings, two pointers	2300	x1057
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5397
1379B	Dubious Cyrpto binary search, brute force, math, number theory	1500	x12461
1379A	Acacius and String brute force, implementation, strings	1500	x11596
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x76
1375H	Set Merging constructive algorithms, divide and conquer	3300	x394
1375G	Tree Modification brute force, constructive algorithms, dfs and similar, graph matchings, graphs, trees	2800	x1637
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x1927
1375E	Inversion SwapSort constructive algorithms, greedy, sortings	2500	x2764
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8704
1375C	Element Extermination constructive algorithms, data structures, greedy	1400	x20399
1375B	Neighbor Grid constructive algorithms, greedy	1200	x16907
1375A	Sign Flipping constructive algorithms, math	1100	x18029
1374F	Cyclic Shifts Sorting brute force, constructive algorithms, implementation, sortings	2400	x1254
1374E2	Reading Books (hard version) data structures, greedy, implementation, sortings, ternary search, two pointers	2500	x897
1374E1	Reading Books (easy version) data structures, greedy, sortings	1600	x13500
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22131
1374C	Move Brackets greedy, strings	1000	x43197
1374B	Multiply by 2, divide by 6 math	900	x45611
1374A	Required Remainder math	800	x50426
1373G	Pawns data structures, divide and conquer, greedy	2600	x758
1373F	Network Coverage binary search, constructive algorithms, data structures, greedy	2400	x1618
1373E	Sum of Digits brute force, constructive algorithms, dp, greedy	2200	x2691
1373D	Maximum Sum on Even Positions divide and conquer, dp, greedy, implementation	1600	x14919
1373C	Pluses and Minuses math	1300	x17892
1373B	01 Game games	900	x32644
1373A	Donut Shops greedy, implementation, math	1000	x25748
1372F	Omkar and Modes binary search, divide and conquer, interactive	2700	x422
1372E	Omkar and Last Floor dp, greedy, two pointers	2900	x960
1372D	Omkar and Circle brute force, dp, games, greedy	2100	x5285
1372C	Omkar and Baseball constructive algorithms, math	1500	x17347
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x26044
1372A	Omkar and Completion constructive algorithms, implementation	800	x31382
1371F	Raging Thunder data structures, divide and conquer, implementation	2800	x501
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2292
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4947
1371D	Grid-00100 constructive algorithms, greedy, implementation	1600	x12785
1371C	A Cookie for You greedy, implementation, math	1300	x20147
1371B	Magical Calendar math	1200	x18991
1371A	Magical Sticks math	800	x44166
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1232
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1354
1370E	Binary Subsequence Rotation binary search, constructive algorithms, data structures, greedy	2100	x4607
1370D	Odd-Even Subsequence binary search, dp, dsu, greedy, implementation	2000	x9109
1370C	Number Game games, math, number theory	1400	x23476
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23045
1370A	Maximum GCD greedy, implementation, math, number theory	800	x48544
1369F	BareLee dfs and similar, dp, games	2700	x596
1369E	DeadLee data structures, dfs and similar, greedy, implementation, sortings	2400	x2013
1369D	TediousLee dp, graphs, greedy, math, trees	1900	x8247
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19002
1369B	AccurateLee greedy, implementation, strings	1200	x23714
1369A	FashionabLee geometry, math	800	x35515