Problemset - Codeforces

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Ethflow Round 1 (Codeforces Round, Div. 1 + Div. 2)
3 days

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Difficulty: —

greedy

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Problems

#	Name
2063D	Game With Triangles binary search, data structures, greedy, math, ternary search, two pointers		x1933
2063C	Remove Exactly Two brute force, data structures, dp, fft, graphs, greedy, sortings, trees		x6593
2063B	Subsequence Update data structures, greedy, sortings		x13742
2061G	Kevin and Teams 2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers		x224
2061F2	Kevin and Binary String (Hard Version) 2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers		x49
2061F1	Kevin and Binary String (Easy Version) 2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers		x1314
2061E	Kevin and And 2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers		x2166
2061D	Kevin and Numbers 2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers		x6191
2061C	Kevin and Puzzle 2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers		x5579
2061B	Kevin and Geometry 2-sat, binary search, bitmasks, brute force, chinese remainder theorem, combinatorics, constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers		x9781
2061A	Kevin and Arithmetic constructive algorithms, data structures, dfs and similar, divide and conquer, dp, dsu, expression parsing, fft, flows, games, geometry, graph matchings, graphs, greedy, hashing, implementation, interactive, math, matrices, meet-in-the-middle, number theory, probabilities, schedules, shortest paths, sortings, string suffix structures, strings, ternary search, trees, two pointers		x15313
2060G	Bugged Sort dp, greedy, sortings		x488
2060E	Graph Composition dfs and similar, dsu, graphs, greedy		x6699
2060D	Subtract Min Sort greedy		x18256
2060C	Game of Mathletes games, greedy, sortings, two pointers		x21229
2060B	Farmer John's Card Game greedy, sortings		x19895
2057H	Coffee Break data structures, greedy, math	3500	x119
2057D	Gifts Order data structures, greedy, implementation, math, matrices	2000	x3970
2057C	Trip to the Olympiad bitmasks, constructive algorithms, greedy, math	1500	x10373
2057B	Gorilla and the Exam greedy, sortings	1000	x17871
2055E	Haystacks brute force, constructive algorithms, data structures, greedy, sortings		x256
2055D	Scarecrow greedy, implementation, math		x3154
2055C	The Trail brute force, constructive algorithms, greedy, math, two pointers		x12572
2055B	Crafting constructive algorithms, greedy, sortings		x21071
2055A	Two Frogs constructive algorithms, games, greedy, math		x27002
2053I2	Affectionate Arrays (Hard Version) data structures, dp, graphs, greedy, math, shortest paths, two pointers	3500	x32
2053I1	Affectionate Arrays (Easy Version) data structures, dp, greedy	2800	x349
2053G	Naive String Splits binary search, brute force, greedy, hashing, math, number theory, strings	3400	x141
2053F	Earnest Matrix Complement brute force, data structures, dp, greedy, implementation, math	2600	x727
2053E	Resourceful Caterpillar Sequence dfs and similar, dp, games, graphs, greedy, trees	1900	x3357
2053D	Refined Product Optimality binary search, data structures, greedy, math, schedules, sortings	1700	x5990
2053B	Outstanding Impressionist binary search, brute force, data structures, greedy	1200	x13401
2053A	Tender Carpenter dp, geometry, greedy, math	800	x18526
2052J	Judicious Watching binary search, greedy, sortings	2000	x885
2051F	Joker brute force, greedy, implementation, math	2000	x2747
2051E	Best Price binary search, brute force, data structures, greedy, sortings	1600	x8102
2051A	Preparing for the Olympiad greedy	800	x28259
2050D	Digital string maximization brute force, greedy, math, strings	1300	x14370
2050B	Transfusion brute force, greedy, math	1100	x21454
2049C	MEX Cycle brute force, constructive algorithms, greedy, implementation	1500	x10178
2049A	MEX Destruction greedy, implementation	800	x20450
2048E	Kevin and Bipartite Graph constructive algorithms, graphs, greedy	2000	x2577
2048D	Kevin and Competition Memories binary search, brute force, data structures, greedy, sortings, two pointers	1600	x6397
2048C	Kevin and Binary Strings bitmasks, brute force, greedy, implementation, strings	1200	x12106
2048B	Kevin and Permutation constructive algorithms, greedy	900	x16753
2048A	Kevin and Combination Lock brute force, greedy, implementation, math, number theory	800	x19535
2047B	Replace Character brute force, combinatorics, greedy, strings	900	x14006
2046F2	Yandex Cuneiform (Hard Version) constructive algorithms, data structures, greedy, implementation	3500	x41
2046F1	Yandex Cuneiform (Easy Version) constructive algorithms, data structures, greedy	3300	x60
2046E2	Cheops and a Contest (Hard Version) greedy, implementation	3500	x37
2046E1	Cheops and a Contest (Easy Version) constructive algorithms, greedy	2900	x133
2046C	Adventurers binary search, data structures, greedy, sortings, ternary search, two pointers	2100	x1680
2046B	Move Back at a Cost binary search, data structures, greedy, sortings	1600	x7653
2046A	Swap Columns and Find a Path greedy, sortings	1200	x12488
2045C	Saraga greedy, strings	1400	x3920
2045A	Scrambled Scrabble brute force, greedy	1700	x1492
2044E	Insane Problem binary search, greedy, implementation, math, number theory	1300	x12911
2044D	Harder Problem constructive algorithms, greedy, math	1100	x18234
2044C	Hard Problem greedy, math	800	x33882
2043F	Nim bitmasks, brute force, combinatorics, dp, games, greedy, implementation, shortest paths	2700	x618
2043E	Matrix Transformation bitmasks, brute force, data structures, dfs and similar, graphs, greedy, implementation	2300	x1321
2043C	Sums on Segments binary search, brute force, data structures, dp, greedy, math	1600	x7963
2042E	Vertex Pairs binary search, brute force, data structures, dfs and similar, divide and conquer, greedy, implementation, trees	2900	x354
2042C	Competitive Fishing greedy	1800	x6686
2042B	Game with Colored Marbles games, greedy	900	x15395
2042A	Greedy Monocarp greedy, sortings	800	x17595
2041M	Selection Sort binary search, data structures, greedy, two pointers	2000	x876
2041J	Bottle Arrangement data structures, divide and conquer, dp, dsu, greedy	2700	x136
2040E	Control of Randomness combinatorics, dfs and similar, dp, graphs, greedy, math, probabilities, trees	2100	x1849
2040D	Non Prime Tree brute force, constructive algorithms, dfs and similar, greedy, number theory, trees, two pointers	1900	x4295
2040C	Ordered Permutations bitmasks, combinatorics, constructive algorithms, greedy, math, two pointers	1600	x8108
2040B	Paint a Strip constructive algorithms, greedy, math	1000	x18749
2039D	Shohag Loves GCD constructive algorithms, greedy, math, number theory	1700	x5270
2039B	Shohag Loves Strings constructive algorithms, greedy, implementation, strings	1000	x13282
2038L	Bridge Renovation brute force, dp, greedy, math, two pointers	1400	x5258
2038K	Grid Walk brute force, dp, greedy, math, number theory	2100	x1240
2038J	Waiting for... greedy, implementation	800	x6902
2038E	Barrels data structures, greedy, math	2900	x118
2038C	DIY data structures, geometry, greedy, sortings	1400	x4556
2038B	Make It Equal binary search, brute force, greedy, math	2100	x1390
2038A	Bonus Project games, greedy	1400	x3651
2037E	Kachina's Favorite Binary String dp, greedy, interactive, two pointers	1600	x5629
2037D	Sharky Surfing data structures, greedy, two pointers	1300	x11400
2037C	Superultra's Favorite Permutation constructive algorithms, greedy, math, number theory	1000	x19991
2036E	Reverse the Rivers binary search, constructive algorithms, data structures, greedy	1600	x7482
2036B	Startup greedy, sortings	800	x25470
2035E	Monster binary search, brute force, constructive algorithms, greedy, implementation, math, ternary search	2300	x1676
2035D	Yet Another Real Number Problem binary search, data structures, divide and conquer, greedy, implementation, math	1800	x4892
2035B	Everyone Loves Tres constructive algorithms, greedy, math, number theory	900	x16812
2034G2	Simurgh's Watch (Hard Version) greedy, implementation	3500	x35
2034G1	Simurgh's Watch (Easy Version) constructive algorithms, greedy, implementation, sortings	3500	x43
2034E	Permutations Harmony combinatorics, constructive algorithms, greedy, hashing, math	2200	x1575
2034D	Darius' Wisdom constructive algorithms, greedy, implementation, sortings	1600	x4903
2034B	Rakhsh's Revival data structures, greedy, implementation, two pointers	1000	x12076
2033G	Sakurako and Chefir data structures, dfs and similar, dp, greedy, trees	2200	x1443
2033E	Sakurako, Kosuke, and the Permutation brute force, data structures, dfs and similar, dsu, graphs, greedy, math	1400	x10991
2033D	Kousuke's Assignment data structures, dp, dsu, greedy, math	1300	x14412
2033C	Sakurako's Field Trip dp, greedy, two pointers	1400	x14012
2033B	Sakurako and Water brute force, constructive algorithms, greedy	900	x24639
2032E	Balanced constructive algorithms, data structures, greedy, implementation, math	2400	x1119

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