Problemset - Codeforces

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Codeforces Round #631 (Div. 1) - Thanks, Denis aramis Shitov!
09:28:00
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Before contest
Codeforces Round #631 (Div. 2) - Thanks, Denis aramis Shitov!
09:28:00
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brute force

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Problems

#	Name
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	2800	x29
1320F	Blocks and Sensors brute force	3300	x31
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x32
1120E	The very same Munchhausen brute force	3000	x44
1017H	The Films brute force	3300	x44
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	2700	x46
1097H	Mateusz and an Infinite Sequence bitmasks, brute force, dp, strings	3000	x48
126E	Pills brute force, flows	3100	x50
73F	Plane of Tanks brute force, geometry	2700	x51
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3200	x58
109E	Lucky Interval brute force, math	2600	x60
1210F2	Marek and Matching (hard version) brute force, probabilities	3100	x61
1302F	Keep talking and nobody explodes -- easy bitmasks, brute force, expression parsing		x65
662E	To Hack or not to Hack brute force, dp, greedy	2800	x81
1210F1	Marek and Matching (easy version) brute force, probabilities	2900	x83
1271F	Divide The Students brute force	3000	x89
1250I	Show Must Go On binary search, brute force, greedy, shortest paths	3100	x89
1167G	Low Budget Inception brute force, geometry	3000	x101
138E	Hellish Constraints brute force, dp, two pointers	2900	x105
105D	Entertaining Geodetics brute force, dsu, implementation	2600	x105
869D	The Overdosing Ubiquity brute force, dfs and similar, graphs	2800	x110
1268D	Invertation in Tournament brute force, divide and conquer, graphs, math	3100	x111
72E	Ali goes shopping *special problem, brute force, strings	1900	x114
478E	Wavy numbers brute force, dfs and similar, meet-in-the-middle, sortings	2700	x122
156E	Mrs. Hudson's Pancakes brute force, dp	2900	x125
1056G	Take Metro brute force, data structures, graphs	2800	x128
97D	Robot in Basement bitmasks, brute force, implementation	2600	x138
44I	Toys brute force, combinatorics	2400	x139
309D	Tennis Rackets brute force, geometry	2600	x143
86E	Long sequence brute force, math, matrices	2600	x143
1181E2	A Story of One Country (Hard) brute force, greedy, sortings	3000	x145
105E	Lift and Throw brute force	2400	x146
933D	A Creative Cutout brute force, combinatorics, math	2900	x147
363E	Two Circles brute force, data structures, implementation	2600	x149
1031F	Familiar Operations brute force, graphs, math	2700	x151
666D	Chain Reaction brute force, geometry	3000	x157
575C	Party bitmasks, brute force, graph matchings	2800	x161
391C1	The Tournament brute force		x164
1305G	Kuroni and Antihype bitmasks, brute force, dp, dsu, graphs	3300	x166
497D	Gears brute force, geometry, math	2800	x173
164D	Minimum Diameter binary search, brute force	2900	x176
64E	Prime Segment *special problem, brute force	2000	x176
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3100	x179
436F	Banners brute force, data structures, dp	2900	x179
850E	Random Elections bitmasks, brute force, divide and conquer, fft, math	2800	x183
391D1	Supercollider brute force		x184
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2400	x185
97A	Domino brute force, implementation	2400	x186
1155F	Delivery Oligopoly brute force, dp, graphs	2700	x191
175E	Power Defence brute force, dp, geometry, greedy	2500	x197
991F	Concise and clear brute force, greedy, implementation, math	2800	x199
217D	Bitonix' Patrol bitmasks, brute force, combinatorics, dfs and similar, math	2800	x202
152D	Frames brute force	2500	x204
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x205
193E	Fibonacci Number brute force, math, matrices	2900	x206
1033F	Boolean Computer bitmasks, brute force, fft, math	2800	x215
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2800	x217
335D	Rectangles and Square brute force, dp	2400	x217
105C	Item World brute force, implementation, sortings	2100	x218
873E	Awards For Contestants brute force, data structures, dp	2500	x221
1192C	Cubeword *special problem, brute force, dp, meet-in-the-middle		x223
568D	Sign Posts brute force, geometry, math	2800	x223
294D	Shaass and Painter Robot brute force, implementation, number theory	2700	x227
241F	Race brute force, implementation	2300	x227
60D	Savior brute force, dsu, math	2400	x228
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x229
394D	Physical Education and Buns brute force, implementation, math		x229
955D	Scissors brute force, strings	2700	x230
175D	Plane of Tanks: Duel brute force, dp, math, probabilities	2400	x230
1149D	Abandoning Roads brute force, dp, graphs, greedy	2900	x239
93C	Azembler brute force, implementation	2400	x248
135D	Cycle brute force, dfs and similar, implementation	2400	x251
852A	Digits brute force, implementation, math	2700	x253
460E	Roland and Rose brute force, geometry, math, sortings	2700	x257
1181E1	A Story of One Country (Easy) brute force, divide and conquer, sortings	2600	x263
685E	Travelling Through the Snow Queen's Kingdom bitmasks, brute force, divide and conquer, graphs	2700	x263
68C	Synchrophasotron brute force	2200	x264
761F	Dasha and Photos brute force, data structures, dp, implementation	2900	x270
333C	Lucky Tickets brute force, constructive algorithms	2800	x270
43E	Race brute force, implementation, two pointers	2200	x270
518F	Pasha and Pipe binary search, brute force, combinatorics, dp, implementation	2800	x275
274C	The Last Hole! brute force, geometry	2600	x278
263E	Rhombus brute force, data structures, dp	2600	x278
1063D	Candies for Children brute force, math	2800	x279
343E	Pumping Stations brute force, dfs and similar, divide and conquer, flows, graphs, greedy, trees	2800	x283
833C	Ever-Hungry Krakozyabra brute force, combinatorics, greedy, math	2600	x286
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2800	x286
163D	Large Refrigerator brute force	2800	x288
201D	Brand New Problem bitmasks, brute force, dp	2500	x289
261E	Maxim and Calculator brute force, dp, two pointers	2800	x293
747F	Igor and Interesting Numbers brute force, combinatorics, dp, math	2600	x294
316D1	PE Lesson brute force, dp	2300	x294
391B	Word Folding brute force		x295
949E	Binary Cards brute force	2700	x297
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2800	x301
54D	Writing a Song brute force, dp, strings	2100	x304
311C	Fetch the Treasure brute force, data structures, graphs, shortest paths	2600	x309
698D	Limak and Shooting Points brute force, geometry, math	2800	x310
358E	Dima and Kicks brute force, dsu, graphs, implementation	2600	x310
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2900	x312

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