Problemset - Codeforces

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Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)
04:12:01
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Problems

#	Name
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1572
274D	Lovely Matrix dfs and similar, graphs, greedy, sortings	2200	x1016
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1180
271E	Three Horses constructive algorithms, math, number theory	2200	x481
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1626
268E	Playlist math, probabilities, sortings	2100	x981
268D	Wall Bars dp	2300	x503
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1340
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1519
257E	Greedy Elevator data structures, implementation	2200	x281
255E	Furlo and Rublo and Game games, implementation, math	2200	x836
254E	Dormitory dp, implementation	2100	x661
254D	Rats brute force, dfs and similar, graphs, implementation, shortest paths	2300	x527
253E	Printer binary search, data structures, implementation, sortings	2200	x525
248D	Sweets for Everyone! binary search, greedy, implementation	2300	x487
245G	Suggested Friends brute force, graphs	2200	x428
243C	Colorado Potato Beetle dfs and similar, implementation	2200	x524
242D	Dispute dfs and similar, graphs, greedy	2100	x1854
241F	Race brute force, implementation	2300	x261
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1215
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1768
229D	Towers dp, greedy, two pointers	2100	x2177
228D	Zigzag data structures	2100	x377
226D	The table constructive algorithms, greedy	2100	x956
225E	Unsolvable math, number theory	2100	x790
225D	Snake bitmasks, dfs and similar, graphs, implementation	2200	x919
220C	Little Elephant and Shifts data structures	2100	x928
219E	Parking Lot data structures	2200	x606
217B	Blackboard Fibonacci brute force, math	2100	x873
215E	Periodical Numbers combinatorics, dp, number theory	2100	x545
215C	Crosses brute force, implementation	2100	x661
213D	Stars constructive algorithms, geometry	2300	x335
212C	Cowboys combinatorics, dp, math	2100	x377
212B	Polycarpus is Looking for Good Substrings bitmasks, hashing, implementation	2300	x329
209B	Pixels constructive algorithms, math	2100	x363
208E	Blood Cousins binary search, data structures, dfs and similar, trees	2100	x6297
207D8	The Beaver's Problem - 3	2300	x89
207D6	The Beaver's Problem - 3	2100	x80
207D4	The Beaver's Problem - 3	2100	x149
207D10	The Beaver's Problem - 3	2100	x82
207C2	Game with Two Trees	2200	x80
207C1	Game with Two Trees	2100	x104
203E	Transportation greedy, sortings, two pointers	2300	x279
196C	Paint Tree constructive algorithms, divide and conquer, geometry, sortings, trees	2200	x807
191E	Thwarting Demonstrations binary search, data structures, trees	2200	x818
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1466
183C	Cyclic Coloring dfs and similar	2200	x603
182A	Battlefield geometry, graphs, implementation, shortest paths	2200	x280
180B	Divisibility Rules math, number theory	2300	x331
178F2	Representative Sampling dp, sortings, strings	2200	x322
178E3	The Beaver's Problem - 2	2300	x201
178D3	Magic Squares	2100	x242
177F2	Script Generation	2300	x204
172E	BHTML+BCSS *special problem, dfs and similar, expression parsing	2200	x269
167C	Wizards and Numbers games, math	2300	x659
166B	Polygons geometry, sortings	2100	x2374
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6451
165D	Beard Graph data structures, dsu, trees	2100	x1608
163C	Conveyor sortings, two pointers	2100	x538
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2419
154C	Double Profiles graphs, hashing, sortings	2300	x2728
153E	Euclidean Distance *special problem	2100	x78
153C	Caesar Cipher *special problem	2200	x372
150C	Smart Cheater data structures, math, probabilities	2200	x638
149E	Martian Strings string suffix structures, strings	2300	x2060
145C	Lucky Subsequence combinatorics, dp, math	2100	x1897
144E	Competition data structures, greedy	2200	x573
142C	Help Caretaker brute force, dp	2300	x907
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x917
141D	Take-off Ramps graphs, shortest paths	2300	x888
138C	Mushroom Gnomes - 2 binary search, data structures, probabilities, sortings	2200	x847
134C	Swaps constructive algorithms, graphs, greedy	2200	x465
132D	Constants in the language of Shakespeare constructive algorithms, dp, greedy	2100	x608
132B	Piet implementation	2100	x659
130I	Array sorting *special problem, sortings	2300	x166
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x2484
126D	Fibonacci Sums dp, math	2300	x813
125D	Two progressions constructive algorithms, greedy	2200	x394
123D	String string suffix structures	2300	x1191
123C	Brackets combinatorics, dp, greedy	2300	x597
120I	Luck is in Numbers greedy	2200	x303
115C	Plumber math	2200	x589
113C	Double Happiness brute force, math, number theory	2200	x1216
111D	Petya and Coloring combinatorics, dp	2300	x727
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1314
106E	Space Rescuers geometry, ternary search	2100	x852
105C	Item World brute force, implementation, sortings	2200	x329
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x2037
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x674
100H	Battleship *special problem, dfs and similar, implementation	2100	x75
98B	Help King implementation, probabilities, trees	2200	x118
97E	Leaders dfs and similar, dsu, graphs, trees	2200	x375
97B	Superset constructive algorithms, divide and conquer	2300	x811
91C	Ski Base combinatorics, dsu, graphs	2300	x868
89C	Chip Play brute force, data structures, implementation	2300	x614
89B	Widget Library dp, expression parsing, graphs, implementation	2300	x513
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x861
86D	Powerful array data structures, implementation, math, two pointers	2200	x13099
86B	Tetris revisited constructive algorithms, graph matchings, greedy, math	2200	x403
85D	Sum of Medians binary search, brute force, data structures, implementation	2300	x1968