Problemset - Codeforces

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Codeforces Round 876 (Div. 2)
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Problems

#	Name
1773L	Lisa's Sequences dp	3500	x20
1776E	Crossing the Railways data structures, dp	3500	x26
1170I	Good Subsets *special problem, dp		x28
1431J	Zero-XOR Array *special problem, dp	3400	x34
1211H	Road Repair in Treeland *special problem, binary search, dp, trees	3100	x34
1297H	Paint the String *special problem, dp, strings		x36
1346I	Pac-Man 2.0 *special problem, dp	2900	x37
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x38
1830F	The Third Grace data structures, dp		x41
1776K	Uniform Chemistry dp, math	3200	x45
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x50
1517H	Fly Around the World dp, geometry	3500	x55
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x57
1326G	Spiderweb Trees dp, geometry, trees	3500	x57
1545F	AquaMoon and Potatoes brute force, data structures, dp	3500	x58
1654H	Three Minimums combinatorics, constructive algorithms, divide and conquer, dp, fft, math	3500	x59
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x60
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x60
1545E1	AquaMoon and Time Stop (easy version) data structures, dp	3500	x60
1297G	M-numbers *special problem, dp, math		x60
457F	An easy problem about trees dp, games, greedy, trees	3200	x67
1545E2	AquaMoon and Time Stop (hard version) data structures, dp	3500	x70
1349E	Slime and Hats constructive algorithms, dp, greedy	3500	x70
1533H	Submatrices *special problem, bitmasks, data structures, dp		x73
1218A	BubbleReactor dp, graphs	2800	x73
1322F	Assigning Fares dp, trees	3500	x76
1677F	Tokitsukaze and Gems dp, math	3500	x77
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x78
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x78
1510H	Hard Optimization dp	3200	x78
1237G	Balanced Distribution data structures, dp, greedy	3500	x81
1097H	Mateusz and an Infinite Sequence bitmasks, brute force, dp, strings	3400	x85
1819F	Willy-nilly, Crack, Into Release! data structures, dp	3500	x87
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x89
1349F2	Slime and Sequences (Hard Version) dp, fft, math	3500	x92
774I	Composing Of String *special problem, dp	2300	x92
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x94
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x96
1530H	Turing's Award data structures, dp	3400	x98
336E	Vasily the Bear and Painting Square bitmasks, combinatorics, dp, implementation	2700	x98
251E	Tree and Table dfs and similar, dp, implementation, trees	3000	x99
924F	Minimal Subset Difference dp	3200	x100
1444E	Finding the Vertex brute force, dfs and similar, dp, interactive, trees	3500	x106
1250D	Conference Problem dp	3000	x106
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x106
1387C	Viruses *special problem, dp, shortest paths, string suffix structures	2900	x107
852H	Bob and stages dp, geometry	3000	x110
185C	Clever Fat Rat dp	2500	x110
424E	Colored Jenga dfs and similar, dp, probabilities	2500	x111
1804H	Code Lock bitmasks, dp	3300	x115
1585G	Poachers dp, games, graphs, trees	2500	x115
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x117
662E	To Hack or not to Hack brute force, dp, greedy	3100	x118
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x119
1431G	Number Deletion Game *special problem, dp, games, greedy	2100	x121
379G	New Year Cactus dp	3100	x122
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x124
756E	Byteland coins combinatorics, dp, math	3200	x126
717B	R3D3’s Summer Adventure dp, greedy	2700	x128
1534H	Lost Nodes constructive algorithms, dp, graphs, interactive, sortings, trees	3500	x131
1210G	Mateusz and Escape Room dp	3500	x131
1750G	Doping combinatorics, dp, math	3300	x134
1012F	Passports dp, implementation	3400	x138
933E	A Preponderant Reunion constructive algorithms, dp	3200	x140
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x142
156E	Mrs. Hudson's Pancakes brute force, dp	3000	x144
138E	Hellish Constraints brute force, dp, two pointers	2900	x144
1007E	Mini Metro dp	3400	x146
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x147
1408I	Bitwise Magic dp, math	3200	x147
391F1	Stock Trading dp		x148
1456E	XOR-ranges dp, greedy	3500	x149
331E2	Deja Vu constructive algorithms, dp	3100	x149
891D	Sloth dfs and similar, dp, graph matchings, trees	3100	x150
1571F	Kotlinforces *special problem, constructive algorithms, dp	2000	x152
1218C	Jumping Transformers dp	2600	x152
1761F1	Anti-median (Easy Version) dp, math	3100	x155
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x155
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x155
980F	Cactus to Tree dp, graphs, trees	2900	x157
833E	Caramel Clouds data structures, dp, sortings	3400	x158
581E	Kojiro and Furrari dp, greedy	2800	x160
720D	Slalom data structures, dp, sortings	3100	x161
1603F	October 18, 2017 combinatorics, dp, implementation, math	2700	x162
1832F	Zombies binary search, dp	3200	x165
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x165
1474F	1 2 3 4 ... dp, math, matrices	3000	x169
855G	Harry Vs Voldemort dfs and similar, dp, graphs, trees	3300	x171
1815E	Bosco and Particle dp, math, number theory, strings	3100	x172
1799H	Tree Cutting bitmasks, dfs and similar, dp	3200	x173
1523H	Hopping Around the Array data structures, dp	3500	x173
1268E	Happy Cactus dp	3400	x173
1194G	Another Meme Problem dp	2700	x173
1500F	Cupboards Jumps dp	3500	x174
1488E	Palindromic Doubles *special problem, data structures, dp	2200	x177
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x180
1450G	Communism bitmasks, dp, trees	3500	x181
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x181
914H	Ember and Storm's Tree Game combinatorics, dp, games, trees	3400	x183
848E	Days of Floral Colours combinatorics, divide and conquer, dp, fft, math	3400	x183

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