Problemset - Codeforces

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Codeforces Round 1134 (Div. 4)
5 days
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Problems

#	Name
1553D	Backspace dp, greedy, strings, two pointers	1500	x15440
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x20236
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x15710
1553A	Digits Sum math, number theory	800	x34945
1552I	Organizing a Music Festival dfs and similar, math	3400	x155
1552H	Guess the Perimeter binary search, interactive, number theory	3300	x473
1552G	A Serious Referee bitmasks, brute force, dfs and similar, sortings	3000	x708
1552F	Telepanting binary search, data structures, dp, sortings	2200	x3469
1552E	Colors and Intervals constructive algorithms, data structures, greedy, sortings	2300	x2176
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x8066
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x6373
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x17294
1552A	Subsequence Permutation sortings, strings	800	x25655
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x2293
1551E	Fixed Points binary search, brute force, dp	2000	x4696
1551D2	Domino (hard version) constructive algorithms, implementation, math	2100	x3070
1551D1	Domino (easy version) constructive algorithms, math	1700	x7709
1551C	Interesting Story greedy, sortings, strings	1500	x14821
1551B2	Wonderful Coloring - 2 binary search, constructive algorithms, data structures, greedy	1400	x16945
1551B1	Wonderful Coloring - 1 greedy, strings	800	x31844
1551A	Polycarp and Coins greedy, math	800	x60016
1550F	Jumping Around binary search, data structures, divide and conquer, dp, dsu, graphs, shortest paths	2700	x999
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1980
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x2125
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x11023
1550B	Maximum Cost Deletion greedy, math	1000	x28979
1550A	Find The Array greedy, math	800	x29775
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x27633
1549A	Gregor and Cryptography math, number theory	800	x36284
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x667
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x359
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1653
1548C	The Three Little Pigs combinatorics, dp, fft, math	2500	x2314
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x11956
1548A	Web of Lies brute force, graphs, greedy	1400	x18041
1547G	How Many Paths? dfs and similar, dp, graphs, trees	2100	x3855
1547F	Array Stabilization (GCD version) binary search, brute force, data structures, divide and conquer, number theory, two pointers	1900	x7488
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x16936
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x19128
1547C	Pair Programming greedy, two pointers	1100	x24918
1547B	Alphabetical Strings greedy, implementation, strings	800	x28297
1547A	Shortest Path with Obstacle implementation, math	800	x32788
1546B	AquaMoon and Stolen String interactive, math	1200	x14181
1546A	AquaMoon and Two Arrays brute force, greedy	800	x18678
1545F	AquaMoon and Potatoes brute force, data structures, dp	3500	x152
1545E2	AquaMoon and Time Stop (hard version) data structures, dp	3500	x110
1545E1	AquaMoon and Time Stop (easy version) data structures, dp	3500	x110
1545D	AquaMoon and Wrong Coordinate constructive algorithms, interactive, math	3000	x820
1545C	AquaMoon and Permutations 2-sat, brute force, combinatorics, constructive algorithms, graph matchings, graphs	2800	x847
1545B	AquaMoon and Chess combinatorics, math	1900	x7255
1545A	AquaMoon and Strange Sort sortings	1500	x15112
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x521
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x2226
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x8106
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5735
1543B	Customising the Track combinatorics, greedy, math	900	x24821
1543A	Exciting Bets greedy, math, number theory	900	x45656
1542E2	Abnormal Permutation Pairs (hard version) combinatorics, dp, fft, math	2700	x1123
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1521
1542D	Priority Queue combinatorics, dp, implementation, math, ternary search	2200	x3072
1542C	Strange Function math, number theory	1600	x16681
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x27396
1542A	Odd Set math	800	x53192
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x41868
1541A	Pretty Permutations constructive algorithms, greedy, implementation	800	x31006
1540E	Tasty Dishes math, matrices	3500	x140
1540D	Inverse Inversions binary search, brute force, data structures	3200	x418
1540C2	Converging Array (Hard Version) dp, math	2900	x620
1540C1	Converging Array (Easy Version) dp, math	2700	x835
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x3157
1540A	Great Graphs constructive algorithms, graphs, greedy, shortest paths, sortings	1400	x15219
1539F	Strange Array data structures, greedy, sortings	2600	x1098
1539E	Game with Cards binary search, constructive algorithms, data structures, dp, greedy, implementation	2500	x1124
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x13019
1539C	Stable Groups greedy, sortings	1200	x34581
1539B	Love Song dp, implementation, strings	800	x27231
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x21944
1538G	Gift Set binary search, greedy, math, ternary search	2100	x5500
1538F	Interesting Function binary search, dp, math, number theory	1500	x22973
1538E	Funny Substrings data structures, hashing, implementation, matrices, strings	2100	x3318
1538D	Another Problem About Dividing Numbers constructive algorithms, math, number theory	1700	x15823
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x37178
1538B	Friends and Candies greedy, math	800	x34139
1538A	Stone Game brute force, dp, greedy	800	x41417
1537F	Figure Fixing constructive algorithms, dfs and similar, dsu, graphs, greedy, math	2200	x2924
1537E2	Erase and Extend (Hard Version) binary search, data structures, greedy, hashing, string suffix structures, strings, two pointers	2200	x6549
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x17440
1537D	Deleting Divisors games, math, number theory	1700	x14084
1537C	Challenging Cliffs constructive algorithms, greedy, implementation, math	1200	x31126
1537B	Bad Boy constructive algorithms, greedy, math	900	x46895
1537A	Arithmetic Array greedy, math	800	x41942
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x1257
1536E	Omkar and Forest combinatorics, graphs, math, shortest paths	2300	x2794
1536D	Omkar and Medians data structures, greedy, implementation	2000	x5220
1536C	Diluc and Kaeya data structures, dp, hashing, number theory	1500	x16627
1536B	Prinzessin der Verurteilung brute force, constructive algorithms, strings	1200	x27362
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x20956
1535F	String Distance binary search, brute force, data structures, hashing, implementation, strings	3000	x742
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x3200
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x8661

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